| Model | Max Torque (kgf-m) | Nominal Overrunning Drag (kgf-m) | Max. Overrunning (rpm) | Max. Indexing (cycle/min) |
| B | Shaft Dia
| Keyway | Bearing Number | Weight (kgf) | | B203K | 4 | 0.01 | 2,400 | 500 | 150 | 25.0 | | 16.510 | 4×2.5 | 6,203 | 0.16 | | B204K | 6 | 0.01 | 2,400 | 500 | 150 | 25.0 | | 18.796 | 5×3 | 6,204 | 0.26 | | B205K | 10 | 0.02 | 1,800 | 400 | 150 | 25.0 | | 23.622 | 5×3 | 6,205 | 0.29 | | B206K | 24 | 0.02 | 1,800 | 350 | 150 | 28.0 | | 32.766 | 7×4 | 6,206 | 0.42 | | B207K | 38 | 0.02 | 1,800 | 300 | 150 | 28.0 | | 42.088 | 7×4 | 6,207 | 0.50 | | B208K | 56 | 0.02 | 1,800 | 200 | 150 | 32.0 | | 46.761 | 10×4.5 | 6,208 | 0.73 | | B209K | 56 | 0.02 | 1,800 | 200 | 150 | 32.0 | | 46.761 | 10×4.5 | 6,209 | 0.89 | | B210K | 80 | 0.03 | 1,200 | 200 | 150 | 32.0 | | 56.109 | 10×4.5 | 6,210 | 0.87 | | B211K | 80 | 0.03 | 1,200 | 200 | 150 | 32.0 | | 56.109 | 10×4.5 | 6,211 | 1.24 | | B212K | 125 | 0.03 | 1,200 | 180 | 150 | 42.0 | | 70.029 | 10×4.5 | 6,212 | 1.56 | | B213K | 125 | 0.03 | 1,200 | 180 | 150 | 42.0 | | 70.029 | 10×4.5 | 6,213 | 2.07 | | B214K | 142 | 0.04 | 1,000 | 180 | 150 | 42.0 | | 79.356 | 12×4.5 | 6,214 | 2.07 |
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