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 
 

F8MX42S21-SH https://www.bdiexpress.com/medias/INDM-GPULLEY-SYNC-SOL-FL-QD-300x300.jpg?context=bWFzdGVyfHJvb3R8MTk1ODV8aW1hZ2UvanBlZ3xhRGhpTDJobE1pODVPRGswTnprek5EUTFOREEyTDBsT1JFMHRSMUJWVEV4RldWOVRXVTVEWDFOUFRGOUdURjlSUkY4ek1EQjRNekF3TG1wd1p3fDQzYzgzMWZhYjVmOGQ4MzE0ZWUyNmM5NGYzYTBlMWEwZTg1ZjRkZTE0YTBiMzc5ZjAwOWIzZjNmMjk0ZDNiZjk
Back to search results
21981030 Pulleys - Synchronous 

MARTIN SPROCKET & GR MARTIN SPROCKET & GR

F8MX42S21-SH

Description

F8MX42S21-SH ; SYNCHRONOUS BELT PULLEY

Synchronous Pulley; 21MM Belt Width; 8 MM Belt Pitch; 8M-21 Belt Style; 42 Teeth; 0.92MM Face Width; Bushed; 4.148MM Outside Diameter; 4.211MM Pitch Diameter; Yes Keyway; SH Bushing; No Minimum Plain Bore

Part #

F8MX42S21-SH

BDI #
21981030

Details

210.72 CAD 2099-12-31 http://schema.org/NewCondition https://schema.org/LimitedAvailability Your Price $ 210.72 / each BDIExpress
QTY

Inventory

Total: Available to order

Category
Pulleys - Synchronous
Brand
MARTIN SPROCKET & GR
Manufacturer Name
MARTIN SPROCKET & GEAR
Minimum Buy Quantity
N/A
EAN
0697950723853
Weight / US pound
2.5
Product Group - BDI
M02316
Belt Pitch
8 MM
Belt Style
8M-21
Number of Teeth
42
Mounting Method
Bushed
Flanges
Yes
Keyway Yes/No
Yes
Bushing Size
SH
Minimum Plain Bore
No
Other Features
Bushing Not Included | QD Bushing
Inch - Metric
Metric
Category - BDI
Pulley Synchronous
Harmonized Tariff Code
8483.50.90.80
Noun
Pulley
Keyword String
Synchronous
Manufacturer URL
https://www.martinsprocket.com
Weight / LBS
2.5
Long Description
Synchronous Pulley; 21MM Belt Width; 8 MM Belt Pitch; 8M-21 Belt Style; 42 Teeth; 0.92MM Face Width; Bushed; 4.148MM Outside Diameter; 4.211MM Pitch Diameter; Yes Keyway; SH Bushing; No Minimum Plain Bore
Outside Diameter
0.163 Inch | 4.148 Millimeter
Pitch Diameter
0.166 Inch | 4.211 Millimeter
Face Width
0.036 Inch | 0.92 Millimeter
Bushing Bore Range
1/2 To 1-11/16 Inch | 24 To 35 Millimeter
Flange Outside Diameter
0.193 Inch | 4.911 Millimeter
Bore
0 Inch | 0 Millimeter
Belt Width
0.827 Inch | 21 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