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

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.

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
MM25BS52 TUH	N/A Triplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 QUH	N/A Quadruplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 SUM	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 DUM	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
MM25BS52 TUM	N/A Triplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 QUM	N/A Quadruplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 SUL	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 DUL	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
MM25BS52 TUL	N/A Triplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS52 QUL	N/A Quadruplex	N/A 25 mm	N/A 2.0472 in52 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 6100 lbf27100 N	N/A 5850 lbf26000 N	N/A STEEL	N/A
MM25BS62 SUH	N/A Single	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 DUH	N/A Duplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 TUH	N/A Triplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 QUH	N/A Quadruplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 SUM	N/A Single	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 DUM	N/A Duplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 TUM	N/A Triplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 QUM	N/A Quadruplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 SUL	N/A Single	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 DUL	N/A Duplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 TUL	N/A Triplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM25BS62 QUL	N/A Quadruplex	N/A 25 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 2.3624 in60 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM30BS62 SUH	N/A Single	N/A 30 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 0.5906 in15 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM30BS62 DUH	N/A Duplex	N/A 30 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.1812 in30 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A
MM30BS62 TUH	N/A Triplex	N/A 30 mm	N/A 2.4409 in62 mm	N/A 0.5906 in15 mm	N/A 1.7718 in45 mm	N/A 60 º	N/A 8000 lbf35600 N	N/A 6700 lbf29800 N	N/A STEEL	N/A

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

MM25BS52 TUH

N/A Triplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS52 QUH

N/A Quadruplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS52 SUM

N/A Single

N/A 25 mm

N/A 2.0472 in52 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 DUM

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

MM25BS52 TUM

N/A Triplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS52 QUM

N/A Quadruplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS52 SUL

N/A Single

N/A 25 mm

N/A 2.0472 in52 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 DUL

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

MM25BS52 TUL

N/A Triplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS52 QUL

N/A Quadruplex

N/A 25 mm

N/A 2.0472 in52 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 6100 lbf27100 N

N/A 5850 lbf26000 N

N/A STEEL

N/A

MM25BS62 SUH

N/A Single

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 DUH

N/A Duplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.1812 in30 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 TUH

N/A Triplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 QUH

N/A Quadruplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 SUM

N/A Single

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 DUM

N/A Duplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.1812 in30 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 TUM

N/A Triplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 QUM

N/A Quadruplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 SUL

N/A Single

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 DUL

N/A Duplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.1812 in30 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 TUL

N/A Triplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM25BS62 QUL

N/A Quadruplex

N/A 25 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 2.3624 in60 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM30BS62 SUH

N/A Single

N/A 30 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM30BS62 DUH

N/A Duplex

N/A 30 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.1812 in30 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A

MM30BS62 TUH

N/A Triplex

N/A 30 mm

N/A 2.4409 in62 mm

N/A 0.5906 in15 mm

N/A 1.7718 in45 mm

N/A 60 º

N/A 8000 lbf35600 N

N/A 6700 lbf29800 N

N/A STEEL

N/A