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SF … P series

SF … P series

Product catalog summary

Overview: The document provides technical specifications and guidelines for Cage Freewheels SF … P, designed for assembly with inner and outer rings, suitable for applications such as backstop, overrunning clutch, and indexing freewheel. These freewheels are characterized by high run out (T.I.R.) and use sprags.

Specifications: The Cage Freewheels SF … P can handle nominal torques up to 5,800 Nm. The document lists various models with specific dimensions and torque capacities, such as SF 37-14.5 P and SF 127-25 P, detailing their nominal torque, dimensions (J, D, B, K), sprag quantity, and weight.

Mounting and Usage: The lateral guidance of the freewheels can be achieved using a shoulder on the outer ring or guard rings/discs. Torque transmission can be increased by arranging multiple cages side by side, with consultation from RINGSPANN recommended for transmissible torques. The document emphasizes the importance of ideal concentricity between the inner and outer rings for achieving theoretical nominal torque.

Ordering and Availability: An example for ordering is provided, such as the SF 44-14.5 P type for high run out (T.I.R.). The freewheels are available with short delivery times, and the maximum transmissible torque is twice the specified nominal torque.

Technical Considerations: The document advises consulting page 108 for technical points regarding sprag tracks and page 14 for determining selection torque. It notes that practical nominal torques are affected by bearing play and centering errors, which should be considered alongside existing run out (T.I.R.).

Catalog excerpts

Application as Backstop ► Overrunning Clutch ► Indexing Freewheel Features Cage Freewheels SF ... P are sprag freewheels to be installed between customer-supplied inner and outer rings. Nominal torques up to 5 800 Nm.

Open the catalog to page 1

99-2 Type for high run out (T.I.R.) For universal use Cage Freewheels SF ... P are available with short delivery times. The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque. The theoretical nominal torque applies only for ideal concentricity between the inner and outer ring.In practice, the concentricity is affected by the bearing play and centering errors of the neighbouring parts. Then the nominal torques specified in the table apply, whilst taking into consideration the existing run out (T.I.R.). Mounting The lateral guidance...

Open the catalog to page 2

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