Tapered Roller Bearings - TDI (Tapered Double Inner)

378DW/372A bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	378DW/372A
Series：	2.0939 in53.185 mm
r - Cup Backface "To Clear" Radius²：	375
Design Units：	0.030 in0.80 mm
Db - Cup Backface Backing Diameter：	Spacer shows standard nominal .01 radii, actual bearing may vary
da - Cone Frontface Backing Diameter：	Imperial

Series	375
Cone Part Number	378DW
Cup Part Number	372A
Design Units	Imperial
Bearing Weight	3.7 lb1.7 Kg
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	1.9375 in49.213 mm
D - Cup Outer Diameter	3.8125 in96.838 mm
B - Double Cone Width	2.6570 in67.488 mm
C - Cup Width	0.7500 in19.050 mm
T - Bearing Width across Cups	2.0939 in53.185 mm
R - Cone Frontface "To Clear" Radius¹	0.030 in0.80 mm
r - Cup Backface "To Clear" Radius²	0.06 in1.5 mm
da - Cone Frontface Backing Diameter	2.2 in55.90 mm
Db - Cup Backface Backing Diameter	3.39 in86.10 mm
Ab - Cage-Cone Frontface Clearance	-0.19 in-4.8 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	5120 lbf22800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	34400 lbf153000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	8920 lbf39700 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	2970 lbf13200 N
K - Factor⁷	1.73
e - ISO Factor⁸	0.34
Y1 - ISO Factor⁹	1.99
Y2 - ISO Factor¹⁰	2.97
Cg - Geometry Factor¹¹	0.0816
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
QMP09J112S	3.93	2.64	10 lb4.5 Kg	0883450080620 0883450080637 0883450080651 0883450080668 0883450080675 0883450080682 0883450080699 08	0.0015 in0.038 mm	1-3/4 in
SNM 20-70	19.05	8	6	SNM 20-70	18	13
39585D/39522	2.8750 in73.025 mm	39500	0.030 in0.80 mm	Spacer shows standard nominal .01 radii, actual bearing may vary	Imperial	4.4375 in112.713 mm
51224	2200	1600	11.8	390.0	127.0	0.00
JH-1412	11000	JH-1412	31.0	15000	22.225	30.162
50BNR10H	50	0.6	1.0	50BNR10H	266.000	18.400
SAF 22530 X 5.1/4	539.750	SAF 530	160.3248	320.67500	SAF 22530 X 5.1/4	133.3500
NJ334	170	4.0	4.0	NJ334	37.000	2 200
6052	260	4.0	6052	25.00	1800	1500
32256/DF	274.0000	1200	700	620.000	7800.000	2410.000

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