7900 Series

7900 Series

7915A5

Description

Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the bearing axis. This means that these bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.

The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the combined load is transmitted from one raceway to another, and a line perpendicular to the bearing axis

The most commonly used designs are:

single row angular contact ball bearings 

double row angular contact ball bearings 

four-point contact ball bearings 


Dimension and Parameters

7900 Series 7900 Series
Bearing Numbers
Single row :7915A5
DB :7915DB
DF :7915DF
DT :7915DT
Principal dimensions(mm)
d :75
D :105
B :16
r(min) :1
r1(min) :0.6
Basic load ratings(N)
Cr :26900
Cor :27700
Basic load ratings(kgf)
Cr :2750
Cor :2820
Value
fo :16.5
Limiting Speed (rpm)
Grease :7500
Oil :10000
Distance of action point(mm)
a :29
Abutment and fillet dimensions
da(min) :81
Da(max) :99
ra(max) :1
Weight
(kg) :0.355
Basic load ratings(duplex bearing) (N)
Cr :44000
Cor :55500
Basic load ratings(duplex bearing) (kgf)
Cr :4450
Cor :5650
Limiting Speed(duplex bearing) (rpm)
Grease :6000
Oil :8500
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :58
face-to-face arrangement :26
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :100
rb(max) :0.6