Specification Dimensions-mm Model Max Torque (kgf-m) Nominal Overrunning Drag (kgf-m) Max. Overrunning (rpm) Max. Indexing (cycle/min) A  +0 -0.06 B Shaft Dia C  +0      -0.025 Keyway Bearing Number Weight (kgf) B203K 4 0.01 2,400 500 150 25.0 40  -0.014 -0.039 16.510 4×2.5 6,203 0.16 B204K 6 0.01 2,400 500 150 25.0 47  -0.014 -0.039 18.796 5×3 6,204 0.26 B205K 10 0.02 1,800 400 150 25.0 52  -0.017 -0.042 23.622 5×3 6,205 0.29 B206K 24 0.02 1,800 350 150 28.0 62  -0.017 -0.042 32.766 7×4 6,206 0.42 B207K 38 0.02 1,800 300 150 28.0 72  -0.017 -0.042 42.088 7×4 6,207 0.50 B208K 56 0.02 1,800 200 150 32.0 80  -0.017 -0.042 46.761 10×4.5 6,208 0.73 B209K 56 0.02 1,800 200 150 32.0 85  -0.020 -0.045 46.761 10×4.5 6,209 0.89 B210K 80 0.03 1,200 200 150 32.0 90  -0.020 -0.045 56.109 10×4.5 6,210 0.87 B211K 80 0.03 1,200 200 150 32.0 100  -0.020 -0.050 56.109 10×4.5 6,211 1.24 B212K 125 0.03 1,200 180 150 42.0 110  -0.020 -0.050 70.029 10×4.5 6,212 1.56 B213K 125 0.03 1,200 180 150 42.0 120  -0.020 -0.050 70.029 10×4.5 6,213 2.07 B214K 142 0.04 1,000 180 150 42.0 125  -0.024 -0.060 79.356 12×4.5 6,214 2.07   Character 1. 200K Series are shaft mounted directly. 2. Clutch have the same O.D as the ball bearing. for installation of clutch, shaft must be supported by     bearings.