Single sprocket with hub, pitch 1/2", 21 teeth
- Brand
- MR
- Category
- Power transmission
- Subcategory
- Sprockets and gears
- Series
- paso 1/2"
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Description
MR Piñón simple 1/2" Z21 belongs to sprockets and gears, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for Piñón simple 1/2" Z21 and any equivalents.
The simplex sprocket 1/2" Z21 is a single-row sprocket with hub, designed for 1/2" pitch chains. It has 21 teeth and is machined from SAE 1045 steel. This sprocket is used in power transmission systems that require a specific speed ratio and direct mounting on the shaft. For replacement or new builds, the part number MR-PINON-SIMPLE-1-2-Z21 provides a clear reference for your inquiry.
Key specifications: chain pitch 1/2", number of teeth 21 (Z21), simplex configuration (single row), and a hub for shaft mounting. The material is SAE 1045 carbon steel, known for good machinability and strength in moderate-load transmission applications. The hub bore and keyway are defined at the time of order.
Typical applications include agricultural machinery, conveyors, elevators, belt drives, and general industrial equipment where a fixed ratio between two shafts is needed. As a wear part, inspect the sprocket when you notice increased noise, chain jump, or deformed tooth profiles. Timely replacement helps avoid damage to the chain and other drive components.
When selecting a sprocket, consider chain pitch, number of teeth, shaft diameter, and fastening method. The hub can be machined with a through bore, keyway, set screws, or other fastening options. Check alignment between sprocket and driven wheel, chain tension, and lubrication. Misalignment accelerates wear on both sprocket and chain and can cause vibration.
To request a quote or an equivalent, send the part number MR-PINON-SIMPLE-1-2-Z21 via WhatsApp or email. You can also provide the pitch, number of teeth, and shaft diameter, and we will confirm alternatives within the same series. For custom hub machining, include the bore, keyway, and any other mounting conditions so the quote is complete.
MR Industrial Accessories LLC supplies this sprocket along with bearings, mounted units and housings, power transmission components, seals, lubrication, and maintenance tools. We serve customers across the United States and in several Latin American countries. Send the part number or your required dimensions via WhatsApp or email, and our team will respond promptly with a quote and assistance in choosing the right part.
Dimensions
- Pitch
- 1/2"
- Teeth (z)
- 21
- Material
- SAE 1045 steel
- Type
- Single sprocket with hub
Frequently asked questions
- What does 1/2" pitch and 21 teeth mean?
- The 1/2" pitch is the distance between chain rollers, and the 21 teeth define the transmission ratio with the driven sprocket. Both must match your chain and assembly.
- Can the hub bore be machined to my specifications?
- Yes. The hub can be machined to your required shaft diameter, keyway, and fastening method. Provide these dimensions when requesting a quote.
- How do I request an equivalent sprocket?
- Send the part number MR-PINON-SIMPLE-1-2-Z21 or specify pitch, number of teeth, and shaft diameter via WhatsApp or email. We will suggest a suitable alternative or arrange manufacturing.