Tapered Roller Bearings - TDI (Tapered Double Inner)

78255D/78537 bearing | Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial

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Price：	enquiry
Model Number：	78255D/78537
Series：	2.6020 in66.091 mm
r - Cup Backface "To Clear" Radius²：	78000
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	78000
Cone Part Number	78255D
Cup Part Number	78537
Design Units	Imperial
Bearing Weight	9.5 lb4.3 Kg
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in0 mm
d - Bore	2.5586 in64.988 mm
D - Cup Outer Diameter	5.3750 in136.525 mm
B - Double Cone Width	2.5980 in65.989 mm
C - Cup Width	0.9260 in23.520 mm
T - Bearing Width across Cups	2.6020 in66.091 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	3.11 in79 mm
Db - Cup Backface Backing Diameter	4.53 in115.10 mm
Ab - Cage-Cone Frontface Clearance	0.08 in2 mm
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)³	9970 lbf44300 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)⁴	66900 lbf298000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)⁵	17400 lbf77200 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁶	14800 lbf65700 N
K - Factor⁷	0.67
e - ISO Factor⁸	0.87
Y1 - ISO Factor⁹	0.78
Y2 - ISO Factor¹⁰	1.16
Cg - Geometry Factor¹¹	0.0884
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
2307 EKTN9	12000	16000	11.200	39.700	2307 EKTN9	80.000
LA250120BLN1K##---+(30)	LA25BL	30.0	-	-	-	-
2MV200WI	0.60 mm0.024 in	0.60 mm0.024 in	125600 rpm	62800 rpm	5.556250 mm7/32 in	METRIC
RNA49/22R	0.30	RNA49/22R	0.0500	14000	9500	39
239/900	239/900	623.000	0.0	900	6.0	270
M804049/10	25.400	47.625	3.60	M804049/10	5900	4400
22212KEJW33C3	2.78	4.23	2.84	22212KCJW33C3	5500	4400
B-810	0.010 / 0.023	0.5000 / 0.6875 / 0.625	1/2	12.700 / 0.5000	17.463 / 0.6875	3.20
7936CDT FY	180	1.0	2.0	3700	2800	7936CDTFY
7415 BGAM	4500	5.1	140	168	7415 BGAM	75.000

Tapered roller bearing 78255d-78537-timken - 64.987x136.525x66 ...

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