Four-point Angular Contact Ball BearingsQJF1988MB Bearing

Four-point Angular Contact Ball Bearings are a type of ball bearings that are designed to handle high radial and axial loads in both directions. These bearings feature four contact points between the inner and outer rings, providing increased rigidity and greater load capacity compared to other types of bearings.

With their unique design, four-point angular contact ball bearings are ideal for applications where space is limited and high precision is required. This type of bearing is commonly used in applications such as robotics, machine tools, and heavy machinery.

One of the key benefits of utilizing four-point angular contact ball bearings is their ability to handle both radial and axial loads simultaneously. This makes them an ideal choice for applications where both types of loads are present. Additionally, their enhanced load-bearing capacity allows for higher performance and longer lifespan, which results in lower maintenance costs and downtime.


VAFEM (Shang Hai) Bearing Technology Co.,Ltd
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Four-point Angular Contact Ball Bearings

Dimension and Parameters

Bearing NO.
New :QJF1988MB
Old :116988
Boundary dimensions(mm)
d :440
D :600
B :74
r 1.2min :4
Basic load ratings(kN)
Cr :761
Cor :1900
Limiting speed(rpm)
Grease :670
Oil :900
Application point
a :364
Abutment and fillet dimensions(mm)
da min :458
Da max :582
ra max :3
Value
e :0.95
x :0.6
Y1 :0.66
Y2 :1.07
Y0 :0.58
Weight (kg)
Refer :67
Part Number:
d:
D:
B:
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