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  1. Power Transmission - Mechanical components
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  3. Sprag one-way clutch
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Sprag one-way clutch BM…X series
with internal bearingsfull-facebackstop

Sprag one-way clutch - BM…X series - SIAM RINGSPANN - with internal bearings / full-face / backstop
Sprag one-way clutch - BM…X series - SIAM RINGSPANN - with internal bearings / full-face / backstop
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Characteristics

Technology
sprag
Construction
with internal bearings, full-face
Applications
backstop, overrunning clutch
Other characteristics
low-speed
Torque

Max.: 42,500 Nm
(31,346.391344 ft.lb)

Min.: 420 Nm
(309.776103 ft.lb)

Diameter

Max.: 150 mm
(5.91 in)

Min.: 15 mm
(0.59 in)

Rotational speed

Max.: 1,700 rpm
(10,681.415 rad.min-1)

Min.: 84 rpm
(527.7876 rad.min-1)

Description

for keyway connection on the outer ring with sprag lift-off X Features Complete Freewheels BM … X are sealed freewheels with ball bearings. They are supplied oil-filled and ready for ­installation. Besides the standard type, the type with sprag lift-off X is available for wearfree freewheeling operation at high speed rotating inner ring. Nominal torques up to 42 500 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

No catalogs are available for this product.

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Exhibitions

Meet this supplier at the following exhibition(s):

SPS 2026
SPS 2026

24-26 Nov 2026 Nuremberg (Germany) Hall 3 - Stand 419

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    Other SIAM 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.