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  1. Power Transmission - Mechanical components
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Sprag backstop FRHD series
full-facebearinglow-speed

Sprag backstop - FRHD series - RINGSPANN - full-face / bearing / low-speed
Sprag backstop - FRHD series - RINGSPANN - full-face / bearing / low-speed
Sprag backstop - FRHD series - RINGSPANN - full-face / bearing / low-speed - image - 2
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Characteristics

Technology
sprag
Construction
full-face, bearing
Other characteristics
low-speed
Torque

Min.: 3,750 ft.lb

Max.: 900,000 ft.lb

Diameter

Min.: 3.44 in

Max.: 21 in

Rotational speed

Min.: 100 rad.min-1
(15.9155 rpm)

Max.: 620 rad.min-1
(98.6761 rpm)

Description

Low Speed Backstops FRHD with lever arm are sealed sprag freewheels with ball bearings. They are supplied oil-filled and ready for installation.

The Low Speed Backstops FRHD are arranged on through shafts or shaft ends.

Nominal torques up to 900 000 lb-ft.

Bores up to 21 inch.


Application as
  • Backstop
for installations with low speeds. The freewheels are designed for the use in inclined conveyor-belts, elevators or pumps. Taconite seals protect the freewheels from contamination with dust or dirt.



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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