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Free wheel at rollers and bushings for centering, with arm for reaction
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The different versions in this product group feature centrifugal lift-off sprags. This means that in the overrunning mode the sprags operate free of contact with the stationary member above a certain, given speed (machine normal working direction of rotation). This group includes built-in types without integral bearing support (RSCI series) and self-contained versions with integral bearings, lubrication and sealing (RIZ series). Built-in versions are usually lubricated by the machine lubrication system whereas the self-contained types are normally grease lubricated.
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Automatic Backstops
The Need For Adequate Backstops
Positive protection against reverse torque runaways of inclined conveyor or elevator installations, and adequate provision for the safety of operating personnel can be assured by considering the following:
The causes of reverse torque loading conditions.
The importance of installing backstops on low speed headshafts -- where reverse torque loads originate.
Use of sound methods for selecting backstop sizes, based on many years of successful installations, rather than theoretical reverse torque calculations.
The basic design, operating principle and uniformly high torque capacity of Marland One-Way backstops.
The simple maintenance and lubrication requirements of the Marland design.
Features and Benefits
Long service life
Lower stresses
Full contact
Taconite seals
Positive triple sealing
Removable torque arm
Superior roller design
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Fitting a Bibbigard Backstop cuts out the danger of fully loaded conveyors running back for any reason. These non-lubricated,fail-safe products operate without reliance on a power source or manual operation: rapidly and effectively, every time.
Bibby Transmissions Torque Control Division also offers a wide range of Torque Limiters to protect plant and machinery from damage due to overload, and to protect production by minimising machine downtime in the event of a stoppage. Bibby Transmissions offer complete answers to the problems created by torque and the mechanical transmission of power with a wide range of quality products all backed by comprehensive design and manufacturing expertise, in-house test facilities and technical support.
Specify Bibby Transmissions products to protect your investment in people, plant
and production.
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