All Product Types > ENGINEERED BEARINGS > Ball Bearings > Precision Ball Bearings > Fafnir® Single Row Ball Screw Support Bearings (MM-BS) > Part Number MM45BS75 TUL  

Part Number MM45BS75 TUL, Fafnir® Single Row Ball Screw Support Bearings (MM-BS)

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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

Manufacturing Part Number
MM45BS75TUL

Rows per Set
Triplex

Design Units
Metric

d - Bore
45 mm

Ball Type
STEEL

Cage Type
CR - Phenolic Outer Land Riding Cage


Dimensions

D - Outer Diameter
75 mm
2.9528 in

Bearing Width
15 mm
0.5906 in

Total Width
45 mm
1.7718 in

Contact Angle
60 º


Basic Load Ratings

C0 - Static Radial Rating (per row)
50700 N
11400 lbf

Ce - Dynamic Radial Rating (per row)
38500 N
8660 lbf

C1 ISO - Dynamic Radial Rating (per row)
34700 N
7810 lbf


Factors

Limiting Speed (Grease) (per row)
2700 rpm

Limiting Speed (Oil)
5400 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
59.441 mm
2.3402 in

Da - Outer Ring Backing Diameter
60.569 mm
2.3846 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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