d:
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687/672D bearing

Dobbelt række konisk rulleleje (tommer serie)

687/672D bearing

Description

As a leading global 687/672d bearing manufacturer and supplier in China, we're featured by perfect solution for many kinds of bearing supplying,competitive price and fast delivery for each customer. Please rest assured to buy 687/672d bearing at the best price from Vista. For any special requirement, contact us now.

Double Row Tapered Roller Bearing(Inch Series)of Vista's bearing products. Vista's products will give you perfect experience.

Features and benefits:

Long service life 

The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles of Vista Explorer bearings optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends, and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles. 

Enhanced operational reliability 

Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film. 

Consistency of roller profiles and sizes 

The rollers incorporated in Vista double row tapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.


Dimension and Parameters

Dobbelt række konisk rulleleje (tommer serie) Dobbelt række konisk rulleleje (tommer serie)
Bearing NO. :687/672D
Boundary dimensions(mm)
d :101.6
D :168.275
T :92.075
B :41.275
C :69.85
Rsmin :3.5
rsmin :0.5
Structure :1
Value
e :0.47
Y1 :1.43
Y2 :2.12
Y0 :1.4
Basic load ratings(kN)
Cr :357
Cor :648
Limiting speed(rpm)
Grease :1800
Oil :2400
Weight (kg)
Refer :8.18

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