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 
 

11 Items found

Refine by

Current selections:
Category: Mechanical Power Transmission
Text Search: sprocket
Outside Diameter - Inch: 4.522
categories
brand
chain size
mounting method
Need help?
833-505-2801 BDIEXPRESS Direct  | 

INDICATES Contract Pricing

Page 1 of 3

Next

Compare
50BS21 1

COMPARE

50BS21 1

Description
50BS21 1 ROLLER CHAIN SPROCKET ; 5/8" P 21T 1" BORE

MARTIN SPROCKET & GR

Part # 50BS21 1

BDI # 621415

Features

Chain Pitch - Inch: 0.625
Chain Size: 50
Pitch Diameter - Inch: 4.194
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 4.522
Other Features: With 2 Set Screw
Global Part Number GPN: 33195
Pitch Diameter - Millimeter: 106.52
Mounting Method: Finished Bore

Price Inventory : In stock
QTY
50BTB21

COMPARE

50BTB21

Description
50BTB21 ROLLER CHAIN SPROCKET ; 5/8" P 21T BORE FOR 1610 BUSHING

MARTIN SPROCKET & GR

Part # 50BTB21

BDI # 621906

Features

Chain Pitch - Inch: 0.625
Chain Size: 50
Pitch Diameter - Inch: 4.194
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 4.522
Other Features: Bushing Sold Separately | Bushing Not Included | Taper Lock Bushing
Global Part Number GPN: 32132
Pitch Diameter - Millimeter: 106.52
Mounting Method: Bushed

Price Inventory : In stock
QTY
H50B21F X 1

COMPARE

H50B21F X 1

Description
H50B21F X 1 ROLLER CHAIN SPROCKET ; 5/8" P 21T HT 1" BORE

TSUBAKI

Part # H50B21F-1

BDI # 916640

Features

Chain Pitch - Inch: 0.625
Chain Size: 50
Pitch Diameter - Inch: 4.194
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 4.522
Other Features: With 2 Set Screw
Global Part Number GPN: 38908
Pitch Diameter - Millimeter: 106.52
Mounting Method: Finished Bore

Price Inventory : In stock
QTY
50BTB21H

COMPARE

50BTB21H

Description
50BTB21H ROLLER CHAIN SPROCKET ; 5/8" P 21T HT BORE FOR 1610 BUSHING

MARTIN SPROCKET & GR

Part # 50BTB21H

BDI # 621907

Features

Chain Pitch - Inch: 0.625
Chain Size: 50
Pitch Diameter - Inch: 4.194
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 4.522
Other Features: Bushing Sold Separately | Bushing Not Included | Taper Lock Bushing
Global Part Number GPN: 32133
Pitch Diameter - Millimeter: 106.52
Mounting Method: Bushed

Price Inventory : Available to order
QTY
D50B21H

COMPARE

D50B21H

Description
D50B21H ROLLER CHAIN SPROCKET ; 5/8" P 21T HT DOUBLE 1" MIN PLAIN BORE

MARTIN SPROCKET & GR

Part # D50B21H

BDI # 607843

Features

Chain Pitch - Inch: 0.625
Chain Size: 50-2
Pitch Diameter - Inch: 4.194
Inch - Metric: Inch
Material: Steel

Outside Diameter - Inch: 4.522
Other Features: Duplex Type
Global Part Number GPN: 30632
Pitch Diameter - Millimeter: 106.52
Mounting Method: Rough Bore

Price Inventory : Available to order
QTY

© copyright 2025 BDI All Rights Reserved