All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Single Row Imperial Ball Screw Support Bearings (MM9-H) > Part Number MM9308WI 2H DUH  

Part Number MM9308WI 2H DUH, Fafnir® Single Row Imperial Ball Screw Support Bearings (MM9-H)


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Timken® angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance.




Specifications  · Dimensions  · Basic Load Ratings  · Factors  · Abutment and Fillet Dimensions

Specifications

Rows per Set

Duplex

Design Units

Metric

d - Bore

23.8 mm

Ball Type

STEEL

Cage Type

CR - Phenolic Outer Land Riding Cage

Manufacturing Part Number

MM9308WI 2HDUH


Dimensions

D - Outer Diameter

62 mm
2.4409
in

Bearing Width

15.88 mm
0.625
in

Total Width

31.76 mm
1.25
in

Contact Angle

60 º


Basic Load Ratings

C0 - Static Radial Rating (per row)

35600 N
8000
lbf

Ce - Dynamic Radial Rating (per row)1

29800 N
6700
lbf

C1 ISO - Dynamic Radial Rating (per row)

26900 N
6040
lbf
1 Based on 106 revolutions of calculated fatigue life.


Factors

Limiting Speed (Grease) (per row)

3200 rpm

Limiting Speed (Oil) (per row)

6400 rpm


Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1

0.8 mm
0.031
in

r - Outer Ring "To Clear" Radius2

0.800 mm
0.031
in

da - Inner Ring Backing Diameter

48.031 mm
1.891
in

Da - Outer Ring Backing Diameter

49.030 mm
1.9303
in
1 Maximum housing fillet radius that bearing corners will clear.
2 Maximum shaft fillet radius that bearing corners will clear.



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