Part Number MM12BS32 DUL, Fafnir® Single Row Ball Screw Support Bearings (MM-BS) On The Timken Company

Search Catalog



	All Product Types Fafnir® Single Row Ball Screw Support Bearings (MM-BS)

		\| Shipping \| Tax \| Terms
Shopping Cart	0 Items

Request for Quote	0 Items

All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Single Row Ball Screw Support Bearings (MM-BS) > Part Number MM12BS32 DUL


	Part Number MM12BS32 DUL, Fafnir® Single Row Ball Screw Support Bearings (MM-BS)

larger image

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

Manufacturing Part Number		MM12BS32DUL

Rows per Set		Duplex

Design Units		Metric

d - Bore		12 mm

Ball Type		STEEL

Cage Type		CR - Phenolic Outer Land Riding Cage

Dimensions

D - Outer Diameter		32 mm 1.2598 in

Bearing Width		10 mm 0.3937 in

Total Width		20 mm 0.7874 in

Contact Angle		60 º

Basic Load Ratings

C0 - Static Radial Rating (per row)		11400 N 2600 lbf

Ce - Dynamic Radial Rating (per row)		9500 N 2140 lbf

C1 ISO - Dynamic Radial Rating (per row)		8600 N 1930 lbf

Factors

Limiting Speed (Grease) (per row)		7300 rpm

Limiting Speed (Oil)		14600 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

21.717 mm
0.855 in

Da - Outer Ring Backing Diameter

22.327 mm
0.879 in

¹ Maximum housing fillet radius that bearing corners will clear.
² Maximum shaft fillet radius that bearing corners will clear.

VIEW CAD DRAWING



· 3D


· 2D Sales Drawing


· 2D Sectional View

DOWNLOADS


		Bearing Life Calculation Tool

		Bearing Dimensional Tolerances

		Tools and Guides for Engineers

Part Number MM12BS32 DUL, Fafnir® Single Row Ball Screw Support Bearings (MM-BS)

Manufacturing Part Number

Rows per Set

Design Units

d - Bore

Ball Type

Cage Type

D - Outer Diameter

Bearing Width

Total Width

Contact Angle

C0 - Static Radial Rating (per row)

Ce - Dynamic Radial Rating (per row)

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

R - Inner Ring "To Clear" Radius¹

r - Outer Ring "To Clear" Radius²