100.076 (3.94) 368.3 (14.50) 203.2 (8.00) 25.4 (1.00) 32.766 (1.29) A B C Crank Shaft Flange Face 142.748 (5.62) 3.048 (0.12) X Side Load CL Key ⁷⁄ x ⁷⁄ x 6¹⁄ D Dia. 215.900 (8.500) 216.027 (8.505) Plate Bore. 101.6 (4.00) 196.85 (7.75) Dia. 85.852 (3.38) A support plate is recommended for all applications involving side loads and is mandatory when the side load times (14.50 + x) exceeds a bending moment of 66,000 lbs.-in. Oil E Dia. Rubber block drive power take-off, features oil lubricated roller bearings For heavy duty applications not requiring a cut-off clutch. The need for a flywheel pilot bearing has been eliminated in the 14 inch size unit shown above. The rubber block drive absorbs the normal misalignment usually found between the engine flywheel and the power take-off input member in an insulation. The rubber block drive uses an aluminium drive ring. The blocks are installed on lugs milled around the circumference of the cast iron mating spider. These blocks are precision molded to involute gear tooth form. Two types of blocks are currently available. A-3905-B Blocks A-3905-E Blocks A-3905-B Blocks A-3905-E Blocks A-3905-B Blocks A-3905-E Blocks A-3905-B Blocks A-3905-E Blocks Continuous Rating Intermittent Rating Maximum Input Torque Nm (Lbs.Ft.) Max. Peak Compressor Torque NM (Lbs.Ft.) Continuous Ambient Temperature Range Model Number Drawing Number Max. Safe RPM Capacity Data The above torque values apply only to internal combustion engine drives. Multiply above ratings by 1.28 for electric motor drives. 14" Double Row Rubber Block Direct Drive PTO RB Series Specifications subject to change without prior notice in the interest of continual product improvement. Contact jbj Techniques Limited tel: +44 (0)1737 767493 or email: info@jbj.co.uk, your Twin Disc representative for engineering specifications. Patent pending. www.jbj.co.uk/mechanical-power-conversion.html #DriveLineHarmony 54 Dimensions Millimetres (Inches) SAE No. A B C D E 530.098 (20.870) 511.048 (20.120) 215.773 (8.495) 88.8746 (3.499) 1 552.45 (21.75) 530.352 (20.880) 511.175 (20.125) 215.900 (8.500) 88.900 (3.500) 679.323 (26.745) 647.573 (25.495) 215.773 (8.495) 88.8746 (3.499) 0 711.20 (28.00) 679.577 (26.755) 647.700 (25.500) 215.900 (8.500) 88.900 (3.500) RBB-14-OP X-9811 2400 1620.202 (1195) 2074.401 (1530) 3735.278 (2755) 5809.680 (4285) 7260.405 (5355) 2915.009 (2150) Max.82.22°C Min.-40°C Max. 180°F Min. -40°F Max. 121°C Min.-40°C Max. 250°F Min. -40°F
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