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 
 

1,355 Items found

Refine by

Current selections:
Number of Teeth: 21
categories
brand
Need help?
905-238-3392 Distribution Center  | 

INDICATES Contract Pricing

Page 1 of 271

Next

Compare
S2021

COMPARE

S2021

Description
S2021 SPUR GEAR ; 14 1/2 DEG STEEL

MARTIN SPROCKET & GR

Part # S2021

BDI # 611756

Features

Gear Style: Spur Gear
Pitch Diameter - Inch: 1.05
Inch - Metric: Inch
Material: Steel
Face Width - Millimeter: 9.525

Face Width - Inch: 0.375
Pitch: 20 DP
Other Features: Plain Style | Type B | Minimum Bore 3/8
Global Part Number GPN: 671419
Pressure Angle: 14.5

Price Inventory : In stock
QTY
100A21

COMPARE

100A21

Description
100A21 ROLLER CHAIN SPROCKET ; 1-1/4" PITCH 21T A PLATE

MARTIN SPROCKET & GR

Part # 100A21

BDI # 614077

Features

Chain Pitch - Inch: 1.25
Chain Size: 100
Chain Pitch - Millimeter: 31.75
Pitch Diameter - Inch: 8.388
Inch - Metric: Inch

Material: Steel
Outside Diameter - Inch: 9.044
Global Part Number GPN: 31365
Pitch Diameter - Millimeter: 213.055
Mounting Method: Rough Bore

Price Inventory : In stock
QTY
35BS21 5/8

COMPARE

35BS21 5/8

Description
35BS21 5/8 ROLLER CHAIN SPROCKET ; 3/8" P 21T 5/8" BORE

MARTIN SPROCKET & GR

Part # 35BS21 5/8

BDI # 618714

Features

Chain Pitch - Inch: 0.375
Chain Size: 35
Pitch Diameter - Inch: 2.516
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 2.713
Other Features: With 2 Set Screw
Global Part Number GPN: 32372
Pitch Diameter - Millimeter: 63.91
Mounting Method: Finished Bore

Price Inventory : In stock
QTY
D80R21H

COMPARE

D80R21H

Description
D80R21H ROLLER CHAIN SPROCKET ; MST DOUBLE STRAND

MARTIN SPROCKET & GR

Part # D80R21H

BDI # 608154

Features

Chain Pitch - Inch: 1
Chain Size: 80-2
Pitch Diameter - Inch: 6.71
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 7.235
Other Features: Bushing Sold Separately | Bushing Not Included | Split Taper Bushing
Global Part Number GPN: 571292
Pitch Diameter - Millimeter: 170.434
Mounting Method: Bushed

Price Inventory : In stock
QTY
80Q21H

COMPARE

80Q21H

Description
80Q21H ROLLER CHAIN SPROCKET ; 1" P 21T HT BORE FOR Q BUSHING

MARTIN SPROCKET & GR

Part # 80Q21H

BDI # 625294

Features

Chain Pitch - Inch: 1
Chain Size: 80
Pitch Diameter - Inch: 6.71
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 7.235
Other Features: Bushing Sold Separately | Bushing Not Included | Split Taper Bushing
Global Part Number GPN: 571795
Pitch Diameter - Millimeter: 170.434
Mounting Method: Bushed

Price Inventory : In stock
QTY

© copyright 2025 BDI All Rights Reserved