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 
 

50B31 https://www.bdiexpress.com/medias/INDXXXSPKTXX-RC-B-1-STL-300x300.jpg?context=bWFzdGVyfHJvb3R8MjA1MjJ8aW1hZ2UvanBlZ3xhR00wTDJobFlpODVPVGd3TXpjeE5UWTJOakl5TDBsT1JGaFlXRk5RUzFSWVdGOVNRMTlDWHpGZlUxUk1Yek13TUhnek1EQXVhbkJufDBlMmZjZjlhZTk3ZTMzNzUwZGNmOGVmNThlNzc4YjBmMDNkOTJmMDFiNmU4ZDgyZTI0MGZjNzU0MTMwZjQyMmM
621979 Roller Chain Sprockets 

MARTIN SPROCKET & GR MARTIN SPROCKET & GR

50B31

Description

50B31 ROLLER CHAIN SPROCKET ; 50 CHAIN 31 TEETH 1 ROW NO HT

50 Chain; 31 Teeth; 1 Row of Teeth; No Hardened Teeth; 6.521" Outside Dia; 6.178" Pitch Dia; B-Hub One Side; Rough Bore Mount; 5/8" Chain Pitch; ANSI Roller Chain Chain Type; No Keyway; Steel Material; 2-1/4" Max Bore

Part #

50B31

BDI #
621979

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Details

41.488400000000006 USD 2099-12-31 http://schema.org/NewCondition http://schema.org/InStock Your Price $ 41.49 / each
$ 83.20 / each BDIExpress
QTY

Inventory

Total: 1

Category
Roller Chain Sprockets
Brand
MARTIN SPROCKET & GR
Manufacturer Name
MARTIN SPROCKET & GEAR
Minimum Buy Quantity
N/A
Weight / Kilogram
2.152
EAN
0697950012636
Product Group - BDI
M02312
Chain Size
50
Number of Teeth
31
Number of Rows of Teeth
1
Hub Type
B-Hub One Side
Mounting Method
Rough Bore
Bushing Size if bushed
No Bushing
Hardened Teeth
No
Chain Type
ANSI Roller Chain
Keyway Yes/No
No
Material
Steel
Max Bore
2.25
Minimum Plain Bore
Yes
Inch - Metric
Inch
Category - BDI
Sprocket
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Roller Chain
Manufacturer URL
http://www.martinsprocket.com
Weight / LBS
4.74
Long Description
50 Chain; 31 Teeth; 1 Row of Teeth; No Hardened Teeth; 6.521" Outside Dia; 6.178" Pitch Dia; B-Hub One Side; Rough Bore Mount; 5/8" Chain Pitch; ANSI Roller Chain Chain Type; No Keyway; Steel Material; 2-1/4" Max Bore
Chain Pitch
0.625 Inch | 15.88 Millimeter
Pitch Diameter
6.178 Inch | 156.92 Millimeter
Bore
0 Inch | 0 Millimeter
Outside Diameter
6.521 Inch | 165.633 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