Spline & Polygon Shafts
Torque Without a Keyway
Spline shafts to DIN 5463 and polygon profiles to DIN 32711 and DIN 32712, cut up to six metres and hardened in our own induction plant.
Shafts, Hubs and Profiles
A polygon connection carries more torque than a keyway of the same size and stays concentric at speed, which is why it keeps replacing splines on high-duty drives. NTT cuts both: classical DIN 5463 splines and P3G or P4C polygon profiles, together with the matching hubs, on shafts up to six metres, then heat-treats and coats them in house.
- Spline profile DIN 5463: shafts up to 6 m in C45, 42CrMo4 and 1.4301 stainless steel.
- Polygon P3G and P4C: DIN 32711 and DIN 32712 profiles, stronger and more concentric than splines.
- Hubs: round, flanged, split and collar clamp designs in C45, Rg7 brass and stainless.
- Many standards: DIN 5480, DIN 5482, DIN 9611, ISO 4156 and ANSI B92.1.
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50+ Years in Power Transmission
Family-owned Swedish manufacturer, producing across our own plants in Sweden and Poland.
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ANSI, BS & DIN Standards
Drop-in compatible with your existing drives, sprockets and shafts.
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European Stock, Fast Delivery
Standard items held ready across our warehouses, made-to-order on short lead times.
What We Can Make
Profiles, materials and treatments available from our own machining and hardening lines.
Profiles & Standards
- Spline DIN 5463
- Polygon P3G (DIN 32711)
- Polygon P4C (DIN 32712)
- DIN 5480 / 5482 / 9611
- ISO 4156 and ANSI B92.1
Materials
- C45 steel
- 42CrMo4 steel
- 1.4301 stainless steel
- Rg7 brass for hubs
- Shafts up to 6 metres
Treatment & Finish
- Induction hardening
- Quenching and tempering
- Nitriding
- Zinc and nickel plating
- Black oxide