Product page
Single sprocket with hub, pitch 1/2", 20 teeth
- Manufacturer Part Number
- Piñón simple 1/2" Z20
- Brand
- MROwn brand
- Category
- Power transmission
- Subcategory
- Sprockets and gears
- Series
- paso 1/2"
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Description
MR Piñón simple 1/2" Z20 is a sprockets and gears reference, within Power transmission. Request a quote for Piñón simple 1/2" Z20 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The simplex sprocket 1/2" Z20 is a sprocket supplied by MR Accesorios Industriales, designed to transmit motion in 1/2" pitch chains. It has 20 teeth and a hub, and is manufactured in SAE 1045 steel by EMMAR. It is used in power transmissions where a medium speed ratio is required, with good engagement and even wear. If you need to replace a sprocket or build a new transmission, this model serves as a starting point for a quote.
This item is a simplex sprocket with hub, 1/2" pitch and 20 teeth (z=20), supplied by MR Accesorios Industriales and manufactured by EMMAR in SAE 1045 steel. The designation Simplex sprocket 1/2" Z20 indicates it has a single row of teeth, with a central hub for mounting on a shaft. The 1/2" pitch corresponds to ANSI 40 chains, and the 20 teeth define the transmission ratio when combined with another sprocket. SAE 1045 material is a carbon steel with good machinability and strength, suitable for tooth machining and subsequent heat treatment if required.
Typical applications for this type of sprocket are in chain transmissions of industrial machines: conveyors, elevators, mixers, mills, packaging equipment and material handling systems. It is also used in the agricultural sector, in implements and field machinery, and in factory equipment. Being 1/2" pitch and 20 teeth, it is common in moderate reduction ratios, where an intermediate output speed and good torque are sought.
To correctly select this sprocket, take into account the chain pitch (1/2"), the number of teeth (20) and the shaft diameter where it is mounted. The hub allows it to be fixed with a key or set screw, depending on the equipment design. Check the alignment between sprocket and sprocket, chain tension and lubrication. If the sprocket operates at high speeds or with heavy loads, it is advisable to evaluate heat treatment or a material with greater wear resistance.
If you need an equivalent sprocket or a nearby size, the most practical thing is to send us the current part number, the number of teeth and the pitch. With that data we can verify if this 1/2" Z20 model fits or if another is needed. We can also analyze variants in the number of teeth or in the type of hub. Write to us on WhatsApp and we will quote you.
At MR Accesorios Industriales we supply this sprocket and other power transmission components. If you want a quote for the Simplex sprocket 1/2" Z20 or ask about a similar size, send us the part number on WhatsApp and we will respond with the technical information and the corresponding quote.
Dimensions
- Pitch
- 1/2"
- Teeth (z)
- 20
- Material
- SAE 1045 steel
- Type
- Single sprocket with hub
Frequently Asked Questions
- What does it mean that it is 1/2" pitch?
- The 1/2" pitch is the distance between centers of two consecutive teeth. It corresponds to ANSI 40 type chains. It is important that the chain and sprocket have the same pitch so they engage correctly.
- Is this sprocket suitable for my machine?
- To know, you need to verify the chain pitch, the number of teeth and the shaft diameter. If your equipment uses a 1/2" chain and the original sprocket has 20 teeth, this model may be compatible. Consult us with your machine data.
- Can I request a different size?
- Yes. We supply sprockets with different numbers of teeth and hub types. Send us the part number, the number of teeth and the pitch you need on WhatsApp, and we will quote the variant that best suits you.

