★Product features
 
Deep groove ball bearings from the four basic components, which are within Raceway (inner), outside the raceway (outer ring), and the ball cage. In normal operation, the raceway within and outside the raceway and the ball under load, and maintain aircraft for the ball and separation from stable. Single row deep groove ball bearings to the heart of simple construction, both within and outside the ring is not isolated, easy to use, such as precision instruments, and low electrical noise, cars, motorcycles, woodworking machinery, textile machinery of the shaft, mining machinery, electrical and mechanical equipment, plastic machinery, office Equipment, medical devices, health, national defense, aviation, aerospace and sports equipment and general machinery, machine-building industry is the most widely used in a class of bearings. The main radial load to bear, but also to bear a certain amount of axial load. Increase the radial bearing clearance, with a thrust bearing to the heart of nature, can withstand greater axial loading. Bearing such limit axial movement in both directions. According to the size of the clearance allowed, the outer ring relatively tilt 8 'to 16'.
● Product Classification
ZWZ the current production of deep groove ball bearings can be divided into the following types of structure:
1, single row deep groove ball bearings
2, with the dust cover a separate deep groove ball bearings
3, with dust cover, a separate ring of deep groove ball bearings
4, the outer ring there are only moving trough of the ring and stop a separate deep groove ball bearings

Single row deep groove ball bearings
In the general installation, sealed, with no special requirements for components, such bearings can be used.

With the dust cover single row deep groove ball bearings
In the lubrication difficulties and difficulties in inspection and lubrication can be used under the special status of these bearings. With the dust cover space between the inner ring. With the dust cover both sides in the manufacture of bearings has been put into the proper lubricant, so when they do not have to install cleaning and processing lubricants. Work, the lubricating allowing no time limit coupled with the lubricant.

With a separate ring of deep groove ball bearings
More general framework of steel ring-ring rubber. It is a sealed contact with the dust cover with the deep groove ball bearings in comparison. Waterproof and dust better performance, but a number of large frictional resistance, to a certain speed limit.

There are only moving outer groove of the ring and stop a separate deep groove ball bearings
Can only move so Central axial position in the case simplifies the installation.
 
■ size range
ZWZ deep groove ball bearings the size of the basic data already out in Size table

Diameter size range: 10mm ~ 1320mm
Outside diameter size range: 30mm ~ 1600mm
Size width range: 9mm ~ 300 mm
 
◆ Tolerance
ZWZ standard deep groove ball bearings with a general level, with all GB307.1.
▲ radial clearance
ZWZ standard deep groove ball bearings with C2, the standard (CN), C3, C4 and C5-level internal space, and all with GB4604. Radial clearance see the ＆#118alue in the form foreword, their ＆#118alue does not apply to the installation and non-load bearing. Internal space is greater than or less than the ＆#118alue of the standard bearings can be manufactured in accordance with user requirements.
★ Cage
Deep groove ball bearings used in general stamping steel cage or entity brass cage. When the outer diameter of less than 400 mm, using steel cage without stamping post code, when the outside diameter greater than 400 mm when the use of brass cage entities not post code.
● allow the perspective of error
Deep groove ball bearings inside and outside the ring to allow the tilt angle relative error, according to the radial clearance, the list is as follows

According to the radial clearance to allow the perspective of error
Basic Group 8 '
Group 3 12 '
Group 4 16 '
 
■ equivalent dynamic load
P = XFr + YFa [kN]

Fr: radial load kN
Fa: axial load kN
 
★ equivalent static load
P0 = Fr [kN] Fa / Fr ≤ 0.8
P0 = 0.6Fr +0.5 Fa [kN] Fa / Fr> 0.8