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20B45 Metric Roller Chain Sprocket

BRAND: Martin Sprocket | MODEL: 20B45 | CONDITION: NEW | SKU: 259974
20B45 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: 53.99 lbs UOM: EA

Additional Description

Technical Specifications

Pitch 31.750 mm
Number Of Teeth 45
Outside Dia 475.792 mm
Material Steel
Pitch Diameter 455.155 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 127.000 mm
Number of Chain Rows 1 Length thru Bore 64.008 mm
Number of Teeth 45 Construction Detail Welded
Outside Diameter 475.792 mm Bore Type Stock Bore
Pitch Diameter 455.155 mm Min Bore Size 32.000 mm
Single Strand Tooth Thickness 18.593 mm Max Bore Size 86.000 mm
Storage Dimension Length 18.732 in. Weight 59.24 lbs.
Storage Dimension Width 18.732 in. Individually Packaged No
Storage Dimension Height 2.520 in.