Quick Details


Angular Contact, Angular Contact


Ball, Ball

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:


Outside Diameter:

300 mm

Bore Size:

140 mm

Number of Row:

Single Row

Precision Rating:


Seals Type:







Oil or grease


C0 C1 C2 C3 C




OEM customized services

Vibration Rating:




Supply Ability

Supply Ability:
41000 Set/Sets per Month

Packaging & Delivery

Packaging Details
single box package with plastic bag inside ,paper box outside,then put into the carton
Tianji Port /Qingdao Port /Shanghai Port
Lead Time
15-20 days after making order

Online Customization


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2.widely application
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Medium and large single row/double row/four-point angular contact ball bearings ZZ 2RS

1. Angular contact ball bearings have raceways in the inner and outer rings that are displaced with respect to each other in the direction of the bearing axis. This means that they are designed to accommodate combined loads, I. E. Simultaneously acting radial and axial loads.

2. The axial load carrying capacity of angular contact ball bearings increases with increasing contact angle. The contact angle α Is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the load is transmitted from one raceway to another, and a line perpendicular to the bearing axis.

3. Angular contact ball bearings features:
1) Load capacities are higher than deep groove ball bearings of same dimensions
2) Used for bearing radial-axial combined loads or pure thrust loads
3) Low operating friction and high limiting speed

4. Types:
1. Single row angular contact ball bearings
2. Double row angular contact ball bearings
3. Four-point contact ball bearings

5. Mounting
/dB: Mount in duplex, back to back
/DF: Mount in duplex, face to face
/DT: Mount in duplex, tandem

6. Internal structure:
C: Normal contact angle a=15
AC: Normal contact angle a=25
B: Normal contact angle a=40

Product data of NSK 7328BG Angular contact ball bearings

d= 140 mm Inside Dia

D= 300 mmOutside Dia

D= 62 mm Width

m=21.6 kg Mass

Cr= 275 kN Basic dynamic load rating, radial

Cor=310 kN Basic static load rating, radial

nG= 1700 r/min Limiting speed,Grease lub

nG= 2400 r/min Limiting speed,Oil lub

Bearing Designation:
OPEN: 3200, 3201, 3202, 3302, 3202, 5203, 3303, 3204, 5204, 3304, 5304,
3205, 5205, 3305, 5305, 3206, 5206, 3306, 5206, 3207, 5207, 3307,
5307, 3208, 5208, 3308, 5308, 3209, 5209, 3309, 5309, 3210, 5210,
3310, 5310, 3211, 5211, 3311, 5311, 3212, 5212, 3312, 5312, 3213,
5213, 3313, 5313, 3214, 5214, 3314, 5314, 3215, 3315, 5315, 3216,
3316, 3217, 3317, 3218, 3318, 3219, 3319, 3220, 3320, 3221, 3321,
3222, 3322,