68 Series681X 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. 


miniature bearing from the 68 Series, specifically the 681X model. This bearing is perfect for small machinery and equipment that require precise rotations and minimal noise. 

The 681X miniature bearing has a bore diameter of 1.5mm, outer diameter of 4mm, and width of 1.2mm. With such compact dimensions, this bearing is able to fit into tight spaces while still providing exceptional performance. 

Made from high-quality materials, this bearing is designed to withstand high speeds and heavy loads. It has a low friction coefficient, which means that it can rotate smoothly without generating excessive heat or noise. This makes it an ideal choice for intricate mechanisms where precision and reliability are crucial. 


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

Dimension and Parameters

Designation
With shiled :681X
Open type :681XZZ
With seal VV :-
With seal DD :-
Principal dimensions(mm)
d :1.5
D :4
B :12
B1 :2
r(min) :0.05
Basic load ratings(N)
Cr :112
Cor :33
Basic load ratings{kgf}
Cr :11
Cor :3.5
Speed ratings(rpm)
Grease
ZZ :100000
D·D :-
Oil
Z :120000
Abutment and fillet dimensions (mm)
da(min) :1.9
db(max) :2.1
Da(Max) :3.6
Db(min) :3.6
ra(max) :0.05
rb(max) :0.05
Weight(g)
Open type :0.07
With shiled :0.11
Part Number:
d:
D:
B:
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