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 
 

IDLER WHEEL 21T 40MM BORE https://www.bdiexpress.com/medias/INDREXXXXXXX-19434645-300x300.jpg?context=bWFzdGVyfHJvb3R8MTM2MDJ8aW1hZ2UvanBlZ3xhR0l4TDJobE9TODVPVE13T1RJek1ERTJNakl5TDBsT1JGSkZXRmhZV0ZoWVdGOHhPVFF6TkRZME5WOHpNREI0TXpBd0xtcHdad3w0MjNjZjY0ODI4ZjhmNDE0MzJiN2QyMzYwMWYxOWMwZTcwNzg2MjE4YzIyN2JlZTUyYTI4NjI0NWFmMWE0MzFh
19434645 Table Top and Modular Sprockets 

REXNORD REXNORD

IDLER WHEEL 21T 40MM BORE

Description

NT820-21T 40MM I LF

Conveying Chain Sprocket; 40MM Bore; 38.1MM Pitch; 815 | 820 | 831 | 4705 | 4706 | 4707 | 5705 | 5706 | SSB Modular - Flat Top Size; 21 Teeth; C-Hub Both Sides Type; Idler Bore; Round; 130.048MM Outside Diameter; 129.286MM Pitch Diameter; Straight Running Modular - Flat Top Type; Thermoplastic Material; Grooved; No Split; No Keyway

Part #

IDLER WHEEL 21T 40MM BORE

BDI #
19434645

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
Table Top and Modular Sprockets
Brand
REXNORD
Manufacturer Name
REXNORD
Minimum Buy Quantity
N/A
Weight / Kilogram
0
EAN
0698210848620
Product Group - BDI
M00134
Modular - Flat Top Size
815 | 820 | 831 | 4705 | 4706 | 4707 | 5705 | 5706 | SSB
Number of Teeth
21
Hub Type
C-Hub Both Sides
Mounting Method
Idler Bore
Bore Profile
Round
Modular - Flat Top Type
Straight Running
Material
Thermoplastic
Grooved Yes or No
Yes
Split Yes or No
No
Keyway Yes/No
No
Inch - Metric
Metric
Other Features
820 Series Molded Non-Split
Category - BDI
Flat Top Sprockets
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Conveying Chain
Manufacturer URL
https://www.regalrexnord.com
Manufacturer Item Number
10012457
Weight / LBS
0.4
Long Description
Conveying Chain Sprocket; 40MM Bore; 38.1MM Pitch; 815 | 820 | 831 | 4705 | 4706 | 4707 | 5705 | 5706 | SSB Modular - Flat Top Size; 21 Teeth; C-Hub Both Sides Type; Idler Bore; Round; 130.048MM Outside Diameter; 129.286MM Pitch Diameter; Straight Running Modular - Flat Top Type; Thermoplastic Material; Grooved; No Split; No Keyway
Bore
1.575 Inch | 40 Millimeter
Pitch
1.5 Inch | 38.1 Millimeter
Outside Diameter
5.12 Inch | 130.048 Millimeter
Pitch Diameter
5.09 Inch | 129.286 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