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 
 

20B47 https://www.bdiexpress.com/medias/INDXXXSPKTXX-RC-B-1-STL-300x300.jpg?context=bWFzdGVyfHJvb3R8MjA1MjJ8aW1hZ2UvanBlZ3xhR00wTDJobFlpODVPVGd3TXpjeE5UWTJOakl5TDBsT1JGaFlXRk5RUzFSWVdGOVNRMTlDWHpGZlUxUk1Yek13TUhnek1EQXVhbkJufDBlMmZjZjlhZTk3ZTMzNzUwZGNmOGVmNThlNzc4YjBmMDNkOTJmMDFiNmU4ZDgyZTI0MGZjNzU0MTMwZjQyMmM
617151 Roller Chain Sprockets 

MARTIN SPROCKET & GR MARTIN SPROCKET & GR

20B47

Description

20B47 ROLLER CHAIN SPROCKET ; METRIC SNG & DBL

20B-1 Chain Size; 47 Teeth; 1 Row of Teeth; No Hardened Teeth; 493.344MM Outside Dia; 475.35MM Pitch Dia; B-Hub One Side; Rough Bore; 31.75MM Chain Pitch; ISO Roller Chain Chain Type; No Keyway; Steel Material; 84MM Max Bore

Part #

20B47

BDI #
617151

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

Details

352.5999 USD 2099-12-31 http://schema.org/NewCondition https://schema.org/LimitedAvailability Your Price $ 352.60 / each
$ 628.21 / 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
Weight / Kilogram
28.15
EAN
0697950404424
Product Group - BDI
M02312
Chain Size
20B-1
Number of Teeth
47
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
ISO Roller Chain
Keyway Yes/No
No
Material
Steel
Max Bore
84
Minimum Plain Bore
Yes
Other Features
Simplex Type | Metric
Inch - Metric
Metric
Category - BDI
Sprocket
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Roller Chain
Manufacturer URL
http://www.martinsprocket.com
Weight / LBS
61.994
Long Description
20B-1 Chain Size; 47 Teeth; 1 Row of Teeth; No Hardened Teeth; 493.344MM Outside Dia; 475.35MM Pitch Dia; B-Hub One Side; Rough Bore; 31.75MM Chain Pitch; ISO Roller Chain Chain Type; No Keyway; Steel Material; 84MM Max Bore
Outside Diameter
19.423 Inch | 493.344 Millimeter
Bore
0 Inch | 0 Millimeter
Pitch Diameter
18.715 Inch | 475.35 Millimeter
Chain Pitch
1.25 Inch | 31.75 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