Tapered Roller bearings
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- Ἐπαφρᾶς Μπουκουβαλαίοι
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1 Tapered Roller bearings
2 Tapered Roller Bearings. Type, Structure and Characteristics Tapered roller bearings are designed such that their conical rollers and raceways are arranged so that all elements of the roller and race way cones meet at a common apex on the bearing axis. (Refer to Fig.) The rolling elements perform the real rotating movement on the raceway; the synthesized force from the inner and outer ring raceways guides the rollers, pressing them to the large rib on the inner ring. Metric and inch series are considered standard and both systems are widely used. The inner ring, rollers and cage can be separated as a unit, or the CONE, from the outer ring, or the CUP. The cup and cone are called sub-units. Sub-unit dimensions for the nominal cup small inside diameter and bearing contact angle, as shown in Fig. 2, are standardized by ISO and ABMA and are compatible between sub-units. Double row and four row bearings are available in addition to single row bearings. Models and characteristics are shown in Tables and 2. Sub-unit dimensions 2α E E : Cup small inside diameter, nominal α : Bearing contact angle, nominal Fig. Fig.2 Table Structure and characteristics of double row tapered roller bearings Model Drawing Nominal number Characteristics Double row with vertex of contact angles outside of the bearing 43XXX 423XXX 430XXX 432XXX CRI These bearings are designed with one double row outer ring and two pairs of inner rings with rollers. Bearings are adjusted so that their internal clearance becomes the specified value, the parts which have the same serial numbers should be assembled according to the assembly codes. These bearings support radial and axial loads. Since the cone pressure apex is wide, bearings are suitable where moment loads are applied. These bearings have the same function as the back-to-back duplex arrangement of single row bearings. Double row with vertex of contact steep angles outside of the bearing CRI This bearing model has a larger and steeper contact angle than the double row with vertex of contact angles outside the bearing. These bearings are used when the axial load is large. Since these bearings are adjusted so that the internal clearance is a specified value (like the double row with vertex of contact angles outside of bearing) the parts which have the same serial numbers should be assembled according to the assembly codes. Double row with vertex of contact angles inside of the bearing 3230XX 323XX CRD These bearings are designed with one double row inner ring with rollers and two pairs of outer rings and an outer ring spacer. These bearings accept the radial and axial loads. Since the cone pressure apex is short, bearings are not suitable when the moment is applied. Since these bearings are adjusted so that the internal clearance is the specified value (like the double row with vertex of contact angles outside of bearing) the parts which have the same serial numbers should be assembled according to the assembly codes. Double row with vertex of contact steep angles inside of the bearing CRD This bearing model has a larger and steeper contact angle than the double row with vertex of contact angles inside the bearing. These bearings are used when the axial load is large or only axials are applied. Models without an outer ring spacer and with a key groove or notch on the inner ring (refer to the drawing) are also available. Consult NTN Engineering about this bearing's fit. These bearings may be pressurized by using a spring between the housing shoulder and outer ring end. B-89
3 Tapered Roller Bearings Table 2 Structure and characteristics of the four row tapered roller bearings Model Drawing Nominal numbers Characteristics Four row tapered roller bearing 6259XX 6230XX 623XX CRO These bearings are designed with two double row inner rings with rollers, one double row outer ring, two single outer ring and outer ring spacer/inner ring spacer. Bearings are adjusted so that their internal clearance becomes the specified value, the parts which have the same serial numbers should be assembled according to the assembly codes. The bearing is mainly used for the roll neck of rolling mill, and designed so as to become the maximum rating load for the allowable space in the roll neck part. The bearing uses the clearance-fit to make assemble and disassembley easier. For this purpose, bearings are designed with a helical groove on the inner ring bore to prevent wearing of the inner ring bore when creep occurs and uses the carbonized steel to prevent cracks on inner ring and improve the shock resistance. Please consult with NTN Engineering for fitting and bearing internal clearance. Four row tapered roller bearing enclosed type CRO LL Bearings are designed with oil seals on both side of the bearing which is the same as the four row tapered roller bearings. Please consult with NTN Engineering for fitting and bearing internal clearance. 2. Dimensional Accuracy/Rotation Accuracy Metric system bearings Table 3.4 (Page A-4) Inch system bearings Table 3.5 (Page A-6) 3. Recommended Fitting Metric system bearings Table 4.2 (Page A-24) Inch system bearings Table 4.5, 4.6 (Page A-27) 5. General Operating Cautions Slippage between the balls and raceways may occur when bearings are operated under small loads, or when the ratio between axial and radial loads of the duplexed bearings exceeds the value e, and may cause smearing. This is most apparent when using large size tapered roller bearings due to the large cage mass. Please consult NTN Engineering for further details. 4. Bearing Internal Clearance Metric system bearings Table 5.7 (Page A-32) Inch system bearings Table 5.9 (Page A-34) B-90
4 Tapered Roller Bearings Inch system sizes: Tapered Roller Bearings (Single row Double row) index Bearing number ABMA Page CONE / CUP Type 8573/8520 TS B /8520D+A TDO B /8520 TS B /8520D+A TDO B /8520 TS B- 8578/8520D+A TDO B /29820 TS B /29820D+A TDO B /29820 TS B /29820D+A TDO B /38820 TS B /38820 TS B /67920 TS B /67920D+A TDO B /67920 TS B /67920D+A TDO B /67920 TS B /67920D+A TDO B /8027 TS B /8027 TS B /8027 TS B /80325 TS B /80720 TS B /87 TS B /872D+A TDO B /87 TS B /872D+A TDO B /87 TS B /872D+A TDO B /9325 TS B /9325 TS B /9327D+A TDO B /9325 TS B /93727D+A TDO B /9325 TS B /9327D+A TDO B D/9325+A TDI B /9325 TS B /9327D+A TDO B /943 TS B /944D+A TDO B /943 TS B /944D+A TDO B /943 TS B /944D+A TDO B D/943+A TDI B /9640 TS B /9640D+A TDO B /9640 TS B /9640D+A TDO B-40 EE3089/370 TS B-09 EE309/370 TS B-09 EE309/37D+A TDO B-40 EE4080/460 TS B-07 Bearing number ABMA Page CONE / CUP Type EE4080/46D+A TDO B-38 EE7063/748 TS B-05 EE26096D/2650+A TDI B-6 EE26097/2650 TS B- EE26097/265D+A TDO B-42 EE26098/265D+A TDO B-42 EE26098/2650 TS B- EE27095/2735 TS B- EE27095/2736D+A TDO B-40 EE27097D/2735+A TDI B-6 EE28/2860 TS B-3 EE28/2860D+A TDO B-42 EE282/2860 TS B-3 EE2920X/2972 TS B-3 EE2920X/2920D+A TDO B-44 EE30902/3400 TS B-09 EE30902/340D+A TDO B-40 EE3400/3443 TS B- EE3400/3444D+A TDO B-42 EE3402/3443 TS B- EE3402/3444D+A TDO B-42 EE35D/3555+A TDI B-63 HH44642/HH4464 TS B-07 EE472/4798D+A TDO B-44 EE6300/6900 TS B-5 EE6300/690D+A TDO B-44 EE6363/6900 TS B-5 EE6363/690D+A TDO B-44 EE6400/6850 TS B-5 EE6400/6900 TS B-5 EE6400/690D+A TDO B-44 L6349/L630 TS B-5 L6349/L630D+A TDO B-44 L6349D/L630+A TDI B-63 EE70950/7450 TS B- EE70950/745D+A TDO B-42 EE70975/7450 TS B- EE70975/745D+A TDO B-40 EE70975D/7450+A TDI B-6 EE9250/92200 TS B-5 EE9250/9220D+A TDO B-46 EE29068/297 TS B-05 EE29068/2922 TS B-05 EE22025D/22575+A TDI B-6 EE22026/22575 TS B- EE22026/22576D+A TD0 B-42 EE222070/22227D+A TDO B-38 EE23400/23975 TS B-5 EE23400/23976D+A TDO B-46 EE2340D/23975+A TDI B-63 EE23462/23975 TS B-5 EE23462/23976D+A TDO B-46 HH23637/HH2365 TS B-05 HH23649/HH2360 TS B-05 Bearing number ABMA Page CONE / CUP Type HH23649/HH2365 TS B-05 HH23403/HH23400 TS B-05 HH23403/HH2340D+A TDO B-38 HH234048/HH23400 TS B-05 HH234048/HH2340D+A TDO B-38 EE23456/23423D+A TDO B-46 EE23456/23425 TS B-7 EE23456/23426D+A TDO B-46 EE23460/23423D+A TDO B-46 EE23460/23425 TS B-7 HM237532/HM23750 TS B-05 HM237532/HM23750D+A TDO B-38 HM237535/HM23750 TS B-05 HM237535/HM23750D+A TDO B-38 HM237542/HM23750 TS B-05 HM237542/HM23750D+A TDO B-38 HM237545/HM23750 TS B-07 HM237545/HM23753 TS B-07 HM237545/HM23750D+A TDO B-38 HM237546D/HM23750+A TDI B-6 H23840/H2380 TS B-05 H23848/H2380 TS B-05 H239640/H23960 TS B-07 H239640/H23962D+A TDO B-38 H239649/H23960 TS B-07 H239649/H23962 TS B-07 H239649/H23962D+A TDO B-38 H239649D/H23960+A TDI B-6 LM2449/LM240 TS B-07 LM2449/LM240D+A TDO B-38 M24547/M2450 TS B-07 M24543/M2450 TS B-07 M24543/M2450D+A TDO B-38 M24547/M2450D+A TDO B-38 M24549/M2450 TS B-07 M24549/M2450D+A TDO B-38 EE2470/ TS B-7 EE2470/242377D+A TDO B-46 H242649/H24260 TS B-07 H242649/H24260D+A TDO B-40 H242649D/H24260+A TDI B-6 EE24390/ TS B-9 EE24390/24325D+A TDO B-46 EE24392/ TS B-9 EE24392/24325D+A TDO B-48 EE24396/ TS B-9 EE24396/24325D+A TDO B-48 EE24480/ TS B-9 EE24480/244236D+A TDO B-46 M244249/M24420 TS B-09 M244249/M24420D+A TDO B-40 M244249D/M24420+A TDI B-6 H244849D/H24480+A TDI B-6 M246942/M24690 TS B-09 B-9
5 Tapered Roller Bearings Inch system sizes: Tapered Roller Bearings (Single row Double row) index Bearing number ABMA Page CONE / CUP Type M246949/M24690 TS B-09 H247535/H24750 TS B-07 H247535/H24750D+A TDO B-38 H247549/H24750 TS B-09 H247549/H24750D+A TDO B-40 LM247748D/LM24770+A TDI B-6 H24948/H249D+A TDO B-40 M249732/M24970 TS B-09 M249732/M24970D+A TDO B-40 M249734/M24970 TS B-09 M249734/M24970D+A TDO B-40 M249736/M24970 TS B-09 M249736/M24970D+A TDO B-40 M249748D/M24970+A TDI B-6 M249749/M24970 TS B- M249749/M24970D+A TDO B-42 HH249749/HH24990D+A TDO B-42 HH249949/HH24990 TS B- HH249949D/HH24990+A TDI B-6 M252337/M25230 TS B- HM252343/HM25230 TS B- HM252343/HM25230D+A TDO B-42 HM252344/HM25230D+A TDO B-42 M252349D/M25230+A TDI B-6 HM252348/HM25230 TS B- HM252348/HM25230D+A TDO B-42 HM252349/HM25230D+A TDO B-42 M252330/M25230 TS B-09 M252349/M25230 TS B-3 HH25549D/HH2550+A TDI B-6 M255449/M25540 TS B-3 M255449/M25540D+A TDO B-44 M255449D/M25540A+A TDI B-63 HM256849/HM25680 TS B-3 HM256849/HM25680D+A TDO B-44 HM256849D/HM25680+A TDI B-63 M25749D/M2570+A TDI B-63 M257248D/M25720+A TDI B-63 HH258248/HH25820 TS B-3 HH258248/HH25820D+A TDO B-44 LM258648D/LM25860+A TDI B-63 HM259048/HM25900 TS B-5 HM259049/HM25900D+A TDO B-44 HM259049D/HM25900+A TDI B-63 HM26049/HM2600 TS B-5 HM26049/HM2600D+A TDO B-44 HM26049D/HM2600+A TDI B-63 M262449D/M26240+A TDI B-63 HM262749/HM26270 TS B-5 HM262749/HM26270D+A TDO B-44 HM262749D/HM26270+A TDI B-63 HM262748/HM26270 TS B-5 LM26349D/LM2630+A TDI B-63 M263349D/M26330+A TDI B-63 Bearing number ABMA Page CONE / CUP Type HM265049/HM26500D+A TDO B-46 HM265049D/HM26500+A TDI B-63 HM265049/HM26500 TS B-5 HM266447/HM26640 TS B-7 HM266448/HM26640 TS B-7 HM266449/HM26640 TS B-7 HM266449/HM26640D+A TDO B-46 HM266446/HM26640 TS B-7 HM266446/HM26640D+A TDO B-46 HM266448/HM26640D+A TDO B-46 HM266449D/HM26640+A TDI B-63 M268730/M26870 TS B-7 HM268730/HM26870D+A TDO B-46 M268749/M26870 TS B-7 M268749/M26870D+A TDO B-46 M268749D/M26870+A TDI B-65 M270749/M27070 TS B-7 M270749/M27070D+A TDO B-46 M270749D/M27070+A TDI B-65 LM272235/LM27220 TS B-9 LM272249/LM27220 TS B-9 LM272249/LM27220D+A TDO B-46 LM272249D/LM27220+A TDI B-65 M272647D/M27260+A TDI B-65 M272749/M27270 TS B-9 M272749/M27270D+A TDO B-46 M272749D/M27270+A TDI B-65 M27449/M2740 TS B-9 M27449D/M2740+A TDI B-65 LM274449D/LM27440+A TDI B-65 EE275095/27555 TS B- EE275095/27556D+A TDO B-40 EE27500/27555 TS B- EE27500/27556D+A TDO B-42 EE27505/27555 TS B- EE27505/27556D+A TDO B-42 EE27508/27555 TS B-3 EE27508/27556D+A TDO B-42 EE27509D/27555+A TDI B-6 M275349D/M27530+A TDI B-65 M276449/M27640 TS B-9 M276449/M27640D+A TDO B-48 M276449D/M27640+A TDI B-65 M276448D/M27640+A TDI B-65 M278749/M27870 TS B-9 M278749/M27870D+A TDO B-48 M278749D/M27870+A TDI B-65 M280049D/M28000+A TDI B-67 M280349D/M28030+A TDI B-67 EE280626/28200 TS B-05 M28049D/M2800+A TDI B-67 L2848/L280 TS B-2 L2848/L280D+A TDO B-48 L2849D/L280+A TDI B-67 Bearing number ABMA Page CONE / CUP Type M28649D/M2860+A TDI B-67 LM28849D/LM2880+A TDI B-67 LM282549D/LM28250+A TDI B-67 LM283649/LM28360 TS B-2 LM283649D/LM A TDI B-67 M28448D/M284+A TDI B-67 M284249D/M28420+A TDI B-67 LM286249D/LM28620+A TDI B-67 LM287649D/LM28760+A TDI B-67 LM287849D/LM28780+A TDI B-67 EE2975/29750 TS B-3 EE2975/2975D+A TDO B-44 EE29200D/29750+A TDI B-6 EE2920/29750 TS B-3 EE2920/2975D+A TDO B-44 EE29250/29750 TS B-5 EE29250/2975D+A TDO B-44 EE29502/29593 TS B- EE29502/29592D+A TDO B-42 EE2950/29593 TS B-3 EE2950/29592D+A TDO B-42 EE3299D/32972+A TDI B-63 EE33337/33397 TS B-5 EE33337/333203D+A TDO B-44 EE33340/33397 TS B-5 EE33340/333203D+A TDO B-46 M348449/M34840 TS B- M349549/M34950 TS B- EE35070/35687 TS B-07 EE350750/35687 TS B-07 L357049/L35700 TS B-3 L357049/L35700D+A TDO B-44 LM36649/LM3660 TS B-5 LL365340/LL36530D+A TDO B-46 LL365348/LL36530 TS B-7 LM377449/LM37740 TS B-9 LM377449/LM37740D+A TDO B-48 LM377449D/LM37740+A TDI B-65 EE380080/38090 TS B-07 EE38008/38090 TS B-07 EE42075/42437 TS B-07 EE42075/4245D+A TDO B-38 EE420750D/42437+A TDI B-6 EE420800D/42437+A TDI B-6 EE42080/42437 TS B-07 EE42080/4245D+A TDO B-38 EE426200/ TS B-9 EE426200/42633D+A TDO B-48 EE430900/43575 TS B-09 EE430900/43576D+A TDO B-40 EE43502/43565 TS B- EE43502/43565D+A TDO B-42 HH437549/HH43750 TS B-05 LM446349/LM44630 TS B-09 B-92
6 Tapered Roller Bearings Inch system sizes: Tapered Roller Bearings (Single row Double row) index Bearing number ABMA Page CONE / CUP Type LM446349/LM44630D+A TDO B-40 EE45060/4522 TS B-05 EE45060/4525D+A TDO B D/4522 TDI B-6 LM45345/LM4530 TS B- LM45345/LM4530D+A TDO B-42 LM45349/LM4530 TS B- LM45349/LM4530D+A TDO B-42 LM45349D/LM4530+A TDI B-6 L467549/L46750 TS B-7 L476549/L47650 TS B-9 L476549/L47650D+A TDO B-48 LL48448/LL484 TS B-2 EE52630/52690 TS B-5 EE52630/5269D+A TDO B-44 EE52909D/52957+A TDI B-6 EE542220/ TS B-9 EE542220/54229D+A TDO B-48 HM542948/HM5429 TS B /5434 TS B /5435D+A TDO B /5448 TS B /5448 TS B /5454 TS B /54542D+A TDO B-44 LM545849/LM54580 TS B-09 EE54734D/ A TDI B-67 L555233/L55520 TS B-3 L555233/L55520D+A TDO B-42 L555249/L55520 TS B-3 L555249/L55520D+A TDO B-44 LL562749/LL56270 TS B-5 LM565943/LM56590 TS B-5 LM565949/LM56590 TS B-7 LM565949/LM56592 TS B-7 LL566848/LL56680 TS B-7 LM567949/LM56790 TS B-7 L570649/L57060 TS B-7 EE57703/ TS B-7 EE57703/57265D+A TDO B-46 LL575343/LL57530 TS B-9 LL575349/LL57530 TS B-9 EE62620/62632D+A TDO B-48 EE64092/ TS B-9 EE64092/64026D+A TDO B-48 EE649240/64930 TS B-2 EE649240/6493D+A TDO B-48 EE64924D/64930+A TDI B-67 LM654642/LM65460 TS B-3 LM654642/LM65460D+A TDO B-42 LM654648D/LM65460+A TDI B-63 LM654649/LM65460 TS B-3 LM654649/LM65460D+A TDO B-44 EE655270/ TS B-2 Bearing number ABMA Page CONE / CUP Type EE65527D/ A TDI B-67 LM665949/LM66590 TS B-7 LM665949/LM66590D+A TDO B-46 M667935/M6679 TS B-7 M667947D/M66790+A TDI B-65 M667948/M66790 TS B-7 EE6780/ TS B-9 EE6780/672875D+A TDO B / TS B-2 LL687949/LL68790 TS B-2 LL687949/LL68790D+A TDO B-48 EE7220/72285 TS B-3 EE7220/72286D+A TDO B-42 EE7225/72285 TS B-3 EE7225/72286D+A TDO B-44 EE72420/72495 TS B-3 EE72420/72496D+A TDO B-42 LM742745/LM74270 TS B-09 LM742745/LM74270D+A TDO B-40 LM742747/LM74270 TS B-09 LM742749/LM74270 TS B-09 LM742749/LM74270D+A TDO B-40 LM742749D/LM74270+A TDI B-6 EE743240/ TS B-2 EE743240/74332D+A TDO B-48 HM746646/HM74660 TS B-09 HM746646/HM74660D+A TDO B-40 EE752305/ TS B-2 EE755280/ TS B-2 EE755280/75536D+A TDO B-48 EE75528D/ A TDI B-67 EE755285/ TS B-2 EE755285/75536D+A TDO B-48 LM757049/LM75700 TS B-3 M757449D/M75740+A TDI B-63 LM76649D/LM7660+A TDI B-63 EE763330/76340 TS B-2 LM763449D/LM76340+A TDI B-63 LM767745D/LM76770+A TDI B-65 LM767749D/LM76770+A TDI B-65 LM769349D/LM76930+A TDI B-65 L770847D/L77080+A TDI B-65 L770849D/L77080+A TDI B-65 LM770949/LM77090 TS B-9 LL77948/LL779 TS B-9 LM772748/LM77270 TS B-9 LM772748/LM77270D+A TDO B-48 LM772749D/LM77270+A TDI B-65 EE776420/ TS B-2 EE776430/ TS B-2 LL77849/LL7780 TS B-9 LM778549D/LM77850+A TDI B-65 LL788345/LL78830 TS B-2 LL788349/LL78830 TS B-2 Bearing number ABMA Page CONE / CUP Type EE7904/79022 TS B-3 EE79020/79022 TS B-5 EE83360X/ TS B-7 EE83360XD/ A TDO B-65 HH840249/HH84020 TS B-07 EE843220/ TS B-9 EE843220/84329D+A TDO B-48 EE843220D/ A TDI B-65 H852849/H85280 TS B-3 L853049/L85300 TS B-3 L860048/L86000 TS B-5 L860049/L86000 TS B-5 L865547/L86552 TS B-5 LM869448/LM86940 TS B-7 LM869448/LM86940D+A TDO B-46 LM869449D/LM86940+A TDI B-65 L879946/L87990 TS B-2 L879947/L87990 TS B-2 LL889049/LL88900 TS B-2 LL889049/LL88900D+A TDO B-48 EE9600/92400 TS B-7 EE9600/9240D+A TDO B-46 EE923095/92375 TS B- EE923095/92376D+A TDO B-40 HH926744/HH92670 TS B-05 HH926744/HH92676 TS B-05 HH926749/HH92670 TS B-05 HH93232/HH9320 TS B-05 HH93245/HH9320 TS B-05 HH93245/HH9325 TS B-05 H936340/H93630 TS B-05 H936340/H93636 TS B-05 H936349/H93630 TS B-05 EE94205/94950 TS B-3 HH949549/HH94950 TS B-09 HH949549/HH94950D+A TDO B-40 HH953749/HH95370 TS B- HH953749/HH95370D+A TDO B-42 LM96548/LM965D+A TDO B-44 LM96548/LM965 TS B-5 H96649/H9660 TS B-5 H96649/H9660D+A TDO B-44 EE97354/97200 TS B-5 EE97354/97202D+A TDO B-44 B-93
7 Tapered Roller Bearings Inch system sizes: Tapered Roller Bearings (Four Row) index Bearing number ABMA Page CONE / CUP Type T-8576D/8520/8520D TQO B D/9920/9920D TQO B-83 T-4679D/46720/4672D TQO B-8 T-48290D/48220/48220D TQO B-8 T-48393D/48320/48320D TQO B-8 T-48680D/48620/48620D TQO B D/67720/6772D TQO B-83 T-67885D/67820/67820D TQO B-83 T-67986D/67920/67920D TQO B D/8962/8963D TQO B D/82620/82620D TQO B-83 EE26096D/2650/265D TQO B-85 EE27097D/2737/2737D TQO B-85 EE32082D/3225/3226D TQO B-83 EE3402D/3443/3444D TQO B-85 EE35D/3555/3556D TQO B-87 L6349D/L630/L630D TQO B-9 EE7000D/7450/745D TQO B-85 EE8455D/82350/8235D TQO B-9 EE22027D/22575/22576D TQO B-85 M224749D/M22470/M22470D TQO B-8 T-M23649D/M2360/M2360D TQO B-8 EE2346D/23425/23426D TQO B-9 M238849D/M23880/M23880D TQO B-83 M240648D/M2406/M2406D TQO B-83 M24538D/M2450/M2450D TQO B-83 EE2448D/244235/244236D TQO B-93 T-M244249D/M24420/M24420D TQO B-85 LM247748D/LM24770/LM24770D TQO B-85 T-M249748D/M24970/M24970D TQO B-85 T-M252349D/M25230/M25230D TQO B-87 HM252349D/HM25230/HM25230D TQO B-85 M255449D/M25540/M25540D TQO B-87 HM256849D/HM25680/HM25680DG2 TQO B-87 M25749D/M2570/M2570D TQO B-87 Bearing number ABMA Page CONE / CUP Type M257248D/M25720/M25720D TQO B-89 LM258649D/LM25860/LM25860D TQO B-89 T-HM259049D/HM25900/HM25900D TQO B-89 HM26049D/HM2600/HM2600DA TQO B-89 M262449D/M26240/M26240DG2 TQO B-89 T-HM262749D/HM26270/HM26270DG2 TQO B-89 LM26349D/LM2630/LM2630D TQO B-9 M263349D/M26330/M26330D TQO B-9 HM265049D/HM26500/HM26500DG2 TQO B-9 HM266449D/HM26640/HM26640DG2 TQO B-9 M268749D/M26870/M26870DG2 TQO B-93 M270749D/M27070/M27070DG2 TQO B-93 LM272249D/LM27220/LM27220DG2 TQO B-93 M27449D/M2740/M2740DG2 TQO B-95 LM274449D/LM27440/LM27440D TQO B-95 EE27506D/27555/27556D TQO B-85 EE27509D/27560/2756D TQO B-87 M275349D/M27530/M27530DG2 TQO B-95 M276449D/M27640/M27640DG2 TQO B-95 M278749D/M27870/M27870DG2 TQO B-95 LM278849D/LM27880/LM27880D TQO B-95 M280049D/M28000/M28000DG2 TQO B-97 M280349D/M28030/M28030DG2 TQO B-97 EE280700D/28200/2820D TQO B-83 L2849D/L280/L280DG2 TQO B-97 M28649D/M2860/M2860DG2 TQO B-97 LM28849D/LM2880/LM2880DG2 TQO B-97 M282249D/M28220/M28220D TQO B-97 M283449D/M28340/M28340D TQO B-99 LM283649D/LM28360/LM28360DG2 TQO B-99 M28448D/M284/M2840DG2 TQO B-99 M284249D/M28420/M28420DG2 TQO B-99 M285848D/M28580/M28580D TQO B-99 LM286249D/LM28620/LM28620DG2 TQO B-99 LM287649D/LM28760/LM28760DG2 TQO B-99 B-94
8 Tapered Roller Bearings Inch system sizes: Tapered Roller Bearings (Four Row) index Bearing number ABMA Page CONE / CUP Type LM288949D/LM28890/LM28890D TQO B-99 EE29202D/29750/2975D TQO B-87 EE3299D/32972/32973D TQO B-87 LM377449D/LM37740/LM37740DG2 TQO B-95 T-LM45349D/LM4530/LM4530D TQO B-85 EE52226D/523087/523088D TQO B-95 EE5263D/52690/5269D TQO B-89 EE5320D/53300/5330XDG2 TQO B-95 EE54734D/547480/54748DG2 TQO B-99 Bearing number ABMA Page CONE / CUP Type LM778549D/LM77850/LM77850DG2 TQO B-95 EE8220D/82275/82276D TQO B-85 EE8336D/833232/833233D TQO B-93 EE84322D/843290/84329D TQO B-95 T-LM869449D/LM86940/LM86940DG2 TQO B-93 EE9603D/92400/9240D TQO B-93 EE9250D/92875/92876D TQO B-87 EE9370D/93250/9325XDG2 TQO B-93 EE97355D/97200/97203D TQO B-89 T-EE64093D/640260/64026DG2 TQO B-93 EE64924D/64930/6493DG2 TQO B-97 T-LM654644D/LM65460/LM65460D TQO B-87 T-LM654648D/LM65460/LM65460D TQO B-87 LM665949D/LM66590/LM66590D TQO B-9 EE65527D/655345/655346DG2 TQO B-97 M667947D/M6679/M6679DG2 TQO B-93 EE700090D/70067/70068D TQO B-85 EE722D/72285/72286D TQO B-87 EE7242D/72495/72496DG2 TQO B-89 EE73673D/736238/736239D TQO B-93 EE73779D/737260/737260D TQO B-93 T-LM742749D/LM74274/LM74274D TQO B-83 EE755280D/755360/75536DG2 TQO B-97 EE75528D/755360/75536DG2 TQO B-97 M757448D/M75740/M75740D TQO B-87 M757449D/M75740/M75740D TQO B-89 LM76648D/LM7660/LM7660D TQO B-89 LM76649D/LM7660/LM7660D TQO B-89 LM763449D/LM76340/LM76340DG2 TQO B-9 LM76549D/LM7650/LM7650D TQO B-9 LM767745D/LM76770/LM76770DG2 TQO B-9 LM767749D/LM76770/LM76770DG2 TQO B-9 LM769349D/LM76930/LM76930D TQO B-93 L770849D/L77080/L77080DG2 TQO B-93 LM772749D/LM77270/LM77270DA TQO B-95 B-95
9 Single Row Tapered Roller Bearings Metric system sizes r T C D B r d a d 00 20mm Boundary dimensions Basic load ratings Bearing dynamic static dynamic static numbers mm kn kgf d D T B C r s min r ls min C r C or C r C or ,300 2, XU ,950 6, ,300 28, XU ,800 39, U ,300 34, U ,500 47, U ,500 5, U ,000 40, ,000 44, XU ,500 78, U ,800 22, XA ,500 34, XU ,000 43, U ,300 38, U ,500 55, U ,500 54, U ,000 43, ,000 47, XU ,500 84, U ,000 23, XA ,000 39, XU ,400 5, U ,000 44, U ,000 62, U ,000 60, U ,500 47, ,000 54, XU ,000 98, U ,500 84, ,500 30, XU ,000 20, ,000 43, XU ,500 48, U ,000 69, U ,000 7, U ,500 56, Minimal allowable dimension for chamfer dimension r or r. 2 This bearing does not incorporate the subunit dimensions. 20 B-96
10 Single Row Tapered Roller Bearings Sa Sb Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y e Fr Fr e X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg d a d b D a D b S a S b r as r as min max max min min min min max max a e Y 2 Y o (approx.) B-97
11 Single Row Tapered Roller Bearings Metric system sizes r T C D B r d a d 20 60mm Boundary dimensions Basic load ratings Bearing dynamic static dynamic static numbers mm kn kgf d D T B C r s min r ls min C r C or C r C or ,500 67, XU ,30 83,000 6, U ,800 36, XU ,500 25, ,500 55, XU ,000 5, U ,000 83, U ,000 84, U ,500 79, XU ,240 9,000 26, ,400 38, XU ,500 59, XU ,000 58, U ,000 49, ,500 94, U ,000 97, U ,000 80, ,000 92, XU ,370 0,000 40, ,300 50, XU ,500 67, XU ,000 6, U ,070 7,500 09, U ,070 84,000 09, U ,500 89, ,030 79,000 05, XU ,60,750 9,000 79, ,200 53, XU ,500 80, XU ,500 73, U ,420 90,500 45, U ,200 93,500 22, U ,000 99, ,230,840 26,000 88, Minimal allowable dimension for chamfer dimension r or r. 2 This bearing does not incorporate the subunit dimensions. B-98
12 Single Row Tapered Roller Bearings Sa Sb Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y e Fr Fr e X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg d a d b D a D b S a S b r as r as min max max min min min min max max a e Y 2 Y o (approx.) B-99
13 Single Row Tapered Roller Bearings Metric system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings Bearing dynamic static dynamic static numbers mm kn kgf d D T B C r s min r ls min C r C or C r C or ,200 57, XU ,000 9, XU ,000 86, U ,000,600 02,000 63, U ,00,320 03,000 35, U ,00 86,000 3, ,30,940 33,000 98, ,000 7, XU ,70 66,000 9, XUE ,000 9, U ,030,690 05,000 72, U ,90 93,000 2, ,440 2,50 47,000 29, ,000 72, XU ,600 53, ,20 67,000 24, XUE ,000 73,000 02, U ,50,850 7,000 89, U ,000,670 02,000 7, ,200 95,000 23, ,590 2,390 62, , ,000 9, XUE ,470 8,500 49, XUE ,0 80,000 3, U ,320 2,30 34,000 27, U ,50,970 8,000 20, ,050,370 07,000 40, ,740 2,650 78, , ,000 97, XUE ,500 68, E ,690 94,000 73, XU ,220 83,000 24, ,390 2,40 42, , ,260,690 29,000 72, ,020 3, ,000 35, Minimal allowable dimension for chamfer dimension r or r. 2 This bearing does not incorporate the subunit dimensions. 220 B-00
14 Single Row Tapered Roller Bearings Sa Sb Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y e Fr Fr e X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg d a d b D a D b S a S b r as r as min max max min min min min max max a e Y 2 Y o (approx.) B-0
15 Single Row Tapered Roller Bearings Metric system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings Bearing dynamic static dynamic static numbers mm kn kgf d D T B C r s min r ls min C r C or C r C or ,000 50,000 02, XUE ,760 95,000 79, XU ,480 99,500 5, ,700 2,750 74, , ,480 2,000 5, , ,330 3, , , ,430 72,000 46, XUE ,200 2,270 23,000 23, XU ,70,80 9,000 85, ,880 3,350 92, , ,520 74,000 55, XUE ,220 2,350 25, , XU ,240,90 26,000 95, ,980 3, , , ,250 5, , , ,00 2,090 03,000 23, XUE ,490 2,830 52, , XU ,420 2,220 45, , ,300 4,00 235, , ,00 2,50 03,000 29, XUE ,880 88,000 92, E ,520 2,940 55, , XU ,660 2,580 70, , ,620 4, , , ,040 2,270 06, , XUE ,980 93,000 20, E ,650 3,50 69, , ,050 2,330 07, , XUE ,740 3,300 78, , ,40 2,500 6, , ,920 3,800 96, , Minimal allowable dimension for chamfer dimension r or r. 2 This bearing does not incorporate the subunit dimensions. B-02
16 Single Row Tapered Roller Bearings Sa Sb Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y e Fr Fr e X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg d a d b D a D b S a S b r as r as min max max min min min min max max a e Y 2 Y o (approx.) B-03
17 Single Row Tapered Roller Bearings Metric system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings Bearing dynamic static dynamic static numbers mm kn kgf d D T B C r s min r ls min C r C or C r C or ,200 2,70 22, , ,80 4, , , ,230 2,840 25, , ,280 4, , , ,600 3,450 64, , ,530 5, ,000 50, ,330 3,300 4, ,000 CR ,00 6,950 35, ,000 CR ,540 3,800 57, ,000 CR ,080 88,000 22,000 CR ,870 5, , ,000 CR ,300 3,450 32, ,000 CR ,370 3,700 40, ,000 CR-4803, ,620 5, , ,000 CR ,20 6,600 26, ,000 CR-5602, ,880 7,00 294, ,000 CR-700 Minimal allowable dimension for chamfer dimension r or r. 2 This bearing does not incorporate the subunit dimensions. Remarks:. Bearing numbers marked designate bearing with hollow rollers and pin type cages. B-04
18 Single Row Tapered Roller Bearings Sa Sb Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y e Fr Fr e X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg d a d b D a D b S a S b r as r as min max max min min min min max max a e Y 2 Y o (approx.) ,092,026.5, B-05
19 Single Row Tapered Roller Bearings Inch system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings dynamic static dynamic static mm kn kgf d D T B C C r C or C r C or ,500 99, ,500 99, ,500 99, ,90 89,500 22, ,20 83,500 5, ,90 89,500 22, ,90 89,500 22, ,00,390 03,000 42, ,20 83,500 5, ,20 83,500 5, ,30 89,500 33, ,00,390 03,000 42, ,260 89,000 29, ,260 89,000 29, ,000 79, ,070 69,000 09, ,40 86,500 7, ,000 97, ,070 69,000 09, ,480 94,500 5, ,060,50 08,000 54, ,260 89,000 29, ,000 97, ,070 69,000 09, ,330 83,000 36, ,330 83,000 36, ,480 94,500 5,000 Remarks:. With regard to the chamfer dimensions on the back face of the inner and outer rings, installation dimensions ras and ras are larger than the maximum value B-06
20 Single Row Tapered Roller Bearings Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y Fr e e Fr X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Bearing numbers Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg r as r as d a d b D a D b max max a e Y 2 Y o (approx.) T-HH926744/HH T-HH926744/HH T-HH926749/HH T-HH23637/HH T-HH93232/HH T-HH23649/HH T-HH23649/HH T-HH23403/HH T-HH93245/HH T-HH93245/HH T-EE45060/ T-HH234048/HH T-H936340/H T-H936340/H EE280626/ T-HM237532/HM EE7063/ T-94649/ T-HM237535/HM T-H23840/H T-HH437549/HH T-H936349/H T-94687/ T-HM237542/HM T-EE29068/ T-EE29068/ T-H23848/H " " means that load center at outside on end of inner ring. B-07
21 Single Row Tapered Roller Bearings Inch system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings dynamic static dynamic static mm kn kgf d D T B C C r C or C r C or ,000 97, ,070 69,000 09, ,070 69,000 09, ,400 94,500 42, ,90,60 22,000 65, ,60 63,000 8, ,000 63, ,400 94,500 42, ,400 94,500 42, ,000 63, ,60 63,000 8, ,030,830 05,000 87, ,600 99,500 64, ,90,60 22,000 65, ,000 63, ,030 54,500 05, ,60 63,000 8, ,460 2,730 49, , ,340 2,020 37, , ,000 70, ,000 80, ,030 54,500 05, ,60 63,000 8, ,460 92,000 49, ,600 99,500 64, ,480 98,000 5, ,30,860 34,000 90, ,030 54,500 05, ,000 80, ,0 2,030 3, , ,30,860 34,000 90,000 Remarks:. With regard to the chamfer dimensions on the back face of the inner and outer rings, installation dimensions ras and ras are larger than the maximum value. 2. Bearing numbers marked " " designate bearing with hollow rollers and pin type cages. B-08
22 Single Row Tapered Roller Bearings Da db ra ra da Db Equivalent bearing load dynamic Pr XFr Y Fr e e Fr X Y X Y Y2 static Por 0.5Fr Yo When Por Fr use Por Fr For values of e, Y2 and Yo see the table below. Bearing numbers Abutment and fillet dimensions Load Constant Axial Mass center load factors mm mm kg r as r as d a d b D a D b max max a e Y 2 Y o (approx.) T-94700/ T-HM237545/HM T-HM237545/HM T-H239640/H EE35070/ T-93708/ T-87737/ T-H239649/H T-H239649/H T-87750/ T-93750/ T-HH840249/HH T-EE42075/ EE350750/ T-87762/ T-M24543/M T-93787/ T-H247535/H HH44642/HH LM2449/LM T-67983/ T-M24547/M T-93800/ T-HM542948/HM T-EE42080/ EE4080/ T-EE380080/38090G T-M24549/M T-67985/ T-H242649/H T-EE38008/38090G " " means that load center at outside on end of inner ring. B-09
23 Single Row Tapered Roller Bearings Inch system sizes r T C D B r d a d mm Boundary dimensions Basic load ratings dynamic static dynamic static mm kn kgf d D T B C C r C or C r C or ,000 80, ,60 63,000 8, ,500 83, ,500 83, ,00 4, ,500 83, ,220 63,500 25, ,240 87,000 26, ,240 87,000 26, ,000 44, ,500 97, ,270 65,500 30, ,260 73,000 28, ,240 73,500 27, ,640 83,000 68, ,620 96,500 66, ,570 2,260 6,000 23, ,000 44, ,40 72,500 44, ,640 83,000 68, ,500 83, ,000 95, ,500 97, ,270 65,500 30, ,790 90,500 83, ,460 2,730 49, , ,40 72,500 44, ,640 83,000 68,000 Remarks:. With regard to the chamfer dimensions on the back face of the inner and outer rings, installation dimensions ras and ras are larger than the maximum value. 2. Bearing numbers marked " " designate bearing with hollow rollers and pin type cages. B-0
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