Weight Timken We have lot of 78255X - 78549D bearing in stock, d:64.988 *D:139.700 *B:32.923 mm ,

78255X - 78549D

78255D/78551/Y3S-78551 78255D/78537/Y1S-78537 78255X/78549D/X1S-78255X 78255X/78571 78255X/78551

78255X - 78549D bearinginquiry

Series

78000

Cone Part Number

78255X

Cup Part Number

78549D

Design Units

Imperial

Bearing Weight

10.6886 lb
4.8483 Kg

Cage Type

Stamped Steel

D - Cup Outer Diameter

5.5000 in
139.700 mm

d - Cone Bore

2.5586 in
64.988 mm

B - Cone Width

1.2962 in
32.923 mm

C - Double Cup Width

2.0395 in
51.803 mm

T - Bearing Width across Cones

3.0625 in
77.788 mm

Z - Number of Rollers Per Row

Ka - Locking Pin Diameter

N/A

Kb - Locking Pin Depth

N/A

R - Cone Backface "To Clear" Radius¹

0.140 in
3.600 mm

r - Cup Frontface "To Clear" Radius²

0.06 in
1.5 mm

db - Cone Backface Backing Diameter

3.50 in
88.90 mm

Da - Cup Frontface Backing Diameter

5.19 in
131.83 mm

Aa - Cage-Cone Backface Clearance

0.27 in
6.90 mm

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)¹

11800 lbf
52600 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)²

79300 lbf
353000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)³

20600 lbf
91500 N

C_a90 - Dynamic Thrust Rating (90 million revolutions)⁴

17500 lbf
77900 N

K - Factor¹

0.67

e - ISO Factor²

2.6

Y1 - ISO Factor³

0.26
0.39

Y2 - ISO Factor⁴

0.39

G1 - Heat Generation Factor (Roller-Raceway)⁵

62.6

G2 - Heat Generation Factor (Rib-Roller End)

19.1

Cg - Geometry Factor⁶

0.0884

Sales the 78255X - 78549D bearings, condition monitoring and technical supports. we can assure the quality of the Timken 78255X - 78549D bearings we provide, at the same time guarantee the price is always competitive. As our valued customers, you always have a peace in mind when using 78255X - 78549D bearings..

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Weight Timken We have lot of 78255X - 78549D bearing in stock, d:64.988 *D:139.700 *B:32.923 mm , Previous:786 - 774DC Timken Next:786 - 774DC Timken

Brand:

TIMKEN Bearing

Category:

Tapered Roller Bearings

Model:

78255D/78551/Y3S-78551

64.987 mm

140.030 mm

65.989 mm

Cr:

41100 N

C0r:

60900 N

4.75 kg

Brand:

TIMKEN Bearing

Category:

Tapered Roller Bearings

Model:

78255D/78537/Y1S-78537

64.987 mm

136.525 mm

65.989 mm

Cr:

41100 N

C0r:

60900 N

4.48 kg

Brand:

TIMKEN Bearing

Category:

Tapered Roller Bearings

Model:

78255X/78549D/X1S-78255X

64.987 mm

139.700 mm

51.803 mm

Cr:

41100 N

C0r:

60900 N

4.99 kg

Brand:

TIMKEN Bearing

Category:

Tapered Roller Bearings

Model:

78255X/78571

64.987 mm

144.983 mm

32.923 mm

Cr:

158000 N

C0r:

193000 N

2.52 kg

Brand:

TIMKEN Bearing

Category:

Tapered Roller Bearings

Model:

78255X/78551

64.987 mm

140.030 mm

32.923 mm

Cr:

158000 N

C0r:

193000 N

2.37 kg