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All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K) > Part Number MMC9104K  
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Part Number MMC9104K, Fafnir® Spindle Deep Groove Ball Bearings (9100K, 200K, 300K)



Radial ball bearings consist of an inner and outer ring with a cage containing a complement of precision balls. The standard Conrad-type bearing has a deep-groove construction capable of handling radial and axial loads from either direction in versatile designs that permit relatively high-speed operation.

In addition to standard single-row deep groove bearings, Timken offers special designs, including a maximum capacity series and an extra large (XLS) radial series bearing.

Size range: 3 mm - 600 mm (0.12 in. - 23.62 in.) bore




Unit of Measure: Imperial Metric Both

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

Specifications

Design Units

Metric

Rows per Set

Single

d - Bore

20 mm

Ball Type

Ceramic

Cage Type

CR - Phenolic Inner Land Riding Cage

Precision Class

ISO P4S (ABEC 7/9)


Dimensions

D - Outer Diameter

42 mm
1.6535
in

Bearing Width

12 mm
0.4724
in


Basic Load Ratings

Ce - Dynamic Radial Rating (per row)1

9620 N
2160
lbf

C0 - Static Radial Rating (per row)

3980 N
890
lbf

C1 ISO - Dynamic Radial Rating (per row)

8740 N
1960
lbf
1 Based on 106 revolutions of calculated fatigue life.


Factors

Limiting Speed (Grease) (per row)

40800 rpm

Limiting Speed (Oil)

81600 rpm


Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1

0.6 mm
0.024
in

r - Outer Ring "To Clear" Radius2

0.6 mm
0.024
in

da - Inner Ring Backing Diameter

24.8 mm
0.980
in

Da - Outer Ring Backing Diameter

37.7 mm
1.490
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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