The Timken Company - Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)

Smarter Bearing Selection Is Here

The Timken^® Syber^® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

Learn More

Analyze Bearing Performance in an Application with Timken^® Syber^® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More

Batch CAD Cart (0) ▾

Request Information Advanced Search Add to CAD Cart

Unit of Measure

Items	JW4549 - JW4510 (K983135 - K998908) Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)	JLM104948 - JLM104910 (LM104948XS - LM104910ES) Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)	JM205149 - JM205110 (M205149XS - M205110ES) Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)	JHM807045 - JHM807012 (HM807045XS - HM807012ES) Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)	JLM506849 - JLM506810 (LM506849XS - LM506810ES) Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)
Cone Part Number	N/A JW4549	N/A JLM104948	N/A JM205149	N/A JHM807045	N/A JLM506849
Cup Part Number	N/A JW4510	N/A JLM104910	N/A JM205110	N/A JHM807012	N/A JLM506810
Inner Spacer Part Number	N/A K983135	N/A LM104948XS	N/A M205149XS	N/A HM807045XS	N/A LM506849XS
Outer Spacer Part Number	N/A K998908	N/A LM104910ES	N/A M205110ES	N/A HM807012ES	N/A LM506810ES
Snap Ring Part Number	N/A K928956	N/A K444653R	N/A K516778R	N/A K518781R	N/A K516778R
d - Bore	N/A 45 mm1.7717 in	N/A 50 mm1.9685 in	N/A 50 mm1.9685 in	N/A 50 mm1.9685 in	N/A 55 mm2.1654 in
D - Cup Outer Diameter	N/A 95 mm3.7402 in	N/A 82.000 mm3.2283 in	N/A 90 mm3.5433 in	N/A 105 mm4.1339 in	N/A 90 mm3.5433 in
T - Width	N/A 64 mm2.5197 in	N/A 49 mm1.9291 in	N/A 62 mm2.4409 in	N/A 80 mm3.1496 in	N/A 52 mm2.0472 in
C - Width	N/A 46 mm1.811 in	N/A 39.425 mm1.5522 in	N/A 51.438 mm2.0251 in	N/A 63.54 mm2.5016 in	N/A 42.504 mm1.6734 in
R - Cone Backface "To Clear" Radius¹	N/A 2.540 mm0.1 in	N/A 3.050 mm0.12 in	N/A 3.050 mm0.12 in	N/A 3.050 mm0.12 in	N/A 1.520 mm0.06 in
r - Cup Backface "To Clear" Radius²	N/A 0.3 mm0.010 in	N/A 0.40 mm0.020 in	N/A 0.5 mm0.020 in	N/A 0.8 mm0.030 in	N/A 0.5 mm0.020 in
db - Cone Backface Backing Diameter	N/A 64 mm2.52 in	N/A 61 mm2.4 in	N/A 63 mm2.48 in	N/A 69 mm2.72 in	N/A 65 mm2.56 in
Da - Cup Frontface Backing Diameter	N/A 90.90 mm3.58 in	N/A 78.00 mm3.11 in	N/A 85.10 mm3.39 in	N/A 100.10 mm3.96 in	N/A 86.40 mm3.40 in
C90 - Dynamic Radial Rating (90 million revolutions)³	N/A 30700 N6900 lbf	N/A 25000 N5610 lbf	N/A 38000 N8540 lbf	N/A 52700 N11900 lbf	N/A 28200 N6340 lbf
C1 - Dynamic Radial Rating (1 million revolutions)⁴	N/A 206000 N46300 lbf	N/A 168000 N37700 lbf	N/A 255000 N57400 lbf	N/A 354000 N79600 lbf	N/A 190000 N42600 lbf
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁵	N/A 45500 N10200 lbf	N/A 13000 N2930 lbf	N/A 21400 N4810 lbf	N/A 44000 N9890 lbf	N/A 19400 N4370 lbf
C90₍₂₎ - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁶	N/A 53400 N12000 lbf	N/A 43500 N9770 lbf	N/A 66200 N14900 lbf	N/A 91800 N20600 lbf	N/A 49100 N11000 lbf
K - Factor⁷	N/A 0.67	N/A 1.91	N/A 1.78	N/A 1.2	N/A 1.45
e - ISO Factor⁸	N/A 0.87	N/A 0.31	N/A 0.33	N/A 0.49	N/A 0.4
Y1 - ISO Factor⁹	N/A 0.78	N/A 2.21	N/A 2.05	N/A 1.38	N/A 1.68
Y2 - ISO Factor¹⁰	N/A 1.16	N/A 3.29	N/A 3.06	N/A 2.06	N/A 2.5
¹ These maximum fillet radii will be cleared by the bearing corners. ² These maximum fillet radii will be cleared by the bearing corners. ³ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values. ⁴ Based on 1 x 10⁶ revolutions L₁₀ life, for the ISO life calculation method. ⁵ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values for a single-row, C₉₀₍₂₎ is the two-row radial value. ⁶ Based on 90 x 10⁶ revolutions L₁₀ life, for The Timken Company life calculation method. C₉₀ and C_a90 are radial and thrust values for a single-row, C₉₀₍₂₎ is the two-row radial value. ⁷ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁸ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ⁹ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. ¹⁰ These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.