Clutch Couplings

PT Tech has been designing custom clutch couplings since the early 1980’s.  These usually incorporate a one-way clutch and are designed to provide backup drive systems, chain driven inspection and creep drives for conveyors and “Sunday Drives” for kilns and other equipment.  They are used to prevent the main drive from dangerously overspeeding the auxiliary drive or from damage caused by rapid cooldown.

SGK Series

SGK-410-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 200 lb·ft
Max. Overrunning Speed 3,600 rpm
Max Bores B1 Overrunning End Square Key 2.250 in
A – Outside Diameter 4.56 in
L – Distance between Shaft Ends 6.23 in

SGK-410-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 200 lb·ft
Max. Overrunning Speed 3,600 rpm
Max Bores B1 Overrunning End Square Key 2.250 in
A – Outside Diameter 4.56 in
L – Distance between Shaft Ends 6.23 in

SGK-415-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 600 lb·ft
Max. Overrunning Speed 3,000 rpm
Max Bores B1 Overrunning End Square Key 2.750 in
A – Outside Diameter 6.00 in
L – Distance between Shaft Ends 7.68 in

SGK-415-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 600 lb·ft
Max. Overrunning Speed 3,000 rpm
Max Bores B1 Overrunning End Square Key 2.750 in
A – Outside Diameter 6.00 in
L – Distance between Shaft Ends 7.68 in

SGK-425-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 2,400 rpm
Max Bores B1 Overrunning End Square Key 3.625 in
A – Outside Diameter 8.38 in
L – Distance between Shaft Ends 8.48 in

SGK-425-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 2,400 rpm
Max Bores B1 Overrunning End Square Key 3.625 in
A – Outside Diameter 8.38 in
L – Distance between Shaft Ends 8.48 in

SGK-430-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,000 rpm
Max Bores B1 Overrunning End Square Key 4.375 in
A – Outside Diameter 9.44 in
L – Distance between Shaft Ends 10.47 in

SGK-430-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,000 rpm
Max Bores B1 Overrunning End Square Key 4.375 in
A – Outside Diameter 9.44 in
L – Distance between Shaft Ends 10.47 in

SGK-435-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
Max Bores B1 Overrunning End Square Key 5.25 in
A – Outside Diameter 11 in
L – Distance between Shaft Ends 12.66 in

SGK-435-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
Max Bores B1 Overrunning End Square Key 5.25 in
A – Outside Diameter 11 in
L – Distance between Shaft Ends 12.66 in

SGK-440-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 11,500 lb·ft
Max. Overrunning Speed 1,500 rpm
Max Bores B1 Overrunning End Square Key 5.875 in
A – Outside Diameter 12.50 in
L – Distance between Shaft Ends 13.33 in

SGK-440-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 11,500 lb·ft
Max. Overrunning Speed 1,500 rpm
Max Bores B1 Overrunning End Square Key 5.875 in
A – Outside Diameter 12.50 in
L – Distance between Shaft Ends 13.33 in

SGK-445-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 18,000 lb-ft
Max. Overrunning Speed 1,350 rpm
Max Bores B1 Overrunning End Square Key 6.760 in
A – Outside Diameter 13.62 in
L – Distance between Shaft Ends 14.48 in

SGK-445-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 18,000 lb-ft
Max. Overrunning Speed 1,350 rpm
Max Bores B1 Overrunning End Square Key 6.760 in
A – Outside Diameter 13.62 in
L – Distance between Shaft Ends 14.48 in

SGK-610-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 200 lb·ft
Max. Overrunning Speed 5,000 rpm
A – Outside Diameter 4.56 in
L – Distance between Shaft Ends 6.23 in

SGK-610-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 200 lb·ft
Max. Overrunning Speed 5,000 rpm
A – Outside Diameter 4.56 in
L – Distance between Shaft Ends 6.23 in

SGK-615-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 600 lb-ft
Max. Overrunning Speed 4,000 rpm
A – Outside Diameter 6.00 in
L – Distance between Shaft Ends 7.68 in

SGK-615-90

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 600 lb-ft
Max. Overrunning Speed 4,000 rpm
A – Outside Diameter 6.00 in
L – Distance between Shaft Ends 7.68 in

SGK-625-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 3,600 rpm
A – Outside Diameter 8.38 in
L – Distance between Shaft Ends 8.48 in

SGK-625-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 3,600 rpm
A – Outside Diameter 8.38 in
L – Distance between Shaft Ends 8.48 in

SGK-630-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,500 rpm
A – Outside Diameter 9.44 in
L – Distance between Shaft Ends 10.47 in

SGK-630-90

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Technical Specs

Direction of Drive Rotation counter clockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,500 rpm
A – Outside Diameter 9.44 in
L – Distance between Shaft Ends 10.47 in

SGK-635-80

More Info

Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
A – Outside Diameter 11.00 in
L – Distance between Shaft Ends 12.66 in

SGK-635-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
A – Outside Diameter 11.00 in
L – Distance between Shaft Ends 12.66 in

SGK-640-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 11,500 lb·ft
Max. Overrunning Speed 1,500 rpm
A – Outside Diameter 12.50 in
L – Distance between Shaft Ends 13.33 in

SGK-640-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 11,500 lb·ft
Max. Overrunning Speed 1,500 rpm
A – Outside Diameter 12.50 in
L – Distance between Shaft Ends 13.33 in

SGK-645-80

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 18,000 lb-ft
Max. Overrunning Speed 1,350 rpm
A – Outside Diameter 13.62 in
L – Distance between Shaft Ends 14.48 in

SGK-645-90

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Technical Specs

Direction of Drive Rotation counterclockwise
Torque Rating 18,000 lb-ft
Max. Overrunning Speed 1,350 rpm
A – Outside Diameter 13.62 in
L – Distance between Shaft Ends 14.48 in

SGS Series

SGS-15-601

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 500 lb-ft
Max. Overrunning Speed 4,000 rpm
Max. Driver Speed 1,000 rpm
Sprag Lift- Off Speed 1,200 rpm
Allowable Chain Pull 1,500 lb

SGS-15-602

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Technical Specs

Direction of Drive Rotation counter clockwise
Torque Rating 500 lb-ft
Max. Overrunning Speed 4,000 rpm
Max. Driver Speed 1,000 rpm
Sprag Lift- Off Speed 1,200 rpm
Allowable Chain Pull 1,500 lb

SGS-25-601

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 3,600 rpm
Max. Driver Speed 1,200 rpm
Sprag Lift- Off Speed 1,200 rpm
Allowable Chain Pull 3,350 lb

SGS-25-602

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Technical Specs

Direction of Drive Rotation counter clockwise
Torque Rating 1,500 lb-ft
Max. Overrunning Speed 3,600 rpm
Max. Driver Speed 1,200 rpm
Sprag Lift- Off Speed 1,200 rpm
Allowable Chain Pull 3,350 lb

SGS-30-601

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,500 rpm
Max. Driver Speed 800 rpm
Sprag Lift- Off Speed 1,000 rpm
Allowable Chain Pull 6,800 lb

SGS-30-602

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Technical Specs

Direction of Drive Rotation counter clockwise
Torque Rating 4,000 lb-ft
Max. Overrunning Speed 2,500 rpm
Max. Driver Speed 800 rpm
Sprag Lift- Off Speed 1,000 rpm
Allowable Chain Pull 6,800 lb

SGS-35-601

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Technical Specs

Direction of Drive Rotation clockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
Max. Driver Speed 650 rpm
Sprag Lift- Off Speed 800 rpm
Allowable Chain Pull 6,800 lb

SGS-35-602

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Technical Specs

Direction of Drive Rotation counter clockwise
Torque Rating 6,800 lb-ft
Max. Overrunning Speed 1,800 rpm
Max. Driver Speed 650 rpm
Sprag Lift- Off Speed 800 rpm
Allowable Chain Pull 6,800 lb

KDK Series

KDK 20

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Technical Specs

Direction of Drive Rotation clockwise/counter clockwise
Torque 30 lb-ft
Energy Capacity 650,000 ft·lb
Max Bore Output 2.38 in
Max Bore Input 2.88 in
Fluid 64 oz

KDK 30

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Technical Specs

Direction of Drive Rotation clockwise/counter clockwise
Torque 30 lb-ft
Energy Capacity 1,250,000 ft·lb
Max Bore Output 2.38 in
Max Bore Input 2.88 in
Fluid 150 oz

KDK 40

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Technical Specs

Direction of Drive Rotation clockwise/counter clockwise
Torque 70 lb-ft
Energy Capacity 2,000,000 ft·lb
Max Bore Output 3.63 in
Max Bore Input 3.25 in
Fluid 256 oz

KDK 50

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Technical Specs

Direction of Drive Rotation clockwise/counter clockwise
Torque 70 lb-ft
Energy Capacity 3,000 ft·lb
Max Bore Output 3.63 in
Max Bore Input 3.25 in
Fluid 352 oz