Cross Safegard Overload Clutches
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Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m Overload Protection Clutches OPC2009 INDEX BACK NEXT

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m The Company T.D. Cross Ltd., reserve the right to change without notification dimensional and/or product specification shown in this catalogue, and to add or delete any product from the range in the interests of product development. All products shown in this catalogue are offered subject to the standard “Terms and Conditions of Sale”, copies on request. T.D. Cross Ltd., reserve copyright of this catalogue. No part thereof may be reproduced without prior permission. Cross &...

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m Index 1 Overload Protection and Coupling Products Contents Page Types of Overload Protection 2 Torque Limiters 3 Morse Torque Limiter Dimensions 4 Metric Torque Limiter Dimensions 5 Torque Limiter Selection 6 Standard Torque Limiter Platewheels 7 Torque Limiter Couplings 8 Sheargard Clutch 9/10 Sheargard Couplings 11 Sheargard Clutch Wedge Pin Ratings and Installation 12 Crossgard Overload Clutches 13/14 Crossgard Type CG Clutch 15 Crossgard Type CG Couplings 16/17 Crossgard...

DRIVE SYNCHRONISATION DRIVE DISENGAGEMENT RESETTING METHOD BACKLASH OVERLOAD INDICATOR CAN PROVIDE SOFT START SET TORQUE ACCURACY % SHAFT RANGE mm MAX. TORQUE Nm MAX SHAFT SPEED rpm NO NO AUTO NONE* NONE YES 15% 5-120 10000 3000 YES YES MANUAL NONE OPTIONAL NO 10% 10-215 125000 1500 YES 1 REV AUTO MINIMAL YES NO 10% 8-130 7154 700 YES 1 REV AUTO NONE* YES NO 3% 7-70 785 1400 YES YES MANUAL MINIMAL YES NO 10% 8-50 450 1800 NO RATCHET AUTO MINIMAL YES NO 10% 7-110 8200 3300 YES NO AUTO MINIMAL YES NO 10% 7-110 8200 4000 YES 1 REV AUTO MINIMAL YES NO 10% 7-110 8200 1000 YES YES MANUAL MINIMAL...

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m Cross & Morse Torque Limiters 3 Cross & Morse Torque Limiters are low cost protection devices that limit torque in a drive system by slipping when a preset value is exceeded, in order to:- Prevent machine and drive damage. Eliminate costly machine downtime. Correct Spring Selection and Ratings Torque Limiter capacities are directly proportional to the spring force applied to the friction surfaces and it is a simple matter to increase capacity by increasing spring force - but...

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m 5 Standard Torque Limiters Metric Series Torque Limiters To extend the range of torque capability a new series of Torque Limiters is offered providing both smaller and larger sized units with a range of 1.5 to 10,000 Nm. These units are all to metric dimensions, and as with the original series are available with a roller chain coupling for shaft to shaft connection. For Torque Limiter selection refer to page 6. *Torque values can be halved by facing springs towards one...

At Minimum Torque 6 Torque Limiters Selection Selection Procedure (1)Platewheels require recess to fit Torque Limiter. (2)Platewheels for BS series chains requires recess to fit Torque Limiter. (3)Bushes require shortening to length indicated. (4)Two bushes required to total length indicated. For standard stock platewheels refer to page 7. Dimensions Torque Limiter Model Chain Size Model No. Bore Dia. mm Sprocket Min. Teeth Bush Length mm Sprocket Min. Teeth Bush Length mm Sprocket Min. Teeth Bush Length mm Sprocket Min. Teeth Bush Length mm Sprocket Min. Teeth Bush Length mm Sprocket Min....

8 Torque Limiter Couplings Torque Limiter combined with Roller Chain Flexible Coupling The Torque Limiter Coupling combines overload protection with ability to connect in-line shafts. The unit consists of a standard Torque Limiter and platewheel connected to a special coupling sprocket by duplex Roller Chain. Available in eleven standard sizes, they are easy assembly units providing protection and reliability. For selection refer to page 6. *Weights are for Torque Limiter and Coupling unbored. Capacities and Dimensions Catalogue Number Max. Pall. mm Max. Angle Min. Max. Limiter mm Coupling...

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m 9 Sheargard Overload Clutches The Cross Sheargard clutch complements the range of Torque Limiters by providing machinery protection on applications where accurate torque control and shaft synchronisation are necessary; and when in the event of an overload, total disengagement of driving and driven members is required. The design of the Sheargard Clutches provides for the transmission of high torques (up to 125,000 Nm) with a compact, low inertia unit. Standard stock products...

Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m 350SGES 0.6 0.7° 33 300 19 28 45 114 115 72 48 57 9 85 500SGES 0.7 0.7° 45 1200 24 45 60 143 158 96 61 72 10 105 700SGES 0.9 0.8° 251 3000 28 65 75 183 202 120 75 92 16 148 800SGES 1.0 0.8° 306 4800 30 80 80 208 202 130 82 100 26 175 950SGES 1.4 0.8° 830 12000 45 100 100 249 294 160 97 130 22 215 11 Sheargard Flexible Couplings Sheargard Chain Couplings The standard Cross Sheargard unit combines with the Chain Coupling to provide stock overload couplings with minimum backlash...

The Crossgard series of overload protection clutches all use sprung loaded balls locked in detents to provide drive and overload control. The balls are random positioned in the clutch so drive can only be engaged in one relative angular position between driver and driven shafts, so ensuring full synchronisation of the drive at all times. In the event of an overload the balls are driven out of their detents to release the torque, and cause axial movement of the pressure plate which can be used to actuate a limit switch or proximity sensor to isolate the drive. All units are fitted with a...