68 Series688A Bearing

Miniature bearings are a type of bearing specially designed for small and precision applications. The 68 Series miniature bearing is one of the most popular types of miniature bearings on the market. This series features a wide range of sizes and options to suit various mechanical needs. 

The 68 Series miniature bearing is commonly used in various industries including robotics, aerospace, medical devices, and many others. Its small size and precision make it ideal for applications with limited space and tight tolerances.

One of the defining features of the 68 Series miniature bearing is its ability to handle high speeds while maintaining low noise and vibration. This is achieved through the use of high-grade materials and advanced manufacturing techniques that ensure smooth operation and minimal friction. 


VAFEM (Shang Hai) Bearing Technology Co.,Ltd
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68 Series

Dimension and Parameters

Designation
With shiled :688A
Open type :688AZZ1
With seal VV :688AVV
With seal DD :688ADD
Principal dimensions(mm)
d :8
D :16
B :4
B1 :5
r(min) :0.2
Basic load ratings(N)
Cr :1610
Cor :710
Basic load ratings{kgf}
Cr :164
Cor :73
Speed ratings(rpm)
Grease
ZZ :36000
D·D :28000
Oil
Z :43000
Abutment and fillet dimensions (mm)
da(min) :9.6
db(max) :10.2
Da(Max) :14.4
Db(min) :14.2
ra(max) :0.2
rb(max) :0.2
Weight(g)
Open type :3.12
With shiled :4.02
Part Number:
d:
D:
B:
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