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 
 

120S42 https://www.bdiexpress.com/medias/INDXXXSPKTXX-RC-C-1-ST-KW-STL-300x300.jpg?context=bWFzdGVyfHJvb3R8MzQ0NjR8aW1hZ2UvanBlZ3xhRFJtTDJoak5TODVPVFEwTWpJeU16TTFNREEyTDBsT1JGaFlXRk5RUzFSWVdGOVNRMTlEWHpGZlUxUmZTMWRmVTFSTVh6TXdNSGd6TURBdWFuQm58OTI4M2IxYTJkM2MwOTY4Yzk5MzE1ZWQxNjI4NTMzYmEzMjliMjVmZTlkOTI2N2YyMjA5ZWM1YTgwZWY5OGM1Nw
615208 Roller Chain Sprockets 

MARTIN SPROCKET & GR MARTIN SPROCKET & GR

120S42

Description

120S42 ROLLER CHAIN SPROCKET ; MST SINGLE STRAND

Roller Chain Sprocket; 120 Chain; 42 Teeth; 1 Row of Teeth; No Hardened Teeth; 20.916" Outside Diameter; 20.073" Pitch Diameter; C-Hub Both Sides; Bushed Mount; S1 Bushing; 1-1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Part #

120S42

BDI #
615208

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
MARTIN SPROCKET & GR
Manufacturer Name
MARTIN SPROCKET & GEAR
Minimum Buy Quantity
N/A
Weight / Kilogram
37.723
EAN
0697950104966
Product Group - BDI
M02312
Chain Size
120
Number of Teeth
42
Number of Rows of Teeth
1
Hub Type
C-Hub Both Sides
Mounting Method
Bushed
Bushing Size if bushed
S1
Hardened Teeth
No
Chain Type
ANSI Roller Chain
Keyway Yes/No
Yes
Material
Steel
Minimum Plain Bore
No
Other Features
Split Taper Bushing
Inch - Metric
Inch
Category - BDI
Sprockets
Harmonized Tariff Code
8483.90.10.50
Noun
Sprocket
Keyword String
Roller Chain
Manufacturer URL
https://www.martinsprocket.com
Weight / LBS
90
Long Description
Roller Chain Sprocket; 120 Chain; 42 Teeth; 1 Row of Teeth; No Hardened Teeth; 20.916" Outside Diameter; 20.073" Pitch Diameter; C-Hub Both Sides; Bushed Mount; S1 Bushing; 1-1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
Outside Diameter
20.916 Inch | 531.266 Millimeter
Bushing Bore Range
1-11/16 To 4-1/4 Inch | 42 To 110 Millimeter
Bore
0 Inch | 0 Millimeter
Pitch Diameter
20.073 Inch | 509.854 Millimeter
Chain Pitch
1.5 Inch | 38.1 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