13 best mechanical roller chain sprockets

Mechanical roller chain sprockets are essential components in power transmission systems, particularly in machinery and industrial equipment. They are used in combination with roller chains to transfer motion and power from one rotating shaft to another.Here's what you need to know about mechanical roller chain sprockets:

  1. Purpose: Roller chain sprockets are designed to engage with and transfer power to roller chains. They come in pairs, with one sprocket mounted on each of the two shafts that need to be connected.

  2. Types: There are various types of roller chain sprockets, including:

    • Single-Strand Sprockets: These are the most common type, used for transmitting power in a single chain. They come in a range of tooth counts and sizes to match specific applications.

    • Double-Strand Sprockets: These have two sets of teeth, allowing them to accommodate two parallel roller chains. They are often used in applications requiring higher torque transmission.

    • Idler Sprockets: These sprockets do not transmit power but guide the chain or maintain chain tension. They are commonly used to create complex chain paths.

    • Taper-Lock Sprockets: These sprockets have a taper-lock hub design that allows for easy installation and removal. They are commonly used in situations where sprockets need to be frequently replaced or adjusted.

  3. Tooth Profile: The shape and size of the sprocket teeth are critical for proper engagement with the chain. Standard tooth profiles include ANSI, BS, and DIN standards, with each designed to work with specific chain types and pitches.

  4. Materials: Roller chain sprockets are typically made from materials such as steel, stainless steel, or cast iron. The choice of material depends on factors like the application's load, environmental conditions, and desired durability.

  5. Bore Size: Sprockets have a central bore or hub where they are mounted onto the shaft. The bore size must match the diameter of the shaft for a secure fit. In some cases, sprockets may require keyways or set screws to ensure a tight connection.

  6. Alignment: Proper alignment of sprockets on their respective shafts is crucial for efficient power transmission and to prevent premature wear of the chain and sprockets. Misalignment can lead to excessive stress and reduced service life.

  7. Maintenance: Like other mechanical components, roller chain sprockets require regular inspection and maintenance. Lubrication and cleaning are essential to reduce friction and wear.

  8. Application: Roller chain sprockets are used in a wide range of industrial applications, including conveyor systems, manufacturing machinery, agricultural equipment, automotive transmission systems, and more. They are crucial for transmitting power reliably and efficiently in these systems.

  9. Sprocket Ratio: In systems with multiple sprockets, the ratio of the number of teeth on the driving sprocket to the driven sprocket affects the speed and torque of the system. This ratio is important for achieving the desired output.

In summary, mechanical roller chain sprockets play a vital role in power transmission systems, enabling the efficient transfer of motion and power between rotating shafts. Proper selection, installation, and maintenance of these components are essential for the smooth and reliable operation of industrial machinery and equipment.

Below you can find our editor's choice of the best mechanical roller chain sprockets on the market
  

Jeremywell 40BS12H-3/4" Bore 12 Tooth B Type Sprocket for 40 Roller Chain

Jeremywell

Based on 6 reviews Check latest price

Product description

Jeremywell finished Bore B-Hub Sprocket features one setscrew over the keyway and a second setscrew at 90 degrees. With high-quality carbon steel construction, this sprocket with 1/2 inch pitch has 12 teeth, 3/4 inch finished bore and a recessed groove in hub for chain clearance. The sprocket has a black oxide finish and is heat treated. ANSI sprocket # 40. Jeremywell produces world-class power transmission products using select alloy steel, advanced quality control, and testing systems to ensure the highest quality.



Teeth: 12

Bore Size: 3/4"

OD: 2.165" Hub Diameter: 1.563" Length Thru Bore: 0.875"

Durable & High-Performance Sprocket

Fully Meets All ANSI and MARTIN Standards

Manufactured For #40 Roller Chain Harden Teeth at HRC 45-55

Fully Black Oxide Coated

Keyway with 2 SETSCREWS AT 90 DEGREES

  • Bore Size: 3/4"
  • Sprocket Part Number: 40BS12H
  • Number of Teeth: 12
  • 1045 Medium Carbon Steel meets ANSI and MARTIN Standard

Jeremywell 40B60T 1" Bore Go Kart Live Axle Sprocket 60 Teeth for 40 41 420 Roller Chain with 1/4" Key Included

Jeremywell

Based on 117 reviews Check latest price

Product description

Brand new from the factory. High Quality #40 1"Bore Live Axle Sprocket 60 Tooth for 40/41/420 Chain 40B60T-1 Bore. 3 Center Hole, 2 Set Screw Install, 1 Key. Fits 0.5'' (1/2") pitch chains(40/41/420), 60 Teeth. with 1/4" Keyway and includes 1/4" Key

  • Hub Dia:1.752"; 1/4" Keyway with 2 Setscrews at 90 degrees
  • No harden teeth
  • Same business day order processing before 12:30PM PDT
  • Satisfaction Guaranteed
  • This is commonly used on Yerf-dog and Murray go karts and can be used on any 1" live axle.

User questions & answers

Question: what is the outside diameter of this item
Answer: No. It’s 90 degree. I had bought it wanting the same thing.
Question: Would this sprocket fit on a 1" pipe in diameter? Trying to make a live axle for my go kart and i'm not sure if this would fit
Answer: Hello! There is an electric motor included in the conveyor belt. It has a max speed of 120 mm/s and a max acceleration of 1100 mm/s².
Question: Do you have a 48 tooth 1 inch just like this one
Answer: No. it is a stepper motor, should be connected to a 12V stepper motor driver.
Question: What size is the key
Answer: The max ampere is 1.2A of the 12V power supply.

Makermotor Electric Gear Motor 12v Low Speed 50 RPM Gearmotor DC + Roller Chain Sprocket Gear

Based on 25 reviews Check latest price

Product description

This is a brand new electric gear motor that has extremely high torque to handle many heavy-load applications. The specifications are listed below:



Rated Voltage: 13.5 VDC;

Rated Speed: 50 RPM;

Rated Load: 60 Watts;

Rated Torque: 6 N-m (4.4 ft-lb);

Mounting: M6 screw holes;

Sprocket Standard: ANSI/ISO #35 to fit roller chain #35 (Pitch 3/8", Roller Diameter 0.200", Roller Width 3/16");

Sprocket Thickness: 0.168";

Sprocket Number of Teeth: 10;

Manufacturer: Makermotor;

This motor is ideal for machinery, automotive, or home/garage projects.

  • Rated Voltage: 13.5 VDC
  • Rated Speed: 50 RPM
  • Rated Torque at 50 RPM: 6 N-m (4.4 ft-lb)
  • Rated Load: 60 Watts
  • Sprocket Standard: ANSI/ISO #35 to fit roller chain #35 (Pitch 3/8", Roller Diameter 0.200", Roller Width 3/16")

User questions & answers

Question: Is there any adjustment to balance motor speed
Answer: Need to check to see if enough coolant is in the cooling system. Low coolant can stop hot coolant from circulating through heater core. Need to check if both heater hoses are hot. This is best done within 5 minutes of a cold start up. This test confirms heater core not clogged up. Need to put a scan tool on truck to see if temp controller is commanding the blend doors to open.
Question: what size chain does this need
Answer: Yes this will replace the passenger temperature blend door
Question: How much current does this motor need at 12vdc
Answer: Yes a bad temperature actuator for the driver side could be the problem. This actuator is actually located near the top of the dashboard in the center. However the issue could also be a temperature sensor to.
Question: Can i get it with a #40 sprocket
Answer: Hi, this actuator will replace all the 3 actuators on your passenger side dash and would fix the following functions. Driver Side Temperature Recirculation/Outside Air Passenger Side Temperature

25 Chain Drive Sprocket 12T Bore 8mm Pitch 1/4" For #25 04C Roller Chain (Bore:8mm)

Based on 11 reviews Check latest price

Product description

Product Size:

Model: 1/4" 12Teeth

Pitch: 6.35

Step diameter: about 18mm

Total thickness: about 15mm

Tooth thickness: 3mm

Bore: 5mm/ 6mm/ 8mm/ 10mm

Fixing screw: 2 * M5



Package Including:

1pcs

  • Model: 1/4" 12Teeth Chain Drive Sprocket
  • Pitch: 1/4" (6.35mm)
  • Step diameter: about 18mm
  • Total thickness: about 15mm
  • Fast Shipping Guarantee: All parcel will be delivered by China Post in 7-15 days

User questions & answers

Question: How much does the 5mm bore sprocket weigh
Answer: 1/4”.

Martin Roller Chain Sprocket, Hardened Teeth, Taper Bushed, Type A Hub, Double Strand, 60 Chain Size, For 2012 Bushing, 0.75" Pitch, 19 Teeth, 2" Max Bore Dia., 4.945" OD, 1.341" Width

MARTIN

Product description

  • Double strand sprocket with two sets of teeth side by side around the circumference for use with double strand chains, which have a higher tensile strength and can support greater loads than single strand chains
  • Pitch of 3/4 inch for size 60 chains
  • Sprocket bore has tapering grooves for inserting and locking into place a taper bushing that fits the diameter of the shaft
  • Type A sprocket with a simple plate, bore, and no protruding hub on either side for applications where mounting space is limited
  • Sprocket teeth hardened by electrical induction or flame to increase teeth durability against wear, lengthening the service life of the sprocket

Jeremywell 35B50T-5/8" Bore 50 Tooth B Type Sprocket for 35 Roller Chain

Jeremywell

Based on 10 reviews Check latest price

Product description

This 35B50 sprocket is a durable, premium quality, and precision sprocket that is manufactured out of high-quality steel. This sprocket is manufactured for optimum performance, durability, and strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which ensures proper contact between the #35 roller chain and sprocket which prevents premature wear or breakage. It is also black oxide coated which increases resistance to the environment and will prevent early rust build-up.



Number Of Teeth: 50

Outside Diameter: 6.19"

Stock Bore Size: 5/8"

Hub Diameter: 2-1/4"

Length Through Bore: .98"



Durable & High-Performance Sprocket

Fully Meets All ANSI Standards

Manufactured For #35 Roller Chain

Harden Teeth at HRC 30-45

Fully Black Oxide Coated

Keyway with 2 SETSCREWS AT 90 DEGREES

  • Bore Size: 5/8"
  • Sprocket Part Number: 35B50
  • Number of Teeth: 50
  • 1045 Medium Carbon Steel meets ANSI and MARTIN Standard

KOVPT # 35 Roller Chain Plate Sprocket A Type 30 Teeth 0.5" Bore Pith 0.378" Carbon Steel Black 1PCS

KANZNAN

Based on 61 reviews Check latest price

Product description

35 Roller Chain Plate Sprocket

Sprocket Pitch: 3/8 inches(9.525mm)

Number of Teeth: 30 Tooth

Bore Diameter: 1/2 inches(12.7mm)

Outside Diameter: 3.79 inches(96.266mm)

Overall Thick:0.1771 inches(4.5mm)

Material: Carbon Steel

  • Material:Carbon Steel
  • Teeth Number: 30 Teeth
  • Bore Diameter :1/2" ; Pitch:3/8"
  • What You Get : 1PCS x Roller Chain Plate Sprocket
  • Outside Diameter: 3.79"

User questions & answers

Question: Can you weld this straight on the 1/2 shaft
Answer: 1" OD, yes. Might checkout - gopowersportscom/axle-38/ also...
Question: Will this sprocket work whit a bike sproket
Answer: I have a 60 tooth for more torque

41BS 13 Roller Chain Sprocket, Bored-to-Size, Type B Hub #41 Chain 7/8 bore

AMAC

Based on 1 reviews Check latest price

Product description

These are type BS sprocket, also known as a bored-to-size sprocket, includes two setscrews and a keyway, and is suitable for use with the series 40 chain with a 1/2” pitch. This sprocket has been adapted for installation on the shaft without additional components. Made from high carbon steel, it has high strength and durability.

Jeremywell 25B30H-1/2'' Bore 30 Tooth B Type Sprocket for 25 Roller Chain

Jeremywell

Based on 18 reviews Check latest price

Product description

Brand new from the factory

  • Hub Dia:1-1/2"; 0.187" Keyway with 2 Setscrews at 90 degrees
  • No harden teeth
  • B Type, 30 Teeth, 1/2" Bore
  • Material: AISI 1045 Medium Carbon Steel
  • Material: AISI 1045 Medium Carbon Steel

User questions & answers

Question: what is the od of this sprocket
Answer: It really depends on your torque. The motor is rated at 6 amps. Exceeding 6 amps means the motor is overloaded.
Question: Does it come with the 2 set screws? and if not, What is the pitch for them
Answer: Unfortunately, I only have the #35 sprocket.
Question: What's the bore size in other words whats the size of the middle hole
Answer: 10 inch

Big Bearing 40B30 30 Tooth Sprocket for #40 Roller Chain, 1" Bore, 5.057" Outside Diameter

Big Bearing

Based on 15 reviews Check latest price

Product description

Carbon steel with heat treated teeth. Keyway slot tapped for set screw. 40 Pitch, 30 teeth. 1" Bore, 5.057" Outside Diameter.

  • Carbon steel with heat treated teeth
  • Keyway slot tapped for set screw
  • 40 Pitch, 30 teeth
  • 1" Bore
  • 5.057" Outside Diameter

KOVPT # 40 Roller Chain A-Plate Sprocket 18 Teeth Bore 0.625" Pitch 0.5" OD 3.14" Carbon Steel for 40 Chain Size

KANZNAN

Based on 34 reviews Check latest price

Product description

# 40 Roller Chain A-Plate Sprocket

Sprocket Pitch: 1/2 inches(12.7mm)

Number of Teeth: 18 Tooth

Bore Diameter: 5/8 inches(15.875mm)

Outside Diameter: 3.41 inches(79.756mm)

Overall Thick:0.275 inches( 7mm)

Material: Carbon Steel

  • Material:Carbon Steel
  • Teeth Number: 18 Teeth
  • Bore Diameter :5/8" ; Pitch:1/2"
  • What You Get : 1PCS x Roller Chain Plate Sprocket
  • Outside Diameter: 3.14"

Jeremywell 40BS11H-1/2" Bore 11 Tooth B Type Sprocket for 40 Roller Chain

Jeremywell

Based on 4 reviews Check latest price

Product description

Jeremywell finished Bore B-Hub Sprocket features two setscrews at 90 degrees. With high-quality carbon steel construction, this sprocket with 1/2 inch pitch has 11 teeth, 1/2 inch finished bore and a recessed groove in hub for chain clearance. The sprocket has a black oxide finish and is heat treated. ANSI sprocket # 40. Jeremywell produces world-class power transmission products using select alloy steel, advanced quality control, and testing systems to ensure the highest quality.



Teeth: 11

Bore Size: 1/2"

OD: 2.01"

Hub Diameter: 1.375" Length Thru Bore: 0.875"

Durable & High-Performance Sprocket

Fully Meets All ANSI and MARTIN Standards

Manufactured For #40 Roller Chain

Harden Teeth at HRC 45-55

Fully Black Oxide Coated

Keyway with 2 SETSCREWS AT 90 DEGREES

  • Bore Size: 1/2"
  • Sprocket Part Number: 40BS11H
  • Number of Teeth: 11
  • 1045 Medium Carbon Steel meets ANSI and MARTIN Standard

Chain Drive Sprocket 1/4" 25T Bore 8mm Pitch 6.35mm For #25 04C Chain (Bore:8MM)

Based on 5 reviews Check latest price

Product description

Product Size:

Model: 1/4" 25Teeth

Pitch: 6.35

Step diameter: about 35mm

Total thickness: about 15mm

Tooth thickness: 3mm

Bore: 6mm/ 8mm/ 10mm/ 12mm

Fixing screw: 2 * M5



Package Including:

1Pcs

  • Chain Drive Sprocket 1/4" 25T Pitch 6.35mm For #25 04C Chain
  • Step diameter: about 35mm
  • Total thickness: about 15mm
  • Tooth thickness: 3mm
  • Fast Shipping Guarantee: All parcel will be delivered in 7-15 days

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