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  1. Power Transmission - Mechanical components
  2. Mechanical Transmission
  3. Sprag one-way clutch
  4. RINGSPANN
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Sprag one-way clutch BM series
with internal bearingsfull-facebackstop

Sprag one-way clutch - BM series - RINGSPANN - with internal bearings / full-face / backstop
Sprag one-way clutch - BM series - RINGSPANN - with internal bearings / full-face / backstop
Sprag one-way clutch - BM series - RINGSPANN - with internal bearings / full-face / backstop - image - 2
Sprag one-way clutch - BM series - RINGSPANN - with internal bearings / full-face / backstop - image - 3
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Go to the RINGSPANN website for more information

Characteristics

Technology
sprag
Construction
with internal bearings, full-face
Applications
backstop
Torque

Max.: 57,500 Nm
(42,409.823583 ft.lb)

Min.: 150 Nm
(110.634322 ft.lb)

Diameter

Max.: 150 mm
(5.91 in)

Min.: 15 mm
(0.59 in)

Rotational speed

Max.: 3,500 rad.min-1
(557.0423 rpm)

Min.: 250 rad.min-1
(39.7887 rpm)

Description

Complete Freewheels BM are sealed freewheels with ball bearings. They are supplied oil-filled and ready for installation, on customer request with biodegradable oil.

Besides the standard type, the type with sprag lift-off X is available for wear-free freewheeling operation at high speed rotating inner ring.

Nominal torques up to 57 500 Nm.

Bores up to 150 mm. A multitude of standardized bore diameters are available with short delivery times.


Application as
  • Backstop
  • Overrunning Clutch
  • Indexing Freewheel

Catalogs

Exhibitions

Meet this supplier at the following exhibition(s):

EURO EXPO INDUSTRIMÄSSE
EURO EXPO INDUSTRIMÄSSE

4-05 Nov 2026 Gävle (Sweden)

  • More information
    Go to the RINGSPANN website for more information

    Other RINGSPANN products

    Freewheels

    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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