Sofstep® Dimensions Clutch Model A B C D E F +.000 -.001 G H J K L inches Tap BC Holes PSC-2 3.8 1.86 .750* .250 1.87 .98 12 .96 .1 Flat 6-32* 1.350 3 PSC-15 4.9 2.82 - .500 2.88 1.0 12 1.1 - Flat 8-32 2.000 3 PSC-70 6.5 3.67 1.625 .750 4.54 1.5 12 1.4 .1 .1875 10-32 4.228 4 PSC-120 7.0 4.00 - .750 5.25 1.5 12 1.5 - .1875 1/4-20 4.812 4 Dimensions C, D, J, K and L are the same on both ends of housing *Pilot and mounting holes on output end only Brake G A B C +.000 -.001 E F PSB-2* 2.5 1.15 .7500 .250 1.88 .88 12 PSB-15 2.6 1.57 1.125 .500 2.88 1.0 PSB-70 2.6 1.76 1.625 .750 4.56 .45 PSB-120 3.15 2.24 1.625 .750 PSB-240 3.8 2.61 H Tap L BC 6-32* 1.350 3 Flat 8-32 2.000 3 - .125/.129 10-32 4.228 4 .18 1/4-20 4.812 4 .28 .1875 Keyway 5/16-18 5.875 4 - J K Flat 12 Solid Shaft .10 .05 12 .500 .12 5.25 .70** 12 .500 .06 .156***/.160 2.250 1.250 6.48 .85** 12 .875 .04 Dimensions C, D and H are the same on both ends of housing inches +.001 Loc. -.000 M Holes Hole - *Mounting bolt pattern both sides typical on PSB-2 **Set screw collar, not shown ***PSB-120 also has 1/8˝ Keyway Magnetic Particle Clutches & Brakes 143 Magnetic Particle Clutches & Brakes D Model