78250/78551 Timken Tapered Roller Bearings

78250/78551 Timken Tapered Roller Bearings

Name	78250/78551	78250/78551	78250/78551
Brand	NSK	FBJ	NACHI
Size (mm)	63.5x140.03x36.512(mm)	63.5x140.03x36.51(mm)	63.500x140.030x36.512(mm)
Bore Diameter (mm)	63,5(mm)	63,5(mm)	63.500(mm)
Outer Diameter (mm)	140,03(mm)	140,03(mm)	140.030(mm)
Width (mm)	36,512(mm)	36,51(mm)	36.512(mm)
d	63,5 mm 2.5 in	63,5 mm 2.5 in	63.500 mm 2.5 in
D	140,03 mm 5.513 in	140,03 mm 5.513 in	140.030 mm 5.513 in
T	36,512 mm 1.4375 in	36,51 mm 1.4374 in	36.512 mm 1.4375 in
B	33,236 mm 1.3085 in	33236 mm 1308.5046 in	33.236 mm 1.3085 in
C	23,52 mm 0.926 in	23,52 mm 0.926 in	23.520 mm 0.926 in
ra1 max.	2,3 mm 0.0906 in
a	44,2 mm 1.7402 in
r min.	2,3 mm 0.0906 in
r1 min.	2,3 mm 0.0906 in		2.3 mm 0.0906 in
Da	117 mm 4.6063 in
db	79 mm 3.1102 in
ra max.	2,3 mm 0.0906 in
da	85 mm 3.3465 in
Db	132 mm 5.1969 in
Weight	2,436 Kg	2,54 Kg	2,425 Kg
Basic dynamic load rating (C)	152 kN	171 kN	145000 kN
Basic static load rating (C0)	183 kN	21,2 kN	172000 kN
(Grease) Lubrication Speed	2600 r/min	2600 r/min	2500 r/min
(Oil) Lubrication Speed	3600 r/min		3500 r/min
Calculation factor (e)	0,87		0.87
Calculation factor (Y0)	0,38		0.38

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