TWIN DISC / Clutches and mechanical PTOs
Twin Disc BD 390
BD 390: Twin Disc mechanical clutch or PTO for land-based industrial equipment. This page brings together verified ESPI catalogue values and documented differences between versions.
TWIN DISC BD 390
Interactive 3D exploded view
No published 3D CAD
We did not find an official CAD that can be published for this configuration. The technical page remains available: send us photos of the identification plate and part so we can identify it without assigning unverified codes.
Request serviceThe model and serial number are different. You’ll find the serial number on the Twin Disc unit’s identification plate; we use it to check that a part fits your particular unit.
Verified technical data
- Model
- BD 390
- Family
- BD
- Maximum torque
- 1320 N m
- Maximum speed
- 2900 rpm
- Weight by configuration
- SAE 3 · 11.5 in: 95 kg
- Weight by configuration
- SAE 2 · 11.5 in: 98 kg
These values apply to the configuration shown in the document. We check your machine’s details and availability before confirming the replacement part.
Technical documentation
Manufacturer source ↗Source page: 2–3
Official Twin Disc family page ↗
Representative image of the product family; check the model on the identification plate.
Ask about a part for this modelWhat to send us for a BD 390 part
Start with a clear photo of the identification plate and one of the part. Include the part number if you know it, and describe the problem. Follow the manufacturer’s documentation and use qualified personnel for disassembly.
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