Angular ball bearing

Single row angular contact ball bearings, which have a contact angle, can withstand axial loads in one direction. When subjected to bidirectional axial loads, two or more bearings can also be used in pairs.

Single row angular contact ball bearings can use preloading to improve their rigidity. Therefore, suitable for high-speed and high-precision machine tool spindles

Bearing No (ordering code)

① Bearing type and size code:

7:Single row angular contact ball bearing;

2:   Diameter series code;

03:Inner diameter code,17mm;


② Contact angle code

A: 30°,  B:40°, C:15°,  A5: 25°


③ Cage code:

NA66: plastic cage; 

M: copper alloy cage;

W:steel cage


④ Pairing method:

DB:Back to back pairing;

DF:Face to face pairing;

DT:Parallel pairing;

SU:all-purpose pairing;


⑤  bearing Internal clearance code:



⑥ Bearing preload code:

SP:  slight preload;

LP:  Light preload;

MP: medium preload;

HP:  large preload

Super precision bearing

Bearings for precision machining centers

Due to the high precision requirements of precision machinery, we have developed bearings with high rigidity, low noise, and high precision(P5 grade or above). For example, the 79, 70, and 72 series bearings.In response to the high speed and rigidity requirements of the machine tool spindle industry, we have developed the SUP series high-speed thrust angle contact ball bearings

High precision angular ball bearings

The products are 79, 70, and 72 series,There are three types of contact angles, 15 °(C), 25 °(A5) and 30 °(A); Suitable for applications with low to medium speeds and high external loads。

Ultra high speed angular ball bearings

There products are 19, 10, 29, and 20 series ; There are two types of contact angles, 18 ° (A12) and 25 ° (A5)。 The ball material includes GCr15, ceramic; Applied in situations of high speed, low heat and ultra precision machining

High speed thrust angular ball bearing

A bearing developed according to the requirements for high rotational speed and high rigidity of machine tool spindles。 There are four types of contact angles, 30 °(A), 40 °(B), 50 °(B10) and 60 °(B20).