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20B18 Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 20B18 | CONDITION: NEW | SKU: 259947
20B18 Metric Roller Chain Sprocket

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Actual product may vary
Typically In Stock: confirm availability
Returnable: see conditions
Shipping from?: see locations Typically ships in 1 day
Weight: 15.00 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 31.750 mm
Number Of Teeth 18
Outside Dia 203.478 mm
Material Steel
Pitch Diameter 182.841 mm


Metric B Style sprockets are flat sprockets with a hub extension welded 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 hardened teeth are quick alterations that can be made.
Material Steel Width across Teeth/ Rows 18.593 mm
Chain Number 20B-1 Hub Configuration B
Chain Pitch 31.750 mm Hub Outside Diameter 114.300 mm
Number of Chain Rows 1 Length thru Bore 43.993 mm
Number of Teeth 18 Construction Detail Welded
Outside Diameter 203.478 mm Bore Type Stock Bore
Pitch Diameter 182.841 mm Min Bore Size 32.000 mm
Single Strand Tooth Thickness 18.593 mm Max Bore Size 80.000 mm
Storage Dimension Length 8.011 in. Weight 11.50 lbs.
Storage Dimension Width 8.011 in. Individually Packaged No
Storage Dimension Height 1.732 in.