Fafnir® Single Row Ball Screw Support Bearings (MM-BS) On The Timken Company

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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.

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Rows per Set

d - Bore (mm)

D - Outer Diameter (in)

D - Outer Diameter (mm)

Bearing Width (in)

Bearing Width (mm)

Total Width (in)

Total Width (mm)

Ce - Dynamic Radial Rating (per row) (lbf)

Ce - Dynamic Radial Rating (per row) (N)

Limiting Speed (Grease) (per row) (rpm)

Limiting Speed (Oil) (rpm)

Part Number	Rows per Set	d - Bore	D - Outer Diameter	Bearing Width	Total Width	Contact Angle	C0 - Static Radial Rating (per row)	Ce - Dynamic Radial Rating (per row)	Ball Type	CAD

MM12BS32 SUH	N/A Single	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.3937 in10 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 DUH	N/A Duplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.7874 in20 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 TUH	N/A Triplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.1811 in30 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 QUH	N/A Quadruplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.5748 in40 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 SUM	N/A Single	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.3937 in10 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 DUM	N/A Duplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.7874 in20 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 TUM	N/A Triplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.1811 in30 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 QUM	N/A Quadruplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.5748 in40 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 SUL	N/A Single	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.3937 in10 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 DUL	N/A Duplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 0.7874 in20 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 TUL	N/A Triplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.1811 in30 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM12BS32 QUL	N/A Quadruplex	N/A 12 mm	N/A 1.2598 in32 mm	N/A 0.3937 in10 mm	N/A 1.5748 in40 mm	N/A 60 º	N/A 2600 lbf11400 N	N/A 2140 lbf9500 N	N/A STEEL	N/A
MM15BS35 SUH	N/A Single	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.4331 in11 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 DUH	N/A Duplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.8662 in22 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 TUH	N/A Triplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.2993 in33 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 QUH	N/A Quadruplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.7324 in44 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 SUM	N/A Single	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.4331 in11 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 DUM	N/A Duplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.8662 in22 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 TUM	N/A Triplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.2993 in33 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 QUM	N/A Quadruplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.7324 in44 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 SUL	N/A Single	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.4331 in11 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 DUL	N/A Duplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 0.8662 in22 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 TUL	N/A Triplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.2993 in33 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM15BS35 QUL	N/A Quadruplex	N/A 15 mm	N/A 1.3780 in35 mm	N/A 0.4331 in11 mm	N/A 1.7324 in44 mm	N/A 60 º	N/A 3100 lbf13700 N	N/A 2340 lbf10400 N	N/A STEEL	N/A
MM17BS47 SUH	N/A Single	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A

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Email ^*
First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
Zip/Postal Code ^*
Phone Number

No Preference
0.3937
0.4331
0.5906
0.7874
0.8662
0.8858
0.9055
1.1811
1.1812
1.2993
1.5748
1.7324
1.7716
1.7718
1.811
2.3622
2.3624
2.6574
2.7165
3.1496
3.5432
3.622

No Preference
10
11
15
20
22
22.5
23
30
33
40
44
45
46
60
67.5
69
80
90
92