Four-point Angular Contact Ball BearingsQJ1028X1MA 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 :QJ1028X1MA
Old :176728
Boundary dimensions(mm)
d :140
D :209.5
B :33
r 1.2min :2
Basic load ratings(kN)
Cr :190
Cor :265
Limiting speed(rpm)
Grease :2000
Oil :3000
Application point
a :123
Abutment and fillet dimensions(mm)
da min :150
Da max :200
ra max :2
Value
e :0.95
x :0.6
Y1 :0.66
Y2 :1.07
Y0 :0.58
Weight (kg)
Refer :4.1
Part Number:
d:
D:
B:
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