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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

Max.: 900,000 ft.lb

Min.: 3,750 ft.lb

Diameter

Max.: 21 in

Min.: 3.44 in

Rotational speed

Max.: 620 rad.min-1
(98.6761 rpm)

Min.: 100 rad.min-1
(15.9155 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):

EXPOSIBRAM 2026
EXPOSIBRAM 2026

24-27 Aug 2026 Belo Horizonte (Brazil)

  • More information
    Electra Mining Africa
    Electra Mining Africa

    7-11 Sep 2026 Johannesburg (South Africa)

  • More information
    See all exhibitions

    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.