The Timken Company - Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Unit of Measure

Items	07100D - 07210X Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial	07100D - 07196 Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial	07100D - 07204 Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial	07100D - 07205 Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial	07100D - 07205X Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
Series	N/A 7000
Cone Part Number	N/A 07100D
Cup Part Number	N/A 07210X	N/A 07196	N/A 07204	N/A 07205	N/A 07205X
d - Bore	N/A 1 in25.40 mm
D - Cup Outer Diameter	N/A 2 in50.8 mm	N/A 1.9687 in50.005 mm	N/A 2.047 in51.994 mm	N/A 2.0472 in51.999 mm	N/A 2.0467 in51.986 mm
B - Double Cone Width	N/A 1.4375 in36.513 mm
C - Cup Width	N/A 0.5000 in12.700 mm	N/A 0.3750 in9.525 mm	N/A 0.5000 in12.700 mm	N/A 0.5000 in12.700 mm	N/A 0.5118 in13.000 mm
Design Unit	N/A Inch
T - Bearing Width across Cups	N/A 1.1841 in30.076 mm	N/A 1.0648 in27.046 mm	N/A 1.1841 in30.076 mm	N/A 1.1841 in30.076 mm	N/A 1.2816 in32.553 mm
R - Cone Backface "To Clear" Radius¹	N/A 0.03 in0.800 mm
r - Cup Backface "To Clear" Radius²	N/A 0.06 in1.52 mm	N/A 0.04 in1.02 mm	N/A 0.050 in1.27 mm	N/A 0.08 in2.03 mm	N/A 0.06 in1.52 mm
da - Cone Frontface Backing Diameter	N/A 1.18 in30 mm
Db - Cup Backface Backing Diameter	N/A 1.75 in44.45 mm	N/A 1.75 in44.45 mm	N/A 1.77 in44.96 mm	N/A 1.75 in44.45 mm	N/A 1.75 in44.45 mm
Ab - Cage-Cone Frontface Clearance	N/A -0.07 in-1.8 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	N/A 1700 lbf7550 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	N/A 11400 lbf50700 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	N/A 2950 lbf13100 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	N/A 1170 lbf5190 N
K - Factor⁷	N/A 1.45
e - ISO Factor⁸	N/A 0.4
Y1 - ISO Factor⁹	N/A 1.68
Y2 - ISO Factor¹⁰	N/A 2.5
G1 - Heat Generation Factor (Roller-Raceway)	N/A
G2 - Heat Generation Factor (Rib-Roller End)	N/A
Cg - Geometry Factor¹¹	N/A 0.0509
Bearing Weight	N/A 0.6 lb0.3 Kg	N/A 0.6 lb0.3 Kg	N/A 0.7 lb0.3 Kg	N/A 0.7 lb0.3 Kg	N/A 0.7 lb0.3 Kg
Cage Material	N/A Stamped Steel
Note	N/A Spacer shows standard nominal .01 radii, actual bearing may vary
Full Timken Part Number	N/A
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. ¹¹ Geometry constant for Lubrication Life Adjustment Factor a3l.