Skip to navigation menu
Boston Gear40B21-1 1/8

40B21-1 1/8

Finished Bore Sprocket
Item #101853242
  • 40 Chain, 21 Tooth, 1.125 in Bore, With Keyway and Setscrew
Boston Gear40B21-1 1/8
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

Alternate Products

No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Martin
No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100807068
each
No. 40 - 1/2" Pitch - Finished Bore Sprockets
US Tsubaki Inc.
No. 40 - 1/2" Pitch - Finished Bore Sprockets
Item #101621260
each
  • 40 Chain, 21 Tooth, 1.125 in Bore, With Keyway and Setscrew

features

  • Quality design
  • Superior fatigue resistance
  • Long operational life
  • Complete with keyway and setscrew

compliances

  • 0
Keyway w/Keyway & Setscrew
Hub Dia. 2 3/4 in
Chain No. 40
Inch/Metric Inch
Material Steel
No. of Teeth 21
Chain Pitch 0.5 in
Hardened Teeth Without Hardened Teeth
Hub Length Thru 0.716 in
Width Across Teeth 0.284 in
No. of Strands Across 1
Pitch Diameter 3.355 in
Outside Dia. 3.617 in
Length Through Bore 1 in
Finished Bore 1 1/8 in
Sprocket Style B
Weight 1.312 LB
EAN or UPC 781711360880
We're here for you
with Service Centers across the country -
We have your back
Get Support
Close Compare List Open Compare List Toggle

Product Comparison

CLOSE
Close

Before proceeding please sign in or become a registered user on Applied.com

Sign In or Register

Switch to {0} Site?

Close button

We've detected you're in . View our site for accurate pricing and local language options.

Yes, Go to {0} Site
Close

Add to Saved List

Create

Add to Existing Auto-Replenish Order

Existing Autoship Orders