Pitchlign, TJ TandemRoller, Inner Rings Heavy Duty Needle Roller Bearings

Transcript

1 Pitchlign, TJ TandemRoller, Inner Rings Heavy Duty Needle Roller Bearings High load capacity, long life, caged roller bearings in standard configurations and custom designs RBC Division

2 RBC Bearings Incorporated (RBC Bearings, RBC) has had a long tradition of innovation, commitment, and quality since the company was founded in Today, RBC Bearings has grown into a world-class manufacturer of standard and custom-engineered bearings and related products, with a product focus on research, testing, and development of the best product for specific applications. What We Manufacture RBC Bearings, with facilities throughout North America and Europe, provides bearings and precision products for applications in the construction, mining, material handling, transportation and off-highway equipment, robotics and automation, farming, machine tool, and semiconductor equipment industries. Through RBC Aerospace Bearings, the company is a major manufacturer of highly-engineered bearings and precision products for military, defense, and commercial aerospace applications. RBC's high-quality bearings include: Heavy Duty Needle Roller Bearings - Pitchlign caged heavy duty needle roller bearings, inner rings, TJ TandemRoller bearings for long life. Spherical Plain Bearings - Radial, angular, contact, high misalignment, extended inner ring, DuraLube maintenance-free spherical plain bearings, QuadLube long life bearings, ImpactTuff case carburized bearings, ShimPack double-acting angular contact bearings, CrossLube lubrication groove systems, SpreadLock Seal, and MillTuff 3-part bearings. Cam Followers and Yoke Rollers - Standard stud, heavy stud, yoke type, caged roller followers, RBC Roller long life cam followers, HexLube universal cam followers, airframe track rollers. Mastguide rollers and carriage rollers, chain sheaves (for leaf chain), toothless sprockets (for roller chain), and heavy-duty roller bearing construction. Rod Ends - Commercial and aerospace, precision, Mil-Spec series, self-lubricating, inch and metric. Heim, Unibal, and Spherco brands. Self-Lubricating Bearings - Radial, thrust, rod ends, spherical plain bearings, high temperature, high loads, inch and metric. Fiberglide brand. Thin Section Ball Bearings - Standard cross sections to one inch. Sizes to 40 inches. Stainless steel and other materials available. Seals available on all sizes and standard cross sections. Airframe Control Bearings - Ball bearing types, self-lubricating types, needle rollers, track rollers. Ground, Semiground, and Unground Ball Bearings - Full complement, utilizes design and burnished races for higher loads, long life, and smooth operation. Dowel Pins, Loose Needle Rollers, Shafts Tapered Roller and Tapered Thrust Bearings - Case-hardened and through-hardened in a variety of sizes, used in Class 8 heavy truck and trailer wheel bearings, final drive transmissions and gear boxes. RBC Heavy Duty Needle Roller Bearings RBC produces an extensive heavy duty needle roller bearing product line from 1 inch outer ring OD to 15 inch outer ring OD. RBC heavy duty needle roller bearings can be found in helicopter rotors and transmissions, marine crankshafts and connecting rods, gear pumps, oil field pumping jacks, and mud pumps. The RBC SJ series of Pitchlign heavy duty needle roller bearings are supplied in standard envelopes in both sealed and unsealed configurations. RBC TJ TandemRoller heavy duty needle roller bearings increase the capacity of the standard Pitchlign SJ series from 10% to 40% while maintaining the standard SJ envelope. RBC inner rings can be used separately or as an inner race for complimentary SJ or TJ roller bearings. RBC produces metric roller bearings where volume permits. How We Can Serve You RBC has implemented a total quality control system that uses statistical quality control at all facilities, and manufactures in high volume to a just-in-time program. To serve the ongoing needs of customers, RBC has a network of over 1,600 distributors and sales engineers throughout North and South America and Europe, with authorized agents worldwide. For assistance with your bearing application, contact: Warranty Customer Service RBC products are warranted for material and workmanship for a period not to exceed 90 days from shipment and for a value not to exceed purchase price. No other warranty is in effect. Disclaimer and Intellectual Property Statement The materials comprising this Catalog are provided by RBC Bearings Incorporated ("RBC Bearings, RBC") as a service to its customers on an "as-is" basis for informational purposes only. RBC assumes no responsibility for any errors or omissions in these materials. RBC makes no commitment to update the information contained herein. RBC makes no, and expressly disclaims any, representations or warranties, express or implied, regarding the Catalog, including, without limitation, any implied warranties of merchantability or fitness for a particular purpose. RBC makes no, and expressly disclaims any, warranties, express or implied, regarding the correctness, accuracy, completeness, timeliness, and reliability of the text, graphics and any other items in the Catalog. Under no circumstances shall RBC, its affiliates, or any of their respective partners, officers, directors, employees, agents or representatives be liable for any damages, whether direct, indirect, special or consequential damages for lost revenues, lost profits, or otherwise, arising from or in connection with this Catalog and the materials contained herein. All materials contained in the Catalog are protected by copyright laws, and may not be reproduced, republished, distributed, transmitted, displayed, broadcast or otherwise exploited in any manner without the express prior written permission of RBC. RBC's names and logos and all related trademarks (including RBC Part Numbers, Series Number, and Cone and Cup Numbers), tradenames, and other intellectual property are the property of RBC Bearings and cannot be used without its express prior written permission. Ball Screws - Precision ground, rolled, ball splines. Long life, low wear, high accuracy, QuickTurn Ball Screw Repair Service. Custom Designed Bearings - RBC produces a wide range of custom bearings in various materials for specific applications RBC Bearings Incorporated

3 TABLE OF CONTENTS Precision Ground Heavy Duty Needle Roller Bearings - 7 Precision Ground Heavy Duty Needle Roller Bearings with Seals 8-9 Inner Rings for Precision Ground Heavy Duty Needle Roller Bearings 10-1 TandemRoller Bearings TJ, DTJ Series Technical Data Typical Applications Pitchlign Roller Bearing Interchange Tables 0-5 Pitchlign Application Sheet 6-8 Custom Designed Bearings 9 Other RBC Bearings Products Back Cover 1

4 Precision Ground Heavy Duty Needle Roller Bearings B r 1 Fw D SJ Pitchlign Series BEARING PART NUMBER Nominal Fw Inside Diameter Min. Max. D Outside Diameter Max. Min. r 1 Housing Fillet Max. Housing Shoulder Dia. +/ 1/64" Dynamic Capacity C (lbs.) Static Capacity C O (lbs.) SJ 7113 SJ 713 SJ 7133* SJ 7134* SJ 7153* SJ 7154* SJ 7163 SJ 7173* SJ 7174* SJ 7183 SJ 7193* SJ 7194* SJ 704 SJ 705 SJ 714* SJ 715* SJ 74 SJ 734* SJ 735* SJ 744 SJ 745 SJ 754* SJ 755* SJ 764 SJ 774* SJ 775* SJ 784 SJ 785 SJ 794* SJ 795* 1/ 9/16 5/8 5/8 3/4 3/4 13/16 7/8 7/8 15/ /16 1 1/16 1 1/8 1 1/8 1 3/16 1 1/4 1 1/4 1 5/16 1 5/16 1 7/16 1 1/ 1 1/ 1 9/16 1 9/16 1 5/8 1 5/ B Width Approx. Weight (lbs.) /16 3/4 15/16 15/16 1 1/16 1 1/16 1 1/16 1 3/16 1 3/16 1 3/16 1 5/16 1 5/16 1 5/16 1 5/16 1 7/16 1 9/16 1 9/16 1 9/16 1 9/ / / / / / / / / /16,700,900 3,900 5,00 4,500 6,000 3,800 4,700 6,300 4,300 5,00 7,000 6,000 7,500 7,600 9,400 6,700 7,900 9,700 7,000 8,800 8,400 8,600 7,00 8,100 11,500 7,600 9,400 10,000 1,400 3,500 3,900 4, ,000 8,700 5,400 6,700 9,700 6,400 7,900 11,400 10,300 13,600 13,00 17,300 11,800 14,00 18,600 13,300 17,600 15,900 17,600 14,00 16,000 3,000 15,700 0,700 19,500 5,600 All dimensions in inches. For matching inner rings see page 10 The part numbers of matching inner rings are the same as the corresponding bearing numbers, except the prefix SJ is replaced by the prefix IR Alternate inner rings with different bores are available for several bearings. Alternate inner rings carry suffix -C or -D. Example: Matching inner rings for bearing SJ 7315 (1 /34 x 5/8 x 1 1/4 ): a) IR 7315 (1 7/16 ID x 1 3/4 OD x 1 1/4 W) or b) IR 7315 C (1 1/ ID x 1 3/4 OD x 1 1/4 W) Inner rings must be ordered separately

5 Precision Ground Heavy Duty Needle Roller Bearings with Inner Rings For matching inner rings see Page 10 Limit Speed (rpm) Recommended Shaft Diameter ISO h6, use with ISO f6, use with H7 hsg fit N7 hsg fit Max. Min. Max. Min. Min. Recommended Housing Bore Slip Fit ISO H7 Press Fit ISO N7 Max. Mean Fit Min. Max. Mean Fit MS Suffix BEARING PART NUMBER 6,000 3,000 1,000 1,000 17,000 17,000 16,000 15,000 15,000 14,000 13,000 13,000 1,000 1,000 1,000 1,000 11,000 11,000 11,000 10,000 10,000 10,000 10,000 9,000 9,000 9,000 8,500 8,500 8,000 8, L.0006L.0006L.0006L T.0004T.0004T.0004T SJ 7113 SJ 713 SJ 7133* SJ 7134* SJ 7153* SJ 7154* SJ 7163 SJ 7173* SJ 7174* SJ 7183 SJ 7193* SJ 7194* SJ 704 SJ 705 SJ 714* SJ 715* SJ 74 SJ 734* SJ 735* SJ 744 SJ 745 SJ 754* SJ 755* SJ 764 SJ 774* SJ 775* SJ 784 SJ 785 SJ 794* SJ 795* The bearings meet Military Standard MS * These bearings have a radius at both ends of the outer ring. All other outer rings are manufactured with a radius at one end and a break corner at the other. 3

6 Precision Ground Heavy Duty Needle Roller Bearings SJ Pitchlign Series Fw BEARING Inside Diameter PART NUMBER Nominal Min. Max. D Outside Diameter Max. Min. B Width r 1 Housing Fillet Max. Approx. Weight (lbs.) Housing Shoulder Dia. +/ 1/64" Dynamic Capacity C (lbs.) Static Capacity C O (lbs.) SJ 7304 SJ 7305 SJ 7314* SJ 7315* SJ 734 SJ 735 SJ 7334* SJ 7335* SJ 7344 SJ 7345 SJ 7354* SJ 7355* SJ 8406 SJ 8407 SJ 8446 SJ 8447 SJ 8476 SJ 8477 SJ 8516 SJ 8517 SJ 8536 SJ 8537 SJ 9567 SJ / /16 1 3/4 1 3/4 1 13/ /16 1 7/8 1 7/8 1 15/ /16 1/4 1/4 1/ 1/ 3/4 3/ /8 3 1/8 3 1/4 3 1/ / /16 1/16 1/16 1/16 1/16 3/16 3/16 3/16 3/16 5/16 5/16 5/8 5/8 7/8 7/8 3 1/8 3 1/8 3 3/8 3 3/8 3 1/ 3 1/ 3 11/ /16 7,600 9,500 9,900 1,400 8,000 10,000 10,400 1,900 8,100 10,100 10,700 13,300 15,100 17,600 15,800 18,400 16,400 19,00 17,500 0,400 17,800 0,800 3,500 6,800 15,900 1,100 19,700 6,100 17,300 3,100 1,500 6,600 18,100 4,100,500 9,900 33,00 40,500 36,400 44,500 39,600 48,400 44,00 54,100 45,800 56,000 55,100 65,500 All dimensions in inches. For matching inner rings see page 11 The part numbers of matching inner rings are the same as the corresponding bearing numbers, except that the prefix SJ is replaced by the prefix IR. Alternate inner rings with different bores are available for several bearings. Alternate inner rings carry the suffix -C or -D. Example: Matching inner rings for bearing SJ 7355 (" x 9/16" x 1 1/4"): a) IR 7355 D (1 5/8"ID x "OD x 1 1/4"W) or b) IR 7355 (1 11/16"ID x "OD x 1 1/4"W) Inner rings must be ordered separately. 4

7 Precision Ground Heavy Duty Needle Roller Bearings with Inner Rings For matching inner rings see page 11 Limit Speed (rpm) 7,900 7,900 7,600 7,600 7,400 7,400 7,100 7,100 6,900 6,900 6,700 6,700 5,900 5,900 5,300 5,300 4,800 4,800 4,500 4,500 4,300 4,300 4,100 4,100 Recommended Shaft Diameter Recommended Housing Bore ISO h6, use with ISO f6, use with H7 hsg fit N7 hsg fit Slip Fit ISO H7 Press Fit ISO N7 Max. Min. Max. Min. Min. Max. Mean Fit Min. Max. Mean Fit These bearings meet Military Standard MS * These bearings have a radius at both ends of the outer ring. All other RBC outer rings are manufactured with a radius at one end and a break corner at the other. MS Suffix BEARING PART NUMBER SJ 7304 SJ 7305 SJ 7314* SJ 7315* SJ 734 SJ 735 SJ 7334* SJ 7335* SJ 7344 SJ 7345 SJ 7354* SJ 7355* SJ 8406 SJ 8407 SJ 8446 SJ 8447 SJ 8476 SJ 8477 SJ 8516 SJ 8517 SJ 8536 SJ 8537 SJ 9567 SJ

8 Precision Ground Heavy Duty Needle Roller Bearings B r 1 Fw D BEARING PART NUMBER Nominal Fw Inside Diameter Min. Max. D Outside Diameter Max. Min. B Width r 1 Housing Fillet Max. Approx. Weight (lbs.) Housing Shoulder Dia. +/ 1/64" Dynamic Capacity C (lbs.) Static Capacity C O (lbs.) SJ 9607 SJ 9608 SJ 9648 SJ 9687 SJ 9688 SJ 9717 SJ 9718 SJ 978 SJ 6768 SJ 6769 SJ 6770 SJ 6848 SJ 6849 SJ 6850 SJ 6918 SJ 6919 SJ 695 SJ 696 SJ 6935 SJ 6936 SJ 35 SJ 36 SJ 45 SJ 46 SJ 56 SJ 65 SJ 66 SJ 76 SJ / 3 1/ 3 3/ /8 4 1/8 4 1/4 4 1/ 4 1/ 4 1/ / 5 1/ / 6 1/ 7 1/4 7 1/4 7 3/4 7 3/4 8 1/4 8 3/4 8 3/4 9 1/4 10 1/ / /16 4 3/16 4 7/16 4 7/16 4 9/16 4 9/ /16 5 1/8 5 1/8 5 1/8 5 5/8 5 5/8 5 5/8 6 1/8 6 1/8 6 5/8 6 5/8 7 1/8 7 1/8 8 1/8 8 1/8 8 5/8 8 5/8 9 1/8 9 5/8 9 5/8 10 1/8 11 1/8 4,400 7,900 7,700 5,700 9,400 6,400 30,00 30,600 37,700 4,800 47,800 40,700 46,00 51,500 53,600 64,00 55,500 66,500 58,600 70,00 64,400 78,500 67,600 8,000 85,300 7,000 87,800 90,800 96,500 59,600 70,900 71,300 66,900 79,600 69,300 8,400 85,00 8,900 97,600 11,000 94, ,000 18, , , , , ,000 09,000 16,000 09, ,500 5,000 41, ,000 57,000 73, ,000 All dimensions in inches. For matching inner rings see page 1 The part numbers of matching inner rings are the same as the corresponding bearing numbers, except that the prefix SJ is replaced by the prefix IR. Alternate inner rings with different inside diameters are available for several bearings. Alternate inner rings carry the suffix -C or -D. Example: Matching inner rings for bearing SJ 9688 ( 4" x 5" x ") are: a) IR 9688 D (3 1/4"ID x 4"OD x "W) or b) IR 9688 (3 3/8"ID x 4"OD x "W) c) IR 9688 C (3 1/"ID x 4"OD x "W) Inner rings must be ordered separately. 6

9 Precision Ground Heavy Duty Needle Roller Bearings with Inner Rings For matching inner rings see page 1 Recommended Shaft Diameter Limit ISO h6, use with ISO f6, use with Speed H7 hsg fit N7 hsg fit (rpm) Max. Min. Max. Min. Min. Slip Fit ISO H7 Recommended Housing Bore Max. Mean Fit Press Fit ISO N7 Min. Max. Mean Fit MS Suffix BEARING PART NUMBER 3,800 3,800 3,600 3,300 3,300 3,00 3,00 3,100 3,000 3,000 3,000,700,700,680,400,400,00,00,000,000 1,800 1,800 1,700 1,700 1,600 1,500 1,500 1,400 1, L.0015L.0015L.0015L.0015L.0015L.0015L.0015L.0015L.0016L.0017L.0017L.0017L.0017L T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0009T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T.0011T SJ 9607 SJ 9608 SJ 9648 SJ 9687 SJ 9688 SJ 9717 SJ 9718 SJ 978 SJ 6768 SJ 6769 SJ 6770 SJ 6848 SJ 6849 SJ 6850 SJ 6918 SJ 6919 SJ 695 SJ 696 SJ 6935 SJ 6936 SJ 35 SJ 36 SJ 45 SJ 46 SJ 56 SJ 65 SJ 66 SJ 76 SJ 96 These bearings meet Military Standard MS

10 Precision Ground Heavy Duty Needle Roller Bearings with Seals BEARING PART NUMBER Nominal Fw Inside Diameter Min. Max. D Outside Diameter Max. Min. B Width r 1 Housing Fillet Max. Approx. Weight (lbs.) Housing Shoulder Dia. +/ 1/64" Dynamic Capacity C (lbs.) Static Capacity C O (lbs.) SJ 7134 SS SJ 7154 SS SJ 7174 SS SJ 7194 SS SJ 715 SS SJ 735 SS SJ 755 SS SJ 775 SS SJ 795 SS SJ 7315 SS SJ 7335 SS SJ 7355 SS SJ 8407 SS SJ 8447 SS SJ 8477 SS SJ 8517 SS SJ 9568 SS SJ 9608 SS SJ 9648 SS SJ 9688 SS SJ 9718 SS 5/8 3/4 7/ /8 1 1/4 1 1/ 1 5/8 1 3/4 1 7/8 1/4 1/ 3/ /4 3 1/ 3 3/ / All dimensions in inches. For matching inner rings see pages The numeric portion of a suitable inner ring part number matches the numeric component of the bearing. Inner rings with suffix -C or -D differ in inside diameter /16 1 1/16 1 3/16 1 5/16 1 9/ / / /16 1/16 3/16 1/16 5/8 7/8 3 1/8 3 3/8 3 11/ /16 4 3/16 4 7/16 4 9/16 3,00 4,500 4,700 5,00 7,600 7,900 8,400 8,100 10,000 9,900 10,400 10,700 15,100 15,800 16,300 17,600 3,500 4,00 5,600 6,00 6,000 4,000 6,000 6,700 7,900 13,00 14,00 15,900 16,000 19,500 19,700 1,500,500 33,00 36,400 39,600 44,00 55,100 59,900 64,600 67,00 69,500 Example: Suitable inner rings for bearing SJ 8447 SS ( 1/" x 3 1/4" x 1 3/4") are: a) IR 8447 (1 15/16"ID x 1/"OD x 1 3/4"W) or b) IR 8447 C ("ID x 1/"OD x 1 3/4"W) or c) IR 8447 C1 ( 1/8"ID x 1/"OD x 1 3/4"W). Inner rings must be ordered separately. 8

11 Available Seal Configurations TYPE S Single seal mounted in radius end of ring with sealing lip turned outward to exclude dirt. Bearing # SJ S TYPE SS Double seal with sealing lips turned outward to exclude dirt. Bearing # SJ SS TYPE SR Double seal with one seal mounted in chamfered end with sealing lip turned outward to exclude dirt and one seal mounted in radius end with sealing lip turned inward to retain lubricant. Bearing # SJ SR TYPE SX Single seal mounted in chamfered end of ring with sealing lip turned outward to exclude dirt. Bearing # SJ SX TYPE R Single seal mounted in radius end of ring with sealing lip turned inward to retain lubricant. Bearing # SJ R TYPE RR Double seal with sealing lips turned inward to retain lubricant. Bearing # SJ RR TYPE RS Double seal with one seal mounted in chamfered end with sealing lip turned inward to retain lubricant and one seal mounted in radius end with sealing lip turned outward to exclude dirt. TYPE RX Single seal mounted in chamfered end of ring with sealing lip turned inward to retain lubricant. Bearing # SJ RX CAUTION 1. When assembling shaft against the sealing lip, the shaft end must be chamfered.. For effective sealing the shaft must have a finish of 0 micro inches maximum. 3. These seals are suitable for shaft speeds of 1,000 feet per minute higher speeds are possible but seal life is shortened. 4. This type of seal is suitable for a continuous operating temperature of 50 F. However, they will operate under intermittent temperatures of up to 300 F. 5. When ordering, be sure to designate how the seal is to be mounted by using the correct suffix unless specified otherwise, type "SS" will be shipped. Limit Speed (rpm) 6,100 5,100 4,400 3,800 3,400 3,100,800,500,400,00,000 1,900 1,700 1,500 1,400 1,300 1,00 1,100 1, ISO h6, use with H7 hsg fit Recommended Shaft Diameter ISO f6, use with N7 hsg fit Slip Fit ISO H Recommended Housing Bore.0006L.0010L.001L Press Fit ISO N7 Max. Min. Max. Min. Min. Max. Mean Fit Min. Max. Mean Fit Outer rings have a radius on one end and a break corner at the opposite end..0004t.0008t.0008t.0008t BEARING PART NUMBER SJ 7134 SS SJ 7154 SS SJ 7174 SS SJ 7194 SS SJ 715 SS SJ 735 SS SJ 755 SS SJ 775 SS SJ 795 SS SJ 7315 SS SJ 7335 SS SJ 7355 SS SJ 8407 SS SJ 8447 SS SJ 8477 SS SJ 8517 SS SJ 9568 SS SJ 9608 SS SJ 9648 SS SJ 9688 SS SJ 9718 SS 9

12 Inner Rings INNER RING PART d Inside Diameter Nominal NUMBER Min. Max. F Outside Diameter r Shaft RECOMMENDED SHAFT DIAMETER B Width Approx. Slip Fit Press Fit Nominal Fillet Weight ISO g6 ISO m5 1) 1) Max. Min Max. (lbs) Max. Min. Max. Min. MS 5196 suffix IR 7133 IR 7134 IR 7153 IR 7154 IR 7153 C IR 7154 C IR 7173 IR 7174 IR 7173 C IR 7193 IR 7194 IR 7193 C IR 7194 C IR 704 IR 705 IR 714 IR 715 IR 714 C IR 715 C IR 734 IR 735 IR 744 IR 745 IR 754 D IR 755 D IR 754 IR 755 IR 774 IR 775 IR 774 C IR 775 C IR 784 IR 785 IR 795 D IR 795 C IR 7304 IR /8 3/8 1/ 1/ 9/16 9/16 5/8 5/8 11/16 3/4 3/4 13/16 13/16 13/16 13/16 7/8 7/8 15/16 15/ /16 1 1/ /16 1 1/8 1 1/8 1 3/16 1 3/16 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 5/16 1 5/ /8 5/8 3/4 3/4 3/4 3/4 7/8 7/8 7/ /16 1 1/16 1 1/8 1 1/8 1 1/8 1 1/8 1 1/4 1 1/4 1 5/16 1 5/16 1 1/ 1 1/ 1 1/ 1 1/ 1 9/16 1 9/16 1 5/8 1 5/8 1 5/8 1 5/8 1 11/ / All dimensions in inches These inner rings meet Military Standard MS ) Sorted by outside diameter

13 Inner Rings INNER d F r RECOMMENDED SHAFT DIAMETER RING Inside Diameter Outside Diameter B Width Shaft Approx. Slip Fit Press Fit PART Nominal Nominal Fillet Weight ISO g6 ISO m5 NUMBER 1) Min. Max. 1) Max. Min Max. (lbs) Max. Min. Max. Min. MS 5196 suffix IR 7315 D IR 7314 IR 7315 IR 7314 C IR 7315 C IR 734 IR 735 IR 7334 IR 7335 IR 7344 IR 7345 IR 7355 D IR 7355 D1 IR 7355D IR 7354 IR 7355 IR 8406 IR 8407 IR 8407 C1 IR 8446 IR 8447 IR 8446 C IR 8447 C IR 8447 C1 IR 8476 IR 8477 IR 8476 C IR 8477 C IR 8516 IR 8517 IR 8516 C IR 8517 C IR 8536 IR 8537 IR 9567 D IR 9567 IR /16 1 7/16 1 1/ 1 1/ 1 1/ 1 1/ 1 9/16 1 9/16 1 5/8 1 5/8 1 1/ 1 9/16 1 5/8 1 11/ /16 1 3/4 1 3/4 1 7/8 1 15/ /16 1/8 3/16 3/16 1/4 1/4 3/8 3/8 1/ 1/ 1/ 1/ 5/8 3/4 3/ /4 1 3/4 1 3/4 1 3/4 1 3/4 1 13/ /16 1 7/8 1 7/8 1 15/ /16 1/4 1/4 1/4 1/ 1/ 1/ 1/ 1/ 3/4 3/4 3/4 3/ /8 3 1/8 3 1/4 3 1/4 3 1/ All dimensions in inches These inner rings meet Military Standard MS ) Sorted by outside diameter. 11

14 Inner Rings INNER RING PART d Inside Diameter Nominal F Outside Diameter Nominal NUMBER Min. Max. 1) Max. Min. B Width r Shaft Fillet Max. Approx. Weight (lbs) RECOMMENDED SHAFT DIAMETER Slip Fit ISO g6 Press Fit ISO m5 1) Max. Min. Max. Min. MS 5196 suffix IR 9607 IR 9608 IR 9608 C IR 9647 IR 9648 IR 9648 C IR 9687 IR 9688 D IR 9688 IR 9688 C IR 9717 IR 9718 IR 978 IR 978 C1 IR 6768 IR 6769 IR 6769 C IR 6770 IR 6848 IR 6849 IR 6850 IR 6849 C IR 6918 IR 6919 IR 69 IR 695 IR 696 IR 6935 IR 6936 IR 35 IR 36 IR 45 IR 46 IR 56 IR 66 IR 76 15/16 15/ /8 3 1/8 3 1/4 3 3/8 3 1/4 3 3/8 3 1/ 3 1/ 3 1/ 3 1/ 3 3/4 3 3/4 3 3/4 3 7/8 3 3/ /4 4 1/ 4 1/ 4 3/ / 5 1/ / 6 1/ 7 7 1/ / 3 1/ 3 1/ 3 3/4 3 3/4 3 3/ /8 4 1/8 4 1/4 4 1/4 4 1/ 4 1/ 4 1/ 4 1/ / 5 1/ 5 3/ / 6 1/ 7 1/4 7 1/4 7 3/4 7 3/4 8 1/4 8 3/4 9 1/ All dimensions in inches These inner rings meet Military Standard MS ) Sorted by outside diameter. 1

15 IN SEARCH of MAXIMUM CAPACITY The RBC TJ TandemRoller Bearing What more capacity will do: The Tandem Roller Bearing (TJ-series) solutions. Increasing the number of rollers Full complement of rollers 13

16 Heavy Duty TJ TandemRoller Bearings TJ TandemRoller Bearing BEARING PART NUMBER 1) Nominal Fw Inside Diameter Min. Max. D Outside Diameter Max. Min. B Width r 1 Housing Fillet Max. Housing Shoulder Dia. +/ 1/64" Dynamic Capacity C (lbs.) Static Capacity C O (lbs.) 14 TJ TJ 7194 TJ TJ 714 TJ 715 TJ 735 TJ TJ 7519 TJ DTJ TJ 7314 TJ7315 TJ7354 TJ 7355 TJ 8446 TJ 8447 TJ 8476 TJ 8477 TJ 8516 TJ 8517 DTJ TJ TJ TJ 9608 TJ TJ TJ TJ 7531 TJ 6769 TJ 6770 DTJ TJ TJ 6849 TJ 6918 TJ 6919 DTJ TJ 696 TJ 6935 DTJ / /16 1 1/8 1 1/8 1 1/4 1 1/ 1 1/ 1 1/ 1 3/4 1 3/4 1/ 1/ 3/4 3/ /4 3 5/16 3 5/16 3 1/ 3 13/ /16 4 1/ 4 1/ 4 1/ 4 1/ / 5 1/ 5 1/ 6 6 1/ 8 All dimensions in inches. Inquire for sizes not listed /4 1 5/16 1 7/16 1 9/16 1 3/4 1 7/8 1/16 1/16 5/16 5/16 7/8 7/8 3 1/8 3 1/8 3 3/8 3 3/8 3 3/4 3 5/8 3 5/8 3 7/ /8 4 5/16 4 7/8 5 1/4 5 1/4 5 1/4 5 1/ 5 3/4 6 1/4 6 1/4 6 1/4 6 5/8 7 1/8 9 1/4 7,300 8,000 9,500 8,500 10,600 11,300 10,100 11,300 15,000 5,800 11,500 14,300 1,500 15,600 19,000,00 19,500,800 0,900 4,400 54,500 0,900,900 3,800 18,400 34,100 18,900 36,00 49,600 55,400 85,800 39,000 54,000 6,000 74,00 17,000 79,300 67,500 60,000 10,800 13,700 13,900 15,500 0,400,700 17,900 18,900 4,400 48,900 3,900 31,800 7,700 36,800 46,600 56,900 49,800 60,900 56,000 68, ,500 64,400 7,600 87,900 76, ,000 81,000 17, , ,000 36, , , ,000 13,000 45,000 39,000 00, ,000 See pages 10-1 for available inner rings. Inner rings must be ordered separately. 1) Prefix DTJ denotes a double row bearing.

17 Heavy Duty TJ TandemRoller Bearings DTJ Double Row TandemRoller Bearing Limit Speed (rpm) Recommended Shaft Diameter ISO h6, use with H7 hsg fit Max. Min. ISO f6, use with N7 hsg fit Max. Min. Min. Recommended Housing Bore Slip Fit ISO H7 Press Fit ISO N7 Max. Mean Fit Min. Max. Mean Fit BEARING PART NUMBER 1) 13,000 11,800 11,000 10,500 10,500 9,400 8,500 7,800 7,800 7,100 6,700 6,700 5,900 5,900 4,700 4,700 4,300 4,300 3,900 3,900 3,300 3,500 3,500 3,300 3,100 3,000,900,600,600,600,300,400,400,100,100 1,900,000 1,800 1, L.0015L.0015L.0017L T.0008T.0008T.0008T.0008T.0008T.0008T.0008T.0008T.0008T.0008T.0009T.0009T.0009T TJ TJ 7194 TJ TJ 714 TJ 715 TJ 735 TJ TJ 7519 TJ DTJ TJ 7314 TJ 7315 TJ 7354 TJ 7355 TJ 8446 TJ 8447 TJ 8476 TJ 8477 TJ 8516 TJ 8517 DTJ TJ TJ TJ 9608 TJ TJ TJ TJ 7531 TJ 6769 TJ 6770 DTJ TJ TJ 6849 TJ 6918 TJ 6919 DTJ TJ 696 TJ 6935 DTJ ) Location and number of lubricating holes may differ 15

18 TECHNICAL DATA 1. Introduction The methods, equations, and technical data presented in this section should be sufficient to select the correct bearings and estimate their performance for a wide range of applications. For applications with severe or unusual operating conditions, RBC is prepared to provide an in-depth analysis and recommend the most suitable bearing arrangement. Where standard bearings cannot be used, RBC can meet the application requirements with a special bearing design, specifically tailored for optimum performance.. Capacity and Fatigue Life of Roller Bearings DYNAMIC CAPACITY C [lbf,n], or basic load rating for a roller bearing is that calculated, constant, radial load, which a group of apparently identical bearings with a stationary outer ring can theoretically endure for a fatigue life of 10 6 revolutions of the inner ring. STATIC CAPACITY C O [lbf,n], or static load rating is that uniformly distributed static radial load, which produces a maximum theoretical contact stress of 4000 MPa (580,000 psi). FATIGUE LIFE, L 10 [rev, hrs], is a statistical measure of the life which 90% of a large group of apparently identical bearings will complete or exceed. For a single bearing, L 10 also refers to the life associated with 90% reliability. Median Life, L 50 is usually not more than five times L 10. The relationship between rating life, capacity and load is: (1) () The equations are valid in the range of approximately 100 hrs to 100,000 hrs of life. At the low end, extreme loads or speeds may adversely affect life, at the high end, metal fatigue may never be a factor in bearing service life..1 Required Bearing Load Capacity Solving eq.() for the dynamic capacity C, we find: Use for applications, where a bearing must last a certain number of hours under given load and speed conditions. Normally, bearings with rigidly mounted outer rings can support static loads up to the static capacity without detriment. The static load limit may also be used to evaluate momentary shock loads in dynamic applications and the maximum load at very slow rotation or oscillation, e.g.: (4) d is the bearing inside diameter [in]) (3) 16

19 . Adjustments to Bearing Capacity..1 Raceway Hardness The capacities given in the dimensional table are valid only if all load carrying bearing components are properly heat treated to a minimum hardness of HRc 58. The equivalent strength of material is approximately 300,000 psi. In applications without an inner ring, the shaft becomes an integral bearing component. If one or more bearing components possess a hardness of less than HRc 58, both dynamic and static capacities must be reduced by factors given in table 1. A hardness of less than HRc 40 is not recommended. The adjusted bearing capacities C and C O become Adjusted dynamic capacity: C = f HD * C (5) Adjusted static capacity: C O = f HS * C O (6).. Operating Temperature RBC roller bearings without seals and metallic cages are heat stabilized and may be used at operating temperatures between -40 F (-40 C) and +300 F (150 C) with no loss of capacity. Where applicable, temperature limits of seals, cage, and lubricant must be considered. Successful operation at higher temperatures requires a different heat treatment, which reduces hardness proportionally. Alternatively, more temperature resistant bearing materials can be substituted. Consult with RBC Engineering for recommendations and hot hardness factors. Hardness Hardness Dynamic Static HRc HV f HD f HS Table 1. Capacity reduction factors.3 Thrust Capacity of Radial Cylindrical Roller Bearings Depending on internal design and operating conditions, cylindrical roller bearings can support considerable thrust loads, which makes them suitable for use as locating bearings. The main design criterion is the length to diameter ratio of the roller itself. Bearings equipped with roller lengths more than.5 times the diameter are called needle roller bearings and should not be used to support thrust loads. The maximum permissible thrust load is given as a percent of the actual radial load applied and depends on speed and lubrication conditions. It is generally safe to allow a dynamic thrust load equal to 10% of the radial load. 17

20 .4 Adjustments to Fatigue Life If bearing design and operation deviate significantly from normal, it may be necessary to use additional factors to estimate the fatigue life L na L na = a 1 * a * a 3 * L 10 (7) where L na = adjusted rating life [hrs, rev] a 1 = reliability factor (see table ) a = material factor a 3 = user operating factor Reliability % L n Reliability Factor a 1 90 L L L L L L Table. Reliability Factors, a 1 The materials and bearing technology factor a = 1 for standard bearings. Adjustment factor a 3 takes into account unusual or extreme operating conditions such as shock loads, misalignment, and lubrication. RBC rollers are crowned to reduce the danger of roller end loading and to allow for misalignment of up to 4' (0.001 in/in). Greater misalignment or moment loading result in stress concentrations, which may reduce the rating life significantly. Consult with RBC for a detailed analysis. 3. Equivalent bearing speed and load 3.1 Mean effective bearing speed A mean effective bearing speed n e [rpm] must be calculated for bearings subject to variable loads and speeds within a duty cycle. It is the weighted average of all individual speed components. n e = ( n i * t i 100 ) (8) = n 1 * t Equivalent bearing load + n * t where n i = individual speed [rpm] t i = time interval in [%] of total time The general equation to compute the equivalent bearing load P e is: q P e = Σ( F q i * n i * t i n e * 100 ) (9) q = F i q * t i F q q = * t q F i * n i * t i + n e * 100 F * n * t n e * 100 In the special case of constant speed this equation reduces to: q P e = Σ( F q i * t ) i where q = 10/3 for roller bearings F i = individual radial load [lbf,n] (10) 18

21 If the bearing is subject to repeated shock or impact loads, the equivalent load P e or its individual components should be multiplied by a suitable shock load factor. The product of load and shock load factor should not exceed the bearing static capacity to prevent brinelling of raceways and rollers. Loading Shock Load Factor Uniform and constant 1.00 Variable and light shock 1.50 Vibration and moderate shock.00 Heavy and severe shock Limiting Speed Table 3. Load Modification Factors The limiting speed values in the dimensional tables apply to bearings lubricated with oil of proper viscosity, operating under low to medium load. Poor cooling conditions, bearing misalignment, and improper diametral bearing clearance will cause the bearing to heat up and reduce the maximum permissible speed. Grease lubricated bearings should not exceed 65% of the values given in the tables. The maximum speed of bearings with contacting lip seals is generally limited to a lip surface speed of 1000 ft/min. 5. Shaft & Housing Fits The dimensional tables list loose and interference fits for inner and outer rings. The correct fit depends on type and severity of the load. To prevent rotation and wear, the ring subject to rotating loads must be press fitted. This will be the inner ring in most applications. The ring subject to a stationary load may be loosely fitted. The housing interference fit ISO N7 given in the tables covers most applications with normal loads to 5% of dynamic capacity and light to moderate shock loads. Higher loads, or heavy shock loads, or thin-walled housings may require a tighter interference fit, e.g. ISO P7. Likewise, loads above 5% of dynamic capacity, or heavy shock loads, or a hollow shaft may require a shaft interference fit per ISO n6. To determine tolererances per P7 or n6, proceed as follows: The nominal housing bore is the maximum bearing outside diameter, the nominal shaft diameter is the maximum inner ring inside diameter. Find the nominal housing bore diameter or shaft diameter respectively in table 4 and add the tolerances to the nominal dimension. Nominal Upper & Lower Nominal Upper & Lower Bearing OD Tolerance Inner RingID Tolerance Range[in] ISO P7 Range[in] ISO n6 3/4-1 1/ / - 11/ / / /4-1 1/ / / /4-4 1/ / /4-4 1/ /8-9 3/ / /8-9 3/ / / Table 4. Housing tolerance P7 and shaft tolerance n6 19