
Single sprocket with hub, pitch 1/2", 45 teeth
- Brand
- MR
- Category
- Power transmission
- Subcategory
- Sprockets and gears
- Series
- paso 1/2"
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Description
MR Piñón simple 1/2" Z45 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" Z45 and any equivalents.
This simplex sprocket with hub is designed for 1/2" pitch chain drives and has 45 teeth. It is made of SAE 1045 steel and is supplied by MR. The hub allows mounting on a keyed shaft and securing with a set screw or bolt, depending on the assembly. Use it to transmit motion between parallel shafts where a specific ratio and a 1/2" pitch chain are required.
The sprocket is identified by the commercial designation Simplex sprocket 1/2" Z45 and the internal code MR-PINON-SIMPLE-1-2-Z45. It features a single row of teeth (simplex) and a central machined hub. The 1/2" pitch and 45 teeth determine the transmission ratio when paired with a driven sprocket. The SAE 1045 carbon steel construction is common in power transmission applications.
Typical uses include chain drives in agricultural machinery, conveyors, elevators, mills, mixers, and general power transmission equipment. It also appears in machine tools, packaging lines, and motion systems where the ratio is set by the number of teeth. Because MR supplies this sprocket, you can inquire about other variants within the same 1/2" pitch series.
When selecting this sprocket, consider the chain pitch (1/2"), the number of teeth (45), and the shaft diameter. The hub bore must match the shaft, and the keyway must be compatible. Check alignment between sprocket and driven wheel, lubrication, and chain tension. If you need a different tooth count or hub diameter, ask for an equivalent.
To request a quote or an equivalent, send the code MR-PINON-SIMPLE-1-2-Z45 via WhatsApp or email. Including the pitch, number of teeth, and shaft diameter helps identify the right variant quickly. You can also ask about other sprockets in the same series with different tooth counts or about compatible sprockets. Quotes are based on the code or the full designation.
If this sprocket does not exactly match your requirement, contact us and we will review it with you. MR supplies sprockets and chain wheels and can help you find the most suitable option for your drive. Send the code MR-PINON-SIMPLE-1-2-Z45 or the designation Simplex sprocket 1/2" Z45 to receive a quote.
Dimensions
- Pitch
- 1/2"
- Teeth (z)
- 45
- Material
- SAE 1045 steel
- Type
- Single sprocket with hub
Frequently asked questions
- What does simplex with hub mean?
- It means the sprocket has a single row of teeth and a central machined hub for shaft mounting. The hub allows securing with a key and screw and provides a larger bearing surface than a sprocket without a hub.
- What material is it made of?
- It is made of SAE 1045 steel, a carbon steel commonly used in power transmission. It is suitable for moderate loads and can be machined to adapt the hub diameter or keyway.
- Can I request a different number of teeth?
- Yes. Since MR supplies this sprocket, you can ask about other tooth counts within the 1/2" pitch. Send the pitch, teeth, and shaft diameter you need via WhatsApp or email so we can provide the available option.

