Tapered Roller Bearings - TDI (Tapered Double Inner)

74512D/74850W bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	74512D/74850W
Series：	4.0000 in101.600 mm
r - Cup Backface "To Clear" Radius²：	74000
Design Units：	0.060 in1.50 mm
Db - Cup Backface Backing Diameter：	Spacer shows standard nominal .01 radii, actual bearing may vary
da - Cone Frontface Backing Diameter：	Imperial

Series	74000
Cone Part Number	74512D
Cup Part Number	74850W
Design Units	Imperial
Bearing Weight	31.70 lb14.4 Kg
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	5.1250 in130.175 mm
D - Cup Outer Diameter	8.5000 in215.900 mm
B - Double Cone Width	4.0000 in101.600 mm
C - Cup Width	1.3750 in34.925 mm
T - Bearing Width across Cups	4.0000 in101.600 mm
R - Cone Frontface "To Clear" Radius¹	0.060 in1.50 mm
r - Cup Backface "To Clear" Radius²	0.130 in3.3 mm
da - Cone Frontface Backing Diameter	5.75 in146.10 mm
Db - Cup Backface Backing Diameter	7.72 in196.10 mm
Ab - Cage-Cone Frontface Clearance	0.11 in2.8 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	22300 lbf99000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	150000 lbf665000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	38800 lbf172000 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	18600 lbf82600 N
K - Factor⁷	1.2
e - ISO Factor⁸	0.49
Y1 - ISO Factor⁹	1.38
Y2 - ISO Factor¹⁰	2.06
G1 - Heat Generation Factor (Roller-Raceway)¹¹	363
G2 - Heat Generation Factor (Rib-Roller End)	68.5
Cg - Geometry Factor¹²	0.134
Note	Spacer shows standard nominal .01 radii, actual bearing may vary

No.	Series	r - Cup Backface "To Clear" Radius²	Design Units	Db - Cup Backface Backing Diameter	da - Cone Frontface Backing Diameter	D - Cup Outer Diameter
7406 FY	30	1.000	1.500	9700	7300	7406FY
23064KEJW507C08	2.86	4.36	2.93	23064KCJW507C08	1000	880
52387D/52618	3.1561 in80.165 mm	52000	0.030 in0.80 mm	Spacer shows standard nominal .01 radii, actual bearing may vary	Imperial	6.1875 in157.163 mm
SIL 60 ES-2LS	400.00	245.00	137.000	60.000	39.000	44.000
6203/ZZ/C2	0.070 Kg	0.600 mm	12.000 mm	40.000 mm	25000 rpm	17000 rpm
7038DF FY	190	1.1	2.1	2300	1800	7038DFFY
23124KEMW33C3	2.32	3.54	2.38	2600	2200	2.00 mm0.080 in
22212EJC3	2.78	4.23	2.84	22212CJC3	5500	4400
BSS1530-2E	BSS1530-2E	-	-	-	-	-
7003CDT FY	17	0.3	7003CDT FY	33000	25000	35

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