Standard SP Series Clutch SP311P Series www.jbj.co.uk/mechanical-power-conversion.html #DriveLineHarmony Dimensions are in mm (inches) 88.887 (3.499) 22.2 SQ. x 222.2 KEY (.875 SQ x 8.75) 254.0 (10.00) 352.8 (13.88) 97.0 (3.82) 30.1 (1.19) 39.6 (1.56) 71.99 (2.83) 100.1 (3.96) The following general formula should be used for determining the actual applied load: L = Actual applied load kg (lbs) N = Shaft speed (rpm) D = Pitch diameter mm (inches) of pulley, etc. F = Load factor, 1.0 for chain or gear drive, 1.5 for timing belts, 2.5 for all V belts, 3.5 for flat belts. LF = 2.1 for reciprocating compressors and other severe shock drives and 1.8 for large inertia type drives (i.e. Crushers, chippers, planers, etc.) Compound Drives and Power Engaged Power Take-Off applications must have written factory review. SP311P2 SP311P3 RPM PTO Model 25.4 (1.0) 50.8 (2.0) 76.2 (3.0) 101.6 (4.0) 127.0 (5.0) X Distance, mm (in) – see diagram SP311P1 & SP311P2 – Allowable Side Load, kg (lbs) 1000 1200 1800 3000 152.4 (6.0) 2238 (4935) 1760 (3880) 1451 (3200) 1234 (2720) 1073 (2365) 948 (2090) 850 (1875) 771 (1700) 177.8 (7.0) 203.2 (8.0) 2155 (4750) (Imperial) L = x F x LF 126,000 x HP N x D (metric) L = x F x LF 1945010 x kW N x D 26
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