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

MM17BS47 DUH	N/A Duplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 TUH	N/A Triplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 QUH	N/A Quadruplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 SUM	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
MM17BS47 DUM	N/A Duplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 TUM	N/A Triplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 QUM	N/A Quadruplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 SUL	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
MM17BS47 DUL	N/A Duplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 TUL	N/A Triplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM17BS47 QUL	N/A Quadruplex	N/A 17 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 SUH	N/A Single	N/A 20 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
MM20BS47 DUH	N/A Duplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 TUH	N/A Triplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 QUH	N/A Quadruplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 SUM	N/A Single	N/A 20 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
MM20BS47 DUM	N/A Duplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 TUM	N/A Triplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 QUM	N/A Quadruplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 SUL	N/A Single	N/A 20 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
MM20BS47 DUL	N/A Duplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 TUL	N/A Triplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM20BS47 QUL	N/A Quadruplex	N/A 20 mm	N/A 1.8504 in47 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 5600 lbf24900 N	N/A 5600 lbf24900 N	N/A STEEL	N/A
MM25BS52 SUH	N/A Single	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 DUH	N/A Duplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 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