Perma-Tork® Dimensions Clutches -Hollow Shaft 1 2 Imperial Models (Dimensions in inches) Permanent Magnet Clutches & Brakes Model Design Drwg. A B** C D E F G* H I J 1.378 1.024 .83 .55 .392 x .037 .196/.197 - 3) M3 x 4.5 dp on .610 HC01-1 Hysteresis 1 - Flat .169 HC2-14 Hysteresis 1 .251 .250 3/32 Roll pin 1.61 1.88 1.36 .25 .8750 x .08 .375 .141 3) 6-32 x 5/16 dp on 1.25 B.C. HC4-58 Hysteresis 1 .625 .626 3/16 Sq. key 2.30 3.23 2.02 .28 1.850 x .10 .98 - 3) 10-32 x 3/8 dp on 2.375 B.C. HC4-12 Hysteresis 1 .500 .501 1/8 Sq. key 2.30 3.23 2.02 .28 1.850 x .10 .98 - 3) 10-32 x 3/8 dp on 2.375 B.C. HC5-58 Hysteresis 1 .625 .626 3/16 Sq. key 2.89 4.65 2.47 .42 2.441 x .12 1.38 - 3) 10-32 x .50 dp on 3.000 B.C. HC5-12 Hysteresis 1 .500 .501 1/8 Sq. key 2.89 4.65 2.47 .42 2.441 x .12 1.38 - 3) 10-32 x .50 dp on 3.000 B.C. HC6-58 Hysteresis 2 .625 .626 3/16 Sq. key 3.18 6.00 2.03 .25 2.441 1.18 - 3) 1/4-20 x 5/16 dp on 2.875 B.C. HC6-34 Hysteresis 2 .750 .751 3/16 Sq. key 3.18 6.00 2.03 .25 2.441 1.18 - 3) 1/4-20 x 5/16 dp on 2.875 B.C. Metric Models (Dimensions in mm) Model Design Drwg. A B** C D E F G* H I J HC2-M6 Hysteresis 1 6 H8 2.5 Roll Pin 40.9 47.0 34.5 6.4 22.225 X 2.0 9.53 3.58 (3) M3 X 0.5 Thread X 7.9 deep on 31.8 bolt circle HC4-M14 Hysteresis 1 14 H8 5 square key 58.4 82.0 51.3 7.1 47.00 X 2.5 24.90 - (3) M5 X 0.8 Thread X 9.5 deep on 60.33 bolt circle HC5-M17 Hysteresis 1 17 H8 5 square key 73.4 118.1 62.7 10.7 62.00 X 3.0 34.90 - (3) M5 X 0.8 Thread X 12.7 deep on 76.20 bolt circle HC6-M19 Hysteresis 2 19 H8 6 square key 80.8 152.4 51.6 6.4 62.00 30.00 - (3) M6 X 1.0 Thread X 7.9 deep on 73.03 bolt circle *Dimension G is the same on both ends of the housing 154 Permanent Magnet Clutches & Brakes **The hollow shaft units with keyways have set screws in the hub extension