Fafnir® Single Row Ball Screw Support Bearings (MM-BS)Precision Ball Bearings
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.
MM12BS32 SUH Fafnir® Single Row Ball Screw Support Bearings (MM-BS)
MM12BS32 DUH Fafnir® Single Row Ball Screw Support Bearings (MM-BS)
MM12BS32 TUH Fafnir® Single Row Ball Screw Support Bearings (MM-BS)
MM12BS32 QUH Fafnir® Single Row Ball Screw Support Bearings (MM-BS)
MM12BS32 SUM Fafnir® Single Row Ball Screw Support Bearings (MM-BS)
Rows per Set
N/ASingle
N/ADuplex
N/ATriplex
N/AQuadruplex
N/ASingle
Design Units
N/AMetric
d - Bore
N/A12 mm
D - Outer Diameter
N/A32 mm1.2598 in
Bearing Width
N/A10 mm0.3937 in
Total Width
N/A10 mm0.3937 in
N/A20 mm0.7874 in
N/A30 mm1.1811 in
N/A40 mm1.5748 in
N/A10 mm0.3937 in
Contact Angle
N/A60 º
C0 - Static Radial Rating (per row)
N/A11400 N2600 lbf
Ce - Dynamic Radial Rating (per row)
N/A9500 N2140 lbf
Limiting Speed (Grease) (per row)
N/A7300 rpm
Limiting Speed (Oil)
N/A14600 rpm
Ball Type
N/ASTEEL
Cage Type
N/ACR - Phenolic Outer Land Riding Cage
Bearing Weight
N/A0.040 Kg0.09 lb
N/A0.08 Kg0.18 lb
N/A0.12 Kg0.27 lb
N/A0.16 Kg0.36 lb
N/A0.040 Kg0.09 lb
R - Inner Ring "To Clear" Radius1
N/A0.8 mm0.031 in
r - Outer Ring "To Clear" Radius2
N/A0.800 mm0.031 in
da - Inner Ring Backing Diameter
N/A21.717 mm0.855 in
Da - Outer Ring Backing Diameter
N/A22.327 mm0.879 in
World Part Number
N/A
1 Maximum housing fillet radius that bearing corners will clear.
2 Maximum shaft fillet radius that bearing corners will clear.
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