Tapered Roller Bearings - TDI (Tapered Double Inner)

M278749DW/M278710 bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	M278749DW/M278710
Series：	11.2499 in285.747 mm
r - Cup Backface "To Clear" Radius²：	M278700
Design Units：	0.130 in3.30 mm
Db - Cup Backface Backing Diameter：	Spacer shows standard nominal .01 radii, actual bearing may vary
da - Cone Frontface Backing Diameter：	Imperial

Series	M278700
Cone Part Number	M278749DW
Cup Part Number	M278710
Design Units	Imperial
Bearing Weight	1059.70 lb480.700 Kg
Cage Type	Pin-Type
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	22.5000 in571.500 mm
D - Cup Outer Diameter	32.0000 in812.800 mm
B - Double Cone Width	11.2500 in285.750 mm
C - Cup Width	4.7500 in120.650 mm
T - Bearing Width across Cups	11.2499 in285.747 mm
R - Cone Frontface "To Clear" Radius¹	0.130 in3.30 mm
r - Cup Backface "To Clear" Radius²	0.250 in6.40 mm
da - Cone Frontface Backing Diameter	23.98 in609.10 mm
Db - Cup Backface Backing Diameter	29.76 in755.90 mm
Ab - Cage-Cone Frontface Clearance	0.34 in8.6 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	264000 lbf1180000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	1770000 lbf7890000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	460000 lbf2050000 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	150000 lbf669000 N
K - Factor⁷	1.76
e - ISO Factor⁸	0.33
Y1 - ISO Factor⁹	2.03
Y2 - ISO Factor¹⁰	3.02
G1 - Heat Generation Factor (Roller-Raceway)¹¹	12400
G2 - Heat Generation Factor (Rib-Roller End)	669
Cg - Geometry Factor¹²	0.299
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
FSAF 22518 X 3.1/4	349.250	FSAF 518	101.6000	192.48438	FSAF 22518 X 3.1/4	82.5500
52202	0.6	0.6	15	52202	7100	0.081
C 3034 M	2800	2200	-	170.000	100.000	1080.000
30208/DF	39.5000	8500	5600	15.300	137.000	130.000
4T-78225/78551	57.150	2.3	3.5	4T-78225/78551	2.69	140.030
23996KYMBW40IW534	3.9	5.94	3.99	640	550	4.000 mm0.160 in
TAFI 172920	17	TAFI 172920	54.0	21	29	18200
15TAB04-2NKE	15	0.6	1	0.14	6300	47
LW350108ELN1PCZ1AL+(14)	LW35EL	14.0	-	-	-	-
90805	90805	529.971	534.746	57.150	-	-

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