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 
 

25B17-5/16 https://www.bdiexpress.com/medias/INDXXXSPKTXX-RC-B-HOS-1-FB-KW-STL-300x300.jpg?context=bWFzdGVyfHJvb3R8MTI3ODJ8aW1hZ2UvanBlZ3xhR1E0TDJnNU5pODVPRGcyTVRJM05qZzFOall5TDBsT1JGaFlXRk5RUzFSWVdGOVNRMTlDWDBoUFUxOHhYMFpDWDB0WFgxTlVURjh6TURCNE16QXdMbXB3Wnd8YWU4MTE5ZTdiNDA2ZjBkNTBkMDY2NGYwNGY0OTRkM2ViNGU0MGE1ODUzOGYwZTNmNjQ4YmE1Y2FiMGZlZjQ2Yg
175128 Roller Chain Sprockets 

BOSTON GEAR BOSTON GEAR

25B17-5/16

Description

25B17 5/16

Roller Chain Sprocket; 5/16" Bore; 25 Chain; 17 Teeth; 1 Row of Teeth; No Hardened Teeth; 1.487" Outside Diameter; 1.361" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Part #

25B17-5/16

BDI #
175128

Details

2099-12-31 http://schema.org/NewCondition https://schema.org/LimitedAvailability Your Price Request A Price BDIExpress
QTY

Inventory

Total: Available to order

Category
Roller Chain Sprockets
Brand
BOSTON GEAR
Manufacturer Name
ALTRA INDUSTRIAL MOTION
Minimum Buy Quantity
N/A
Weight / Kilogram
0.057
EAN
0781711582374
Product Group - BDI
M02312
Chain Size
25
Number of Teeth
17
Number of Rows of Teeth
1
Hub Type
B-Hub One Side
Mounting Method
Finished Bore
Bushing Size if bushed
No Bushing
Hardened Teeth
No
Chain Type
ANSI Roller Chain
Keyway Yes/No
Yes
Material
Steel
Minimum Plain Bore
No
Other Features
With 2 Set Screw
Inch - Metric
Inch
Category - BDI
Sprockets
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Roller Chain
Manufacturer URL
https://www.bostongear.com
Weight / LBS
0.057
Long Description
Roller Chain Sprocket; 5/16" Bore; 25 Chain; 17 Teeth; 1 Row of Teeth; No Hardened Teeth; 1.487" Outside Diameter; 1.361" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
Chain Pitch
0.25 Inch | 6.35 Millimeter
Bore
0.313 Inch | 7.95 Millimeter
Outside Diameter
1.487 Inch | 37.77 Millimeter
Pitch Diameter
1.361 Inch | 34.569 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