About:

This is the original mainspring drum (carriage power spring) for the Olivetti Studio 42 and Hispano-Olivetti Studio 46 typewriters. It is the main tension spring responsible for driving the carriage movement, ensuring proper escapement, stable travel and smooth return. Fully functional, cleaned and original vintage spare part.

Important:
The price includes the mainspring drum only, not the typewriter.

Typewriter Spare Parts for Restoration and Repair:

1. Keys, 2. Typebars, 3. Spools, 4. Platen and Rollers, 5. Chassis, 6. Screws, 7. Rubber Feet, 8. Internal Mechanism Parts, 9. Carriage Return Mechanism, 10. Escapement, 11. Feed Roller, 12. Hammers, 13. Linkage System, 14. Ribbon Spool Pins, 15. Carriage Lock, 16. Margin Release Lever, 17. Shift Lever, 18. Paper Holder/Bail, 19. Paper Guide, 20. Back Spacer, 21. Typewheel, 22. Ratcheting Mechanism, 23. Shift Key Lock, 24. Typewriter Belt, 25. Key Lever Spring, 26. Keybed, 27. Stabilizer, 28. Tabulator, 29. Main Spring, 30. Escape Spring, 31. Return Spring, 32. Shift Spring, 33. Tension Springs, 34. Linkage Cords and Wires, 35. Key Lever Cords, 36. Body and Top Covers.

Custom and Hard-to-Find Parts

We also provide custom 3D-printed solutions for rare or unavailable parts. If you don’t see what you need, contact us and we’ll work with you to design and produce the exact part for your typewriter.

How Our Typewriter Spare Parts On-Demand Service Works

1. Submit Your Request
Contact us via chat or email with the specific part you need. Include photos or videos, measurements, and your typewriter’s model and serial number if available. This helps us verify compatibility.

2. Initial Assessment Fee
A €25 one-time assessment fee covers the initial work of checking availability and compatibility. Once received, we’ll confirm availability or explore custom solutions if necessary.

3. Final Price Confirmation
After the assessment, we’ll provide the final price. Your €25 assessment fee will be applied as a discount on the total.