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Industrial Ratchet Freewheels

Industrial Ratchet Freewheels
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Industrial Ratchet Freewheels and Adaptors Industrial Ratchet Freewheels provide positive one-way drive with high torque capacity within a small unit. A ratchet and pawl mechanism is used with materials and heat treatment selected for a long operating life, with safe, positive transmission. IRF’s are suited to low speed (up to 150 r.p.m.) overrun applications where shock loads may be encountered, such as Agricultural machinery. Standard stock units are available in two configurations; as standard sprocket for 1/2 inch pitch chains, or with a drilled flange to fit conveyor rollers, pulleys, or wheels. Standard units have threaded bore to cycle standards, but a range of Adaptors enable fitting to keyed shafting. IRF clutches are also stocked in part-assembled condition for reworking to custom design, including finish parallel bore and keyseat. Many special Industrial Ratchet Freewheels have been manufactured to meet customers’ requirements with torques over 1,000 Nm. Threaded Bore Diameter (1) ins mm 0.970 1.370 2.000 Freewheel Size I.R.F. Clutches with external mounting flange Power Transmission Solutions Standard Adaptor Size (1) M.P Clutch bore threaded 20 T.P B.S.W. R.H. Form. R.S.J. and N.V.F. threaded 24 T.P C.E.I. R.H. Form. .F. .I. .I. I.R.F. Sprockets to suit standard BS Series Chains Shroud Dia. B Standard Adaptor Size Chain Size Threaded Bore Diameter (1) ins mm Freewheel Size (1) All clutches except F10B are with 24 T.P C.E.I.R.H. Threaded Form. F10B Clutch has 20 T.P B.S.W. R.H. Thread. .I. .I. Steel Adaptors for Industrial Ratchet Freewheels These adaptors enable easy assembly of standard IRF’s to conventional keyed shafting. Adaptor Size (1) Adaptor F11 has 20 T.P B.S.W. Thread. .I. Adaptors are solid bore, (except F11 which has 15mm plain bore) and can be finished bored and keyed to customers specifications. Max. bore = 0.6B. Catalogue Selection INDEX Freewheel Clutches :

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