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Steel sprocket with split hub and toothed rim · MR Piñón doble 1/2" Z45
Double sprocket with hub, pitch 1/2", 45 teeth

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Double sprocket with hub, pitch 1/2", 45 teeth

Manufacturer part numberPiñón doble 1/2" Z45Also known as: Piñóndoble1/2"Z45
Brand
MR
Series
paso 1/2"
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Description

MR Piñón doble 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 doble 1/2" Z45 and any equivalents.

The MR-PINON-DOBLE-1-2-Z45 is a double sprocket with a 1/2" pitch and 45 teeth, made from SAE 1045 carbon steel. It transfers motion between parallel shafts when paired with a 1/2" pitch roller chain, and its integrated hub allows direct mounting on the shaft. Because the material is machinable, the bore and any fixing holes can be finished to match the equipment.

Reading the code: "double sprocket" refers to the toothed profile, "1/2 inch" is the chain pitch, and "Z45" means 45 teeth. The hub is a central extension that seats on the shaft and can be bored, keyed, or drilled for set screws as needed. SAE 1045 is a medium-carbon steel chosen for strength and machinability in moderately loaded drives.

This sprocket fits chain drives on agricultural machines, conveyors, bucket elevators, mixers, and general industrial equipment. It also suits parallel-shaft systems where the ratio is set by the tooth count. If your shaft diameter or length differs from a standard size, MR can supply the sprocket with the hub machined to your dimensions when you provide them at the time of inquiry.

When selecting, confirm the chain pitch (1/2"), the tooth count (45), and the shaft diameter. The hub can be fixed with a key, set screws, or a fixing screw, depending on the design. Check alignment between sprockets and chain tension to avoid premature wear. For a standard shaft, the bore can be machined to size; otherwise, send a sketch or the exact dimensions.

Need a different tooth count, pitch, or hub size? MR can source it. Send the part number MR-PINON-DOBLE-1-2-Z45 or the original sprocket data—pitch, teeth, shaft diameter, and fixing type—so a similar part or a hub adaptation can be evaluated. These sprockets can also be combined with ANSI chains and other transmission components MR supplies.

To request a quote for this double sprocket 1/2" Z45 or ask about a variant, message MR on WhatsApp or by email with the part number MR-PINON-DOBLE-1-2-Z45. If you are unsure about chain compatibility or shaft mounting, send a photo or a dimensioned diagram and the team will help you choose.

Dimensions

Pitch
1/2"
Teeth (z)
45
Material
SAE 1045 steel
Type
Double sprocket with hub

Frequently asked questions

What does "double with hub" mean on this sprocket?
It means the sprocket has a toothed section and a central hub that extends for mounting on the shaft. The hub allows fixing with a key or set screws and helps align the sprocket with others in the drive.
Can the hub bore be machined to my shaft?
Yes. MR can source the sprocket with the hub bore machined to the shaft diameter and length you need. Provide the exact dimensions or a shaft drawing when you inquire.
Which chain fits this sprocket?
It fits a 1/2-inch (12.7 mm) pitch roller chain. Verify that the pitch matches your chain and that 45 teeth give the transmission ratio you want.
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