Part Number 2MMC301WICRSUH, Fafnir® Spindle Angular Contact Ball Bearings (9300WI, 9100WI, 200WI, 300WI) On The Timken Company

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All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Spindle Angular Contact Ball Bearings (9300WI, 9100WI, 200WI, 300WI) > Part Number 2MMC301WICRSUH


	Part Number 2MMC301WICRSUH, 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.

Unit of Measure: Imperial Metric Both

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

Specifications

Rows per Set		Single

Design Units		Metric

d - Bore		12 mm

Ball Type		Ceramic

Cage Type		CR - Phenolic Outer Land Riding Cage

Precision Rating		ISO P4S (ABEC 7/9)

Manufacturing Part Number		2MMC301WI SUH

Dimensions

D - Outer Diameter		37 mm 1.4567 in

Bearing Width		12 mm 0.4724 in

Total Width		12 mm 0.4724 in

Contact Angle		15 º

Basic Load Ratings

C0 - Static Radial Rating (per row)

4230 N
950 lbf

Ce - Dynamic Radial Rating (per row)¹

11000 N
2480 lbf

C1 ISO - Dynamic Radial Rating (per row)

10000 N
2260 lbf

¹ Based on 10⁶ revolutions of calculated fatigue life.

Factors

Limiting Speed (Grease) (per row)		57100 rpm

Limiting Speed (Oil)		114200 rpm

Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius¹

1 mm
0.039 in

r - Outer Ring "To Clear" Radius²

1 mm
0.039 in

da - Inner Ring Backing Diameter

17.4 mm
0.690 in

Da - Outer Ring Backing Diameter

32.1 mm
1.270 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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		Tools and Guides for Engineers

Part Number 2MMC301WICRSUH, Fafnir® Spindle Angular Contact Ball Bearings (9300WI, 9100WI, 200WI, 300WI)

Rows per Set

Design Units

d - Bore

Ball Type

Cage Type

Precision Rating

Manufacturing Part Number

D - Outer Diameter

Bearing Width

Total Width

Contact Angle

C0 - Static Radial Rating (per row)

Ce - Dynamic Radial Rating (per row)1

C1 ISO - Dynamic Radial Rating (per row)

Limiting Speed (Grease) (per row)

Limiting Speed (Oil)

R - Inner Ring "To Clear" Radius1

r - Outer Ring "To Clear" Radius2

da - Inner Ring Backing Diameter

Da - Outer Ring Backing Diameter

Ce - Dynamic Radial Rating (per row)¹

R - Inner Ring "To Clear" Radius¹

r - Outer Ring "To Clear" Radius²