Skip to content Skip to navigation menu
Metric Roller Chain Sprocket

20A25

Metric Roller Chain Sprocket
Item #100966899
  • 20B-1 Chain Number
  • 1 Strand
  • 25 Teeth
  • Without Hardened Teeth
  • A Sprocket Style
  • 32.02 mm Minimum Bore
  • 223.09 mm Maximum Bore
+ Show More + Show Less
Metric Roller Chain Sprocket
Price Unavailable
Price Unavailable
Pricing is unavailable at this time. Please contact Customer Service for assistance.
Online Ordering Restricted
Please contact Customer Service for assistance.
Contact Customer Service
    Shipment Options
  • 20B-1 Chain Number
  • 1 Strand
  • 25 Teeth
  • Without Hardened Teeth
  • A Sprocket Style

description

  • Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

features

  • Manufactured of high carbon steel
  • 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
No. of Strands Across 1
Hardened Teeth Without Hardened Teeth
Width Across Teeth 18.59 mm
Bore Range [Min] 32.02 mm
Pitch Diameter 253.3 mm
Pitch Root Diameter 234.3 mm
Length Through Bore 18.59 mm
Pin Diameter 19.05 mm
Bore Type Reborable
Family Name No. 20 - 31.750 mm Pitch - Single - A
Pitch Diameter [Min] 253.3 mm
Hub Projection N/A
Root Diameter 234.3 mm
Chain Pitch 31.75 mm
Material Steel
No. of Teeth 25
Sprocket Style A
Outside Dia. 273.96 mm
Inch/Metric Metric
Bore Range [Max] 223.09 mm
Single Strand Tooth Thickness 18.59 mm
Series A
Hub Dia. N/A
Chain No. 20B, 20B-1
Outside Dia. [Min] 273.96 mm
Caliper Diameter 233.77 mm
Hub Length Thru N/A
Martin No. 20A25
Bore Style Minimum Bore
Weight 11.9 LB
EAN or UPC 697950403991
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison