Jeremywell #40 Roller Chain Sprocket B Type 1" Bore Hardened 12 Tooth

4.5 4.5 out of 5 stars | 881 ratings

Price: 17.95

Last update: 09-10-2024


About this item

Bore Size: 1"
Sprocket Part Number: 40BS12H
Number of Teeth: 12
1045 Medium Carbon Steel meets ANSI and MARTIN Standard

Product Description

header1
12h

Jeremywell #40 Roller Chain Sprocket B Type 1" Bore Hardened 12 Tooth

Sprockets are durable toothed wheels that are used in combination with roller chains to power all types of machinery. As the sprocket spins, the teeth grab onto the chain and move other parts that interlock with the chain.

Using the right sprocket is just as important as choosing the right chain. If both pieces don’t complement each other, the system will not operate correctly. At Jeremywell, we offer a wide selection of high quality standard roller chain sprockets. Our sprockets are engineered to perform well under pressure and are long-lasting.

There are a broad selection of factors to keep in mind when selecting replacement sprockets, a simple way to determine the right sprocket is by considering the following factors:

  • The type of chain you would need the sprocket for.
  • The style of sprocket you are looking for:
    • Type A (Flat sprocket, no hubs)
    • Type B (1 Hub)
    • Type C (2 Hubs)
  • Number of Teeth needed.
  • Sprocket bore size.

#40 SPROCKET SPECIFICATIONS

Hub Style B Type
Teeth 12
Bore 1"
L.T.B. 0.875"
Material AISI 1045 Medium Carbon Steel
Outside Diameter 2.16"
Keyway 1/4" x 1/8"
Chain #40 Chain
Pitch Size 1/2"
40BS12H

Top reviews from the United States

e.c.jenkins
5.0 out of 5 stars good quality
Reviewed in the United States on July 23, 2024
worked as should
wade wilson
5.0 out of 5 stars Durable
Reviewed in the United States on June 14, 2024
Works great fits like it should
Debbie
5.0 out of 5 stars Easy
Reviewed in the United States on April 16, 2024
Needed a roller gear for an electric taurp on a trailer. Fit and worked great. Thanks
Amazon Customer
4.0 out of 5 stars adjustments needed
Reviewed in the United States on October 8, 2023
The 5/8 hole for the shaft was .10 thousands too small. Had to hone it out. one of the set screw holes needed to be cleaned with a tap. the sprocket was so heavy for what I was putting it on I had to drill holes to make it lighter. All of this was minor for me but for someone without the tools it would be tough.
Customer image
Amazon Customer
4.0 out of 5 stars adjustments needed
Reviewed in the United States on October 8, 2023
The 5/8 hole for the shaft was .10 thousands too small. Had to hone it out. one of the set screw holes needed to be cleaned with a tap. the sprocket was so heavy for what I was putting it on I had to drill holes to make it lighter. All of this was minor for me but for someone without the tools it would be tough.
Images in this review
Customer image Customer image
Tibb Tabby
5.0 out of 5 stars Excellent build quality!
Reviewed in the United States on August 18, 2024
It’s a solid, well machined sprocket and the bearing feels great; tight and smooth. Delivered exactly as ordered.
Dwayne lewton
5.0 out of 5 stars 60 tooth sproket
Reviewed in the United States on April 22, 2024
Looks like it's heavy duty I think it will work out fine with me
S. Dixon
5.0 out of 5 stars Worked with a little modification
Reviewed in the United States on September 15, 2023
Out of the box this sprocket didn’t Slide on to the TAV 4 driven shaft. I had to spend and 5-10 minutes opening it up with emery cloth and a round file.
However, once fitted it has worked great. I don’t know how many hours we have on it (a lot) but it’s still in great shape and doing what it’s supposed too.
There aren’t many options out there for a 9 tooth sprocket; if you need one; I’d say this is a solid choice with the understanding that it may require a little fitting.
Pfeiffer
5.0 out of 5 stars Return
Reviewed in the United States on March 16, 2024
Both gears were in the one box. Only credited me with one. The returns are great I'm not afraid to buy anything

Best Sellers in

 
 

BRINGSMART 12V 5rpm DC Worm Gear Motor 35kg.cm Self-locking Reversed Mini Turbine Geared Motor for DIY Robot Rotating Table D

4.4 4.4 out of 5 stars 533
26.22
 
 

BESTORQ B90 or 5L930 V-Belt, Classic Wrapped Rubber X3 V-Belt, Black, 93" Outside Circumference x .66" Width x .43" Height, P

4.4 4.4 out of 5 stars 252
36.05
 
 

1 PCS 20mm x 200mm (0.79 x 7.87 inches) Vigorous Linear Motion Rod, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D P

4.6 4.6 out of 5 stars 67
17.99
 
 

RVMARINEPAT 18 Inch High Speed Linear Actuator 12V 1000N Stroke 14mm/s IP54 Waterproof Linear Actuator with Reverse Polarity

4.5 4.5 out of 5 stars 28
51.99
 
 

4pcs 150mm T Slot 2020 Aluminum Extrusion European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY Black(5.9in

4.7 4.7 out of 5 stars 659
11.99
 
 

(100 Pieces) PGN - 1/2" Inch (0.5") Precision Chrome Steel Bearing Balls G25

4.7 4.7 out of 5 stars 867
13.95
 
 

QWORK 2AK2578 Double Groove Pulley/Sheave, 2.55"OD 7/8" Bore, AK Fixed Bore Pulley, for A, 3L & 4L (A & AX) V-Belts, Cast Iro

4.7 4.7 out of 5 stars 1250
15.97
 
 

VacMaster 978231 1 Quart Oil for VacMaster

4.7 4.7 out of 5 stars 203
24.95