Sorry, online purchases are not available in your country.
Confirmation
Do you really want to delete this item(s) from your shopping cart?
Close

Managing quotes online is only available to users with corporate accounts. You can still request a quote, but it will be emailed to you.

Request Quote

Upgrade to a corporate account for advanced options and personal service.

ATTENTION
Attention
  • BDI’s Warehouse Store is a limited catalog featuring only stocked items, priced exclusively for self-service online purchases made within the BDI Warehouse Store.

  • Pricing shown is available ONLY in the Warehouse Store and NOT from BDI Branch offices.

  • All sales are taxable (no tax free purchases) and payable by credit card. They cannot be charged to your BDI account.

  • All orders include a $5 ground shipping charge.

  • To purchase with your BDI account, please click Cancel.
  
ATTENTION
Attention
Soon you will not be able to run BDIExpress with Internet Explorer.

Microsoft is discontinuing support for the Internet Explorer web browser and obsoleting it. Microsoft is recommending switching to Microsoft Edge.



Or click below to download another browser 
 

24BTB21H https://www.bdiexpress.com/medias/INDXXXSPKTXX-RC-B-1-TL-KW-STL-300x300.jpg?context=bWFzdGVyfHJvb3R8MTcyMjR8aW1hZ2UvanBlZ3xhREppTDJnNE1TOHhNRFV3TnpFNE56QTVNelV6TkM5SlRrUllXRmhUVUV0VVdGaGZVa05mUWw4eFgxUk1YMHRYWDFOVVRGOHpNREI0TXpBd0xtcHdad3w5Nzc5MjAzNDg2MzY4YWJmNjIxNWU0ZDVmZDg5YjlhNTRmMzNjMmNlMDc4YTYyNWI1OGQ3ZmU5N2FjZTAxZDBl
617706 Roller Chain Sprockets 

MARTIN SPROCKET & GR MARTIN SPROCKET & GR

24BTB21H

Description

24BTB21H ROLLER CHAIN SPROCKET ; TB METRIC SNG AND DBL

Roller Chain Sprocket; 24B-1 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 275.666MM Outside Diameter; 255.63MM Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 38.1MM Chain Pitch; ISO Roller Chain; Keyway; Steel Material

Part #

24BTB21H

BDI #
617706

Details

810.33 CAD 2099-12-31 http://schema.org/NewCondition https://schema.org/LimitedAvailability Your Price $ 810.33 / each BDIExpress
QTY

Inventory

Total: Available to order

Category
Roller Chain Sprockets
Brand
MARTIN SPROCKET & GR
Manufacturer Name
MARTIN SPROCKET & GEAR
Minimum Buy Quantity
N/A
UNSPSC
31171901
Weight / Kilogram
8.285
EAN
0697950411811
Product Group - BDI
M02312
Chain Size
24B-1
Number of Teeth
21
Number of Rows of Teeth
1
Hub Type
B-Hub One Side
Mounting Method
Bushed
Bushing Size if bushed
3020
Hardened Teeth
Yes
Chain Type
ISO Roller Chain
Keyway Yes/No
Yes
Material
Steel
Minimum Plain Bore
No
Other Features
Bushing Sold Separately | Bushing Not Included | Simplex Type | Taper Lock Bushing
Inch - Metric
Metric
Category - BDI
Sprockets
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Roller Chain
Manufacturer URL
https://www.martinsprocket.com
Weight / LBS
17.505
Long Description
Roller Chain Sprocket; 24B-1 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 275.666MM Outside Diameter; 255.63MM Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 38.1MM Chain Pitch; ISO Roller Chain; Keyway; Steel Material
Pitch Diameter
10.064 Inch | 255.63 Millimeter
Bushing Bore Range
15/16 To 3 Inch | 24 To 75 Millimeter
Outside Diameter
10.853 Inch | 275.666 Millimeter
Chain Pitch
1.5 Inch | 38.1 Millimeter
Bore
0 Inch | 0 Millimeter

These items are similar to the one you've selected.
You can uncheck any attribute to search for other items which vary in relation to that attribute.

Find alternatives

Refresh

© copyright 2025 BDI All Rights Reserved