
Double sprocket with hub, pitch 3/4", 39 teeth
- Brand
- MR
- Category
- Power transmission
- Subcategory
- Sprockets and gears
- Series
- paso 3/4"
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Description
MR Piñón doble 3/4" Z39 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 3/4" Z39 and any equivalents.
This double-row sprocket with hub is identified by the code 3/4" Z39. It runs on 3/4" pitch chains and has 39 teeth. The hub allows it to be mounted on a shaft and secured with a key or set screw. It is made of SAE 1045 steel.
The 39 teeth (z=39) and 3/4" pitch define the chain it accepts. The double row of teeth lets you use two chains on the same shaft or increase the drive capacity. The hub provides a mounting surface for the shaft and a place for the keyway or set screw. SAE 1045 steel gives the sprocket good machinability and wear resistance.
Typical applications include agricultural equipment such as seeders and harvesters, grain elevators, conveyors, and industrial transmission systems. You will often find this type of sprocket inside gearboxes and transmission cases where two chains need to be synchronized or where one chain alone is not enough.
When selecting a replacement, confirm the chain pitch (3/4"), the tooth count (39), and the shaft diameter. The hub bore must match the shaft, and the fastening method (keyway, set screw, or taper bushing) must be compatible. If you need a different hub diameter or tooth count, we can source a special size.
To request a quote, send the part number MR-PINON-DOBLE-3-4-Z39 or the full designation via WhatsApp or email. If you are unsure about the exact part, our team can suggest an equivalent and help you choose the right sprocket for your equipment.
As a supplier of power transmission components, we also carry other sprockets, chains, and related parts. If you need a different pitch or number of teeth, let us know and we will assist you.
Dimensions
- Pitch
- 3/4"
- Teeth (z)
- 39
- Material
- SAE 1045 steel
- Type
- Double sprocket with hub
Frequently asked questions
- Is this sprocket suitable for 3/4" pitch chain?
- Yes, it is designed for 3/4" pitch chains. Verify that your chain is 3/4" pitch and that the 39 teeth match the transmission ratio you need.
- Can the hub diameter be modified?
- We can source the hub at the shaft diameter you require. Contact us via WhatsApp with the exact measurement and we will provide a quote.
- What material is the sprocket made of?
- It is made of SAE 1045 steel, a carbon steel with good mechanical strength and hardenability. If you need another material or treatment, we can evaluate it.

