All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Spindle Angular Contact Ball Bearings (9300WI, 9100WI, 200WI, 300WI) > Part Number 3MMC9128WICRTUX  

Part Number 3MMC9128WICRTUX, Fafnir® Spindle Angular Contact Ball Bearings (9300WI, 9100WI, 200WI, 300WI)

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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
Triplex

Design Units
Metric

d - Bore
140 mm

Ball Type
Ceramic

Cage Type
CR - Phenolic Outer Land Riding Cage

Precision Rating
ISO P4S (ABEC 7/9)

Manufacturing Part Number
3MMC9128WI TUL

World Part Number
C7028E-T-P4S-TUL


Dimensions

D - Outer Diameter
210 mm
8.2677 in

Bearing Width
33 mm
1.2992 in

Total Width
99 mm
3.8976 in

Contact Angle
25 º


Basic Load Ratings

C0 - Static Radial Rating (per row)
122286 N
27500 lbf

Ce - Dynamic Radial Rating (per row)1
138300 N
31100 lbf

C1 ISO - Dynamic Radial Rating (per row)
126000 N
28300 lbf
1 Based on 106 revolutions of calculated fatigue life.


Factors

Limiting Speed (Grease) (per row)
6360 rpm

Limiting Speed (Oil)
12720 rpm


Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1
2 mm
0.079 in

r - Outer Ring "To Clear" Radius2
2 mm
0.079 in

da - Inner Ring Backing Diameter
154.3 mm
6.080 in

Da - Outer Ring Backing Diameter
196.5 mm
7.740 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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