Martin 12B20 Type B Single Strand Solid Stock Bore Roller Chain Sprocket, 16 to 60 mm Dia Bore, 133.524 mm OD, #12B-1 Chain, 20 Teeth, 19.05 mm Pitch, Steel
12B20-MAR
MFG #: 12B20
Requires Quote
Non-Stock Item
- Bore Diameter: 16 to 60 mm
- Chain Size: #12B-1
- Country of Origin: US
- Hub Diameter: 89.992 mm
- Length Through Bore: 35 mm
- Manufacturer Name: Martin Sprocket & Gear
- Material: Steel
- Number of Teeth: 20
- Outside Diameter: 133.524 mm
- Pitch: 19.05 mm
- Pitch Diameter: 121.776 mm
- Type: Type B Single Strand Solid Stock Bore
Metric B style sprockets are flat sprockets with a hub extension on one side. These plain bore sprockets can easily be bored to a metric or standard size to fit your application. Keyways, set screws and harden teeth are quick alterations that can be made.
- Item Features
- Standards
- Without hardened teeth
- Precise machining and processes ensure consistent finish and high quality
- Bores are concentric to pitch line, minimizing run out
- Chain rows are parallel and precisely spaced to increase longevity of sprocket and chain
- https://www.youtube.com/watch?v=fSomOMNB_-Q
ANSI B29.1 - 1975|BS 228/13|CEMA Standard|ECCN: EAR99|MPTA Approved|NIBA Certified|PTDA Approved