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Angular Contact Ball Bearings

Category: Bearings-Ball Bearings

Angular Contact Ball Bearings

Introduction

Angular contact ball bearings can bear both radial and axial loads, which can work at a higher speed. The larger the contact angle, the higher the axial bearing capacity. The contact angle is the angle between the connecting line of the contact point between the ball and the raceway in the radial plane and the vertical line of the bearing axis. High precision and high-speed bearings usually have a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase.

Angular Contact Ball Bearings

(1) Angular contact ball bearings are available in single row and double row configurations.

(2) Able to accommodate both radial and thrust loads

(3) Suitable for high speed operation

(4) Open and sealed versions available

(5) Highly rigid

(6) Standard: DIN 616, DIN 628

*Series:

single row: 7200, 7300

double row: 3200, 3300, 5200, 5300

Typical applications:

Gearboxes

Agricultural machinery

Pumps and compressors

Ventilators

Machine tools

etc.

Angular Contact Ball Bearings

Angular contact ball bearings suffix as below:

DB : Two bearings matched back-to-back

DF : Two bearings matched face-to-face

DT : Two bearings matched in tandem

C: 15° contact angle

B : 40° contact angle

M: brass cage

P: nylon cage

The main types of angular contact ball bearings:

*Single row angular contact ball bearings

718 Series Angular Contact Bearings

719 Series Angular Contact Bearings

70 Series Angular Contact Bearings

B70 Series Angular Contact Bearings

72 Series Angular Contact Bearings

Precision series (Reference super precision bearings series )

*Double row angular contact ball bearings

*Four-point contact ball bearings.

Parameter:

Suffixes – Internal design Stands for

A 30° contact angle

AB 20° contact angle (Inch bearing )

AC 25° contact angle

B 40° contact angle

E Optimized internal design

Suffixes – External design (seals, snap ring groove, execution etc.) Stands for

N1 One locating slot (notch) in one outer ring side face

CA Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have axial internal clearance smaller than Normal (CB).

CB Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have Normal axial internal clearance.

CC Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have axial internal clearance greater than Normal (CB).

G Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have axial internal clearance.

GA Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have light preload.

GB Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have moderate preload.

GZ Bearing for universal matching. Two bearings arranged back-to-back or face-to-face have heavy preload.

Suffixes – Cage design Stands For

F Machined steel cage, ball centred

J Stamped steel cage, ball centred

M Machined brass cage, ball centred; different designs are identified by a number following the M, e.g. M2

MB Machined brass cage, inner ring centred

P Glass fibre reinforced PA66 cage, ball centred

PH Glass fibre reinforced PEEK cage, ball centred

Y Stamped brass cage, ball centred

Suffixes – Accuracy, clearance, preload, quiet running Stands For

P5 Dimensional and running accuracy to P5 tolerance class

P6 Dimensional and running accuracy to P6 tolerance class

Suffixes – Bearing sets, matched bearings Stands For

DB Two bearings matched for mounting back-to-back

DF Two bearings matched for mounting face-to-face

DT Two bearings matched for mounting in tandem.