50B30H- 3/4"
50B30H-7/8" Type B Finish Bore Sprocket for #50 Roller Chain 30 Tooth
You will find that MOTOROLA units have a compact size that fits in a pocket.
50B30H-3/4" Type B Finish Bore Sprocket for #50 Roller Chain 30 Tooth
What I admire about the PR5G Polyester Resin is how it handles repetitive stress loads.