3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm SUNBEARING
3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm SUNBEARING
3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm SUNBEARING
Model
3309

Item specifics

Color
Silver
Inner Diameter
45mm
Outer Diameter
100mm
Width
39.7mm

Review

Description

3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm  SUNBEARING

3309 bearing
Bore diameter:
45 mm
Static Load Rating

17600 lbf

78500 N

78.50 kN

Outside diameter:
100 mm
Dynamic Load Rating

16400 lbf

73000 N

73.00 kN

Overall width:
39.7 mm
Operating Temperature Range

-40 to 250 ºF

-40 to 120 ºC

Rows of Balls
Double
Reference speed
7500 r/min
Outer ring type:
UnSplit
Limiting speed
6700 r/min
Internal clearance:
CN
Mass
1.25 Kgs
Closure type:
Open
Contact Angle
32 º
Material
 High Carbon Chrome Steel
 da min
54 mm
Precision
Class 0
ra max
1.5 mm
Configuration
Two
Da max
91 mm

3309 Bearing Short Description

3309 bearing double row angular contact bearings are designed to work as two single row angular contact bearings but take up less axial space. They can accommodate radial loads and axial loads in both directions. The bearings have a 30-degree contact angle with the ball sets arranged back-to-back.


Cage material can be either metal (no suffix) or glass-reinforced polyamide with the suffix "TN9". Double Row Angular Contact bearings are available in open design (no seals or shields) or with Metal Shields "2Z" and Rubber Seals "2RS1". The shielded and sealed bearings come pre-greased with high-quality NLGI class 3 grease with a temperature range of -30 to +120 degree C and are marked with the suffix "MT33".

double row angular contact ball bearing
3309 bearing

3309 Angular Contact Ball Bearing Features

The design of double row angular contact ball bearings is basically the same as that of single row angular contact ball bearings but only takes up a smaller axial space. Double row angular contact ball bearings can bear radial load and axial load acting in two directions, and it can limit the axial displacement of the shaft or housing in both directions. A bearing configuration with higher rigidity can be provided and can withstand the overturning moment.


Double row angular contact ball bearings can withstand larger radial loads, mainly combined radial and axial loads and moment loads, limiting the axial displacement of the shaft on both sides. Mainly used in components that limit the bidirectional axial displacement of the shaft and the housing.

3309 Bearing Application

Compared with single row angular contact ball bearings, double row angular contact ball bearings have better rigidity and can withstand overturning moments. The bearing is non-separable. Especially suitable for applications with high rigidity requirements. Widely used in front-wheel hubs of cars (some models also use double row tapered roller bearings of the same size)