TORQ/GARD™ OVERLOAD CLUTCH - Industrial Motion Control, LLC
Contents
1. If the Bushing was used on the detector end without the detector the selection would be the same as Example 1 Table B TGC60 Clutch Detector End Set Scr Length 2 Reqd Shaft Dia to Retain Detector Cam Set Scr Length 1 Reqd to Retain Detector Cam Over Key 750 Dia 190 32UNF 2A x 75 Lg 190 32UNF 2A x 38 Lg 9375 Dia 1 125 Dia 190 32UNF 2A x 62 Lg 190 32UNF 2A x 38 Lg 1 250 Dia 190 32UNF 2A x 50 Lg Adapter End Set Scr Length 2 Reqd Adapter End Shaft Dia of Clutch 190 32UNF 2A x 38 Lg Set Scr Length 1 Reqd Over Key Adapter End of Clutch 750 Dia 190 32UNF 2A x 50 Lg 190 32UNF 2A x 19 Lg 9375 Dia 1 125 Dia 190 32UNF 2A x 38 Lg 190 32UNF 2A x 19 Lg 1 250 Dia 190 32UNF 2A x 25 Lg 190 32UNF 2A x 19 Lg Table C TGC200 Clutch Detector End Set Scr Length 2 Reqd Shaft Dia to Retain Detector Cam Set Scr Length 1 Reqd to Retain Detector Cam Over Key 9375 Dia 1 250 Dia 250 20UNC 2A x 1 0 Lg 250 20UNC 2A x 50 Lg 1 250 Dia 1 500 Dia 250 20UNC 2A x 88 Lg 250 20UNC 2A x 50 Lg 1 500 Dia 1 750 Dia 250 20UNC 2A x 75 Lg 250 20UNC 2A x 50 Lg 1 750 Dia 1 9375 Dia 250 20UNC 2A x 62 Lg Adapter End Set Scr Length 2 Reqd Adapter End Shaft Dia of Clutch 250 20UNC 2A x 50 Lg Set Scr Length 1 Reqd Over Key amp Adapter2. K 1 2 13 X 1 75 HHCS Gear Belt Pulley Installation Follow the above mounting instructions for the Browning Torq Gard Gear Belt Pulleys using the longer Hex Head Cap Screws supplied with the pulleys Chain Coupling Installation 1 Select the Browning Chain Coupling components from page 6 for the applicable Torq Gard Model 2 Mount the single strand sprocket per the above Sprocket Installation instructions 3 Place the Split Taper Bushing Sprocket over the Single Sprocket with the corresponding teeth in alignment 4 Secure the two sprockets by wrapping the double strand roller chain around the sprockets insuring that the sprocket teeth fully engage the chain 5 Insert the chain connecting link in the chain ends and lock with the spring clip supplied with the connecting link When assembled correctly the Split Taper Bushing Sprocket will float for maximum misalignment capability Ever Flex Coupling Installation 1 Select the correct Ever Flex Coupling and Adapter Plate from page 6 2 Attach the Adapter Plate to the mounting lugs with three 4 a a tm 3 Allen Flat Head Cap Screws 4 supplied with the adapter EX Ve 3 Mount the Ever Flex half coupling on the Adapter Plate with the eight 8 Head Cap Screws supplied with the Adapter Plate Quantity 10 Hex Head Cap Screws are supplied with Adapter Plate 400CAP9 and 800CAP10
3. Mounting The Torq Gard The Torq Gard Clutch hub is machined to its maximum bore diameter Shafts smaller than the maximum diameter are accommodated with standard Browning Bushing Kits as shown on page 6 The bushing kits are complete with bushing key and shaft set screws Note Six 6 set screws are supplied in four 4 lengths Warning The correct length set screws must be used as the clutch will not release if the set screws extend beyond the hub and hit the adapter mounting lugs The Torq Gard Clutch can be shaft mounted from the adapter or detector end of the hub The required shaft set screw lengths vary depending on the bushing selected They will also vary in length if used on the detector end in conjunction with the detector mechanism Tables B C and D include all set screw combinations for any bushing or mounting option Example 1 A TGC60 Clutch requires a 750 inch diameter shaft mounted on the adapter end Selection A Browning 60BU012 Bushing Kit is chosen from page 6 The correct set screws from Table B adapter end Qty 2 190 32UNF 2A x 50 Long Qty 1 190 32UNF 2A x 19 Long over key Example 2 A TGC60 Clutch requires a 750 inch diameter shaft mounted on the detector end with the detector mechanism Section A Browning 6080012 Brushing Kit The correct set screws from Table B detector end Qty 2 190 32UNF 2A x 75 Long Qty 1 190 32UNF 2A x 38 Long over key NOTE
4. this position tends to absorb peak starting torques The Torq Gard Clutch is delivered with the torque set at the low end of its torque range 1 Turn the single Hex Socket Head adjusting nut clockwise to increase the Torque Setting Refer to Table E Note 1 2 inch Hex Keyed Allen Wrench is required Table E APPROXIMATE TORQUE IN LBS PER TURN MAXIMUM TURNS TGC60 TGC200 TGC400 TGC800 2 Sighting the front face of the adjusting nut with the Torque Meter Lines on the nameplate indicates the approximate torque setting 3 The Min line on the nameplate is the point at which the adjusting nut is threaded Before setting the torque Perma Lok HM118 should be applied to the exposed threads 4 The first line on the Torque Meter beyond Min represents the low torque setting Warning The clutch should not be operated at torque settings below this line 5 Do not set torque if the clutch is disengaged as an erroneous torque setting will result Warning Do not remove the adjusting nut Extremely fine threads are used to reduce the possibility of the adjusting nut losing its setting If the adjusting nut is removed for any reason including lubrication upon replacing hand thread the first few turns or cross threading may occur Tripping torque can be established by progressively increasing the torque setting until the clutch no longer trips under starting loads I
5. 45 1 11 16 200BU111 2 1 4 80080204 60 60 60 1 3 4 200BU112 2 1 16 NONE Model Part No Dia Grooves Width G60A72K 72 1 15 16 NONE TGC60 TG60H100K 9 549 60 1 TGC200 TG72H300K 11 459 72 3 FOR NO 80 1 PITCH G80A28K 28 G80A36K 36 EVER FLEX COUPLINGS 166400 TG80A45K 45 i GA 0 pas OE ee ct 680 72 72 PartNo PartNo Bushing FOR NO 100 1 1 4 PITCH TGC60 CHCFR5H 018639 H TG100A28K 28 TGC200 CHCFR8P C18640 P1 scai E 166400 CHCFR9Q 018641 01 50 TGC800 CHCFR10Q C18642 01 TG100A72K 72 court Automation Robohand FERGUSON camco CAMCO amp FERGUSON Products 1444 South Wolf Road Wheeling IL 60090 USA ph 847 459 5200 toll free 800 645 5200 fax 847 459 3064 camco destaco com ISO 9001 2000 Registered DE STA CO Headquarters Auburn Hills Michigan USA 248 836 6700 marketing destaco com www destaco com This publication is for information purposes only and should not be considered a binding description of the product except is confirmed in writing by Industrial Motion Control LLC DE STA CO DE STA CO Europe Germany 49 6171 705 0 europe destaco com DE STA CO Asia Thailand 66 2 326 0812 info destaco com DE STA CO South America Brazil 0800 124070 samerica destaco com DE STA CO 2004 2015 All rights reserved Printed in U S A SKU 0082 REV 05 2015
6. 8168 A 58168 A 58171 A 15727 A 13407 A 16685 A 16685 4 1 Body D 58675 D 58675 0 58695 0 65632 0 65927 0 18715 0 18715 5 1 Lever B 58202 B 58202 B 58236 B 16510 C 13401 C 16677 C 16677 6 1 Dowel Pin A 58159 A 58159 A 58165 A 17647 A 17648 A 26007 89 A 26007 89 7 2 Bearing A 61684 A 61684 A 61687 B 15732 1 A 14407 B 15732 4 B 15732 4 8 1 Dowel Pin A 58158 A 58158 A 58164 A 17650 A 26007 37 A 26007 65 A 26007 65 9 1 Bearing A 61685 A 61685 A 61688 A 15730 1 A 14409 A 16683 A 16683 10 1 Gasket 58173 58173 B 58181 B 73040 0 73044 C 16679 C 16679 11 2 O Ring A 58182 1 A 58182 1 A 58182 2 15729 2 14399 A 15729 3 A 15729 3 12 2 Bearing A 61683 A 61683 A 61686 15732 3 14408 B 15732 5 B 15732 5 13 2 Thrust Washer A 58172 A 58172 A 58174 A 16511 B 13406 B 16681 B 16681 14 1 Drive Hub B 58609 B 58609 B 58668 B16506 C 76760 D 18719 D 18719 15 1 Cover B 58250 B 58250 B 58260 0 65649 D 65879 D 16675 D 16675 16 1 Detector Plate B 58794 B 58794 B 58383 B17056 C 16927 0 17076 C 17076 16A 1 Prox Detector Plate Assy B 71122 C 71123 C 71126 C 71126 17 1 Cam Detect Plate B 58795 B 58795 B 58385 B 17055 B 76762 0 17077 0 17077 18 3 Spring A 53740 4 A 53740 4 A 53052 4 A 17059 16989 17788 17788 19 2 RollPin A 26023 35 26023 35 26023 37 73403 1 A 73403 2 26023 71 26023 71 20 5 HexHD Cap Screw A 26015 17 26015 17 26015 23 18874 2 A 26002 15 20 7 HexHD Cap Scre
7. Automation Robohand FERGUSON camco SERVICE MANUAL TORQ GARD OVERLOAD CLUTCH WARNING This is a controlled document It is your responsibility to deliver this information to the end user of the CAMCO or FERGUSON product Failure to deliver this could result in your liability for injury to the user or damage to the machine For copies of this manual call your Customer Service Representative at 800 645 5207 torg gard Installation Operation and Maintenance Instructions 1 Read your Torg Gard Installation Operation Instructions thoroughly before operating the unit for your safety and the protection of your equipment 2 Double check to be sure the power is off and cannot be turned on while working on the equipment 3 Electrical power should be disconnected at the fuse box circuit breaker or motor starter 4 The Torq Gard Clutch is designed to protect your machine and will not protect against bodily injury 5 Keep all objects such as hands clothing tools etc away from rotating or moving parts 6 Use safety glasses or equivalent to protect your eyes 7 Do not manually re engage the Torq Gard Clutch Refer to Automatic Reset instruction 8 Do not adjust the torque while the clutch is disengaged Refer to Torque Setting instruction 9 Do not exceed the recommended maximum RPM Refer to Rating Chart 10 The detector mechanism must electrically disconnect the prime mover at th
8. End of Clutch 9375 Dia 1 250 Dia 250 20UNC 2A x 75 Lg 250 20UNC 2A x 25 Lg 1 250 Dia 1 500 Dia 250 20UNC 2A x 62 Lg 1 500 Dia 1 750 Dia 250 20UNC 2A x 50 Lg 250 20UNC 2A x 25 Lg 250 20UNC 2A x 25 Lg 1 750 Dia 1 9375 Dia 250 20UNC 2A x 38 Lg 250 20UNC 2A x 25 Lg Table D TGC400 and TGC800 Clutch Detector End Set Scr Length 2 Reqd Shaft Dia to Retain Detector Cam Set Scr Length 1 Reqd to Retain Detector Cam Over Key 375 Dia 1 688 Dia 975 16UNC 2A 1 25 Lg 375 16UNC 2A x 62 Lg 1 750 Dia 2 125 Dia 375 16UNC 2A x 1 00 Lg 375 16UNC 2A x 62 Lg 2 125 Dia 2 4375 Dia 375 16UNC 2A x 88 Lg Adapter End Set Scr Length 2 Reqd Adapter End Shaft Dia of Clutch 375 16UNC 2A x 62 Lg Set Scr Length 1 Reqd Over Key Adapter End of Clutch 1 375 Dia 1 688 Dia 375 16UNC 2A x 88 Lg 375 16UNC 2A x 38 Lg 1 750 Dia 2 125 Dia 375 16UNC 2A x 62 Lg 375 16UNC 2A x 38 Lg 2 125 Dia 2 4375 Dia 375 16UNC 2A x 50 Lg 9 5 16UNC 2A x 38 Lg Select the Browning Torg Gard Bushing Kit from page 6 3 required Refer to tables B C or D for the correct shaft set screws Slide the bushing with the mating key on the shaft Note The use of LOCTITE C5 Anti Seize lubricant is recommended to ease assembly of the bushing to the shaft and the Clutch to the bushing The shaft le
9. e recommended RPM settings Refer to Overload Detection instruction 11 Shaft mounting set screws must clear the mounting bosses or the clutch will not release upon overload Refer to Mounting the Torq Gard instruction 12 Shaft and detector mounting set screws must be tight and the recommended number used Refer to Mounting the Torq Gard instruction The above list includes major safety points to be observed but should not be considered as limiting in safety precautions to be followed Operating Principle Torq Gard Overload Clutches help protect the entire drive train of your machinery from damage due to excessive torque generated by overloads and jamming The torque is adjusted by turning the single hex socket head control which adjusts the Clutch precisely to any setting within its load range A spring loaded cam follower seated in a single hub cam detent causes the hub and clutch body to rotate as a unit The two point contact of the follower produces equal forces within the cam detent minimizing the effect of breathing found in conventional clutches When the pre set torque limit is exceeded by an overload condition the follower is instantly released from the cam detent disconnecting the hub from the body Either the hub or the body may be used as the input or output NOTE During overload the produces a loud audible report which is a normal operating characteristic of t
10. f the tripping torque value is known the clutch may be pre set with a torque wrench or a torque arm and calibrated spring scale The Torq Gard may also be sized by applying one of the following formulas Torque In Ibs Horsepower HP x 63025 RPM Torque In lbs x RPM 63025 OR Horsepower Tripping Torque Operating Torque x Service Factor Note The nameplate contains a sensitized rectangle on which the torque setting may be recorded with ball point pen or a numbering die Warning The Torq Gard Clutch is not a FAIL SAFE device and cannot be used on overhauling or holding load applications TORQ GARD RATINGS Weight Inertia Bore Dia WK2 Torque in Ibs Models Min Max Ibs Max inches 1 2 1 2 3 4 1 1 4 1 15 16 2 76 2 76 Automatic Reset The Torq Gard Clutch is automatically reset by jogging the motor after the overload has been corrected At speeds under 50 RPM the will re engage without jogging upon starting the motor The clutch will not re engage if the overload exceeds the torque setting Warning Do not re engage the Torq Gard manually When the clutch snaps into engagement injury could occur if the operator s hand is near a chain and sprocket or belt drive Single Position The always resets in the same position when tripped It is an excellent choice in applications tha
11. he clutch In direct coupled applications the modular designed Torq Gard can be used with Browning Ever Flex Couplings or Chain Coupling Kits without modification to the clutch or couplings Split taper bushings are available for the coupling output mechanical torque limiting overload clutch Browning single strand sprockets for No 40 60 80 and 100 ANSI Standard Roller Chain Drives mount directly to the clutch Browning Torq Gard Gearbelt Pulleys are also available for 1 2 Pitch Belts Before mounting the clutch on the driving or driven shaft your choice of coupling or sprocket should be attached to the Torq Gard Clutch Sprocket Installation Browning Single Strand Sprockets register with the drilled and tapped mounting lugs on the adapter end of clutch Torg Gard Chain Drives can be used as the driving or driven member See page 6 for sprocket availability 1 Place the sprocket on the registered mounting lugs 2 Select the correct length Hex Head Cap Screws 3 required from Table A Warning Short Screws may strip the mounting lug threads 3 For maximum locking effect medium spring lock washers should be used under the Hex Head Cap Screws Table A Sprocket Mounting Hardware TG3 6 TG35A__K 8 32 X 50 HHCS TG20 201040 4 K 740 24 X 62 HHCS TG60 TG40A K 1 4 20 X 75 HHCS TG200 TG60A K 3 8 16 X 1 00 HHCS TG400 TG80A K 1 2 13 X 1 50 HHCS TG800 TG100A
12. hould be set higher than the point at which the clutch will nuisance trip on starting but below the maximum torque value the machine can safely absorb EVER FLEX TORQ GARD COUPLING MOTOR GEAR DRIVEN REDUCER MACHINE MACHINE Figure 4 Direct Drive application with the Torq Gard mounted on the low speed output shaft of the reducer The Torq Gard is shown with a Browning Ever Flex half coupling which mounts on the clutch adapter without modification Browning Chain Coupling Kits are also available for the Torq Gard when greater misalignment capabilities are required Either side of the Torq Gard can be used as the input The should not be used on the high speed input side of the reducer Clutch sensitivity becomes a function of the reducer s gear ratio As an example when used with a 100 to 1 reducer a 100 inch pound torque variation on the output side will reflect only a 1 inch pound change on the input side Do not exceed the maximum RPM shown in the Torq Gard selection table TORQ GARD TORQ GARD ROLLER CHAIN ROLLER CHAIN SPROCKET SPROCKET GEAR MOTOR GEAR MOTOR Mounting the clutch on the output of the gear motor or reducer provides the most economical clutch assembly The Torq Gard is designed to protect the weakest link in the drive system The Torq Gard is mounted on the driven machine and powered through a chain and sprocket drive Mounting the clutch in
13. ngth must be at least equal to the bushing length to insure engagement of the Torq Gard bearings Limited shaft lengths or high overhung load applications require additional outboard bearing support Browning Bushings are manufactured specifically to fit the entire length of the hub which provides additional support Again check Tables B C or D to insure that the correct length set screws are used and that they will engage the shaft holes in the Clutch hub Apply Perma Lok HM118 to the set screws and mating tapped Warning High inertia loads reversing loads excessive vibration or continual tripping may require the use of Perma Lok HM160 6 Tighten set screws against shaft and key Warning Check to insure that the set screws do not extend beyond the hub on the adapter end When used on the detector end the set screws must also engage the detector cam but must not extend beyond the detector cam Overload Detection The axial movement of the Detector Mechanism when used in conjunction with a limit prox switch electrically disconnects the prime mover motor from the load The Detector Mechanism consists of a spring loaded plate mounted on the clutch cover plate cam When an overload occurs the cam releases the detector plate a sufficient distance to actuate a limit prox switch When the overload has been cleared the re engagement of the clutch automatically resets the detector mechanism Warning Detector system
14. ree shallow holes in the Torq Gard cover B Place the white detector plate guide pins in the three deep holes in the cover Note The pins are registered to fit in one position only Place the black detector cam on the clutch hub with flat side up Rotate the cam until each cam lobe is directly over the detector plate ears and the set screw holes are aligned with the set screw holes in the hub Note The clutch must be in its engaged position for proper alignment of the detector mechanism Secure the detector cam to the clutch hub with the correct length set screws using Perma Lok HM118 Refer to Tables B C or D for the correct shaft set screws Warning Factory mounted detector mechanisms utilize set screws for shipping purposes only The correct length of the set screws is determined by the shaft diameter used Torque Setting The torque is infinitely adjustable within the nameplated torque limits of the clutch Determine the operating and tripping torque required to drive your machine A Operating torque is the normal full load torque required by the application B Tripping torque which is usually higher than operating torque depends on the starting torque requirements of the application and the location of the Torg Gard Clutch C Mounting the clutch away from the motor tends to absorb peak starting torques through power transmission and machine components Refer to Fig 4 D Tripping torque s
15. s are recommended on all applications and mandatory on the following TG60 TG200 At speeds over 100 RPM TG 400 TG800 At all speeds Infinitely high shock loads can occur depending on the type of jam or overload The detector system further protects your equipment under these conditions On high inertia applications breaking the prime mover may have to be considered 1 The limit prox switch must have a rigid mounting 2 Locate the limit prox switch so the detector plate travel will acuate the limit prox switch Note Refer to Figure 1 and Figure 2 for typical installations Figure 1 mounting is preferred for reasons of rigidity Figure 1 Figure 2 3 Referto the Torq Gard dimension prints on page 5 for the detector plate travel 4 When mounting the limit prox switch consult the manufacturer s specifications for pre travel and overtravel 5 Wire the limit prox switch in parallel with the start contactor to permit motor starting after the overload has been cleared Note Refer to Figure 3 Typical Wiring Diagram Limit prox Switches are available with additional contacts to further acuate warning alarm systems Typical Wiring Diagram TORQ GARD DETECTOR PLATE LIMIT PROX SWITCH DISC 1 110 0 5 E 120 0 i M Qj ol3 L30 9 Figure 3 6 The detector mechanism can be installed in the field A Place the three 3 detector springs in the th
16. t must remain registered or timed All Torq Gard Clutches are fully reversible Lubrication The Torq Gard is factory lubricated with Mobil XHP 222 and does not require additional lubrication for many years under normal Operating conditions Clutches used in extreme operating applications may be opened for regreasing Open clutch for greasing by removing torque adjusting nut detector system cover bolts and then tap hub end opposite cover with a soft hammer Do not pry open at cover split line Apply grease XHP 222 or equiv to hub bearing journals hub cam track follower thrust washer surfaces and all needle bearings torgq gard 91 250 MAX BORE 250 WIDE x 12 KEYWAY x LUG PATTERN WILL ACCEPT THE FOLLOWING FOR SHAFTS SMALLER THAN 91 250 USE BROWNING BROWNING SPROCKETS TC40 A26K 36 45K 60K AND 72K KITS CHART LOWER LH CORNER BROWWNG GEARBELT PULLEY TG60H 00X TGC 60 TCG 200 TGC 400 and 800 torq gard Parts List Models TG and TGC PART NUMBER Item Qty Description 3 6 20 60 200 400 800 1 1 Adjusting Nut A 58211 A 58211 A 58238 A 16512 A 16346 B 16680 B 16680 2 1 Spring A 58255 1 A 58255 2 A 58255 3 A 15731 13732 16682 1 17538 1 2 1 Spring A 16682 2 A 17538 2 3 1 Button A 5
17. w A 18876 2 18876 2 21 1 Soc HD Set Screw A 26005 16 A 26005 16 A 26005 16 A 26005 39 A 26005 45 A 26005 77 A 26005 77 22 2 Soc HD Set Screw A 26005 17 A 26005 17 A 26005 17 A 26005 40 A 26005 46 A 26005 79 A 26005 79 SINGLE STRAND SPROCKETS r TORO GARD BUSHING KITS _ TORO GARD CHAIN COUPLING KITS ANSI Standard Roller Chain Shaft Bushing Shaft Bushing Shaft Bushing Single Single Sprocket Coupling FOR NO 40 1 2 PITCH Model Dia Kit No Model Dia Kit No Model Dia Kit No Model Strand Split Taper Chain Sprocket No 34 6080012 15 16 200BU015 1 3 8 800BU106 aro ME o MER Model Part No Teeth 15 16 6080015 1 200BU100 1 7 16 800BU107 640 26 26 TGC60 1 60BU100 1 1 16 200BU101 1 1 2 800BU108 TGC60 TG40A26K 40 26 04026 TG40A36K 36 1 1 8 6080102 1 1 8 200BU102 1 5 8 80080110 TGC200 TG60A26K 60P26 C6026 TGC60 640 45 45 1 1 4 NONE 1 3 16 20080103 TGC400 1 11 16 80080111 TGC400 80028 C8028 TG40A60K 60 20mm 60BU020mm 1 14 200BU104 AND 1 3 4 800BU112 TGC800 TG40A72K 72 25mm 60BU025mm TGC200 1 5 16 20080105 TGC800 1 7 8 800BU114 28mm 60BU028mm 1 3 8 200BU106 1 15 16 800BU115 FOR NO 60 3 4 PITCH 1 7 6 200BU107 2 800BU200 TORQ GARD GEARBELT PULLEYS G60A26K 26 1 1 2 200BU108 2 1 8 80080202 FOR 1 2 PITCH BELTS TG60A36K 36 1 5 8 200BU110 2 3 16 800BU203 Furl eene arent TGC200 G60A45K
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