Fastening and locking parts of wind turbine gearboxes — slotted nuts, retaining rings, pins, keys, screws (DIN 471/472/912/933/981/6885, ISO 2338)
Country: Germany · Model: DIN 471 / 472 / 912 / 933 / 981 / 6885
Slotted nuts, retaining rings, pins, a key, screws and bolts for the bearing assemblies and shaft connections of gearboxes PEAB 4435, PEAB 4456 and PZAB 3541. These are DIN and ISO products, but in the materials, strength classes and tolerances set by the gearbox documentation. They are part of repair kits for wind turbines of 2 000, 2 300 and 3 600 kW.
- Applicability
- PEAB 4435 (V80/V90, 2 000 kW); PEAB 4456 (SWT-2.3, 2 300 kW); PZAB 3541 (SWT-3.6, 3 600 kW)
- Slotted nuts
- M165 × 3 (16MnCrS5); KM 26 and HM 3044 per DIN 981
- Retaining rings
- for shafts DIN 471: 150 × 4, 210 × 5, 220 × 5, 360 × 6; for bores DIN 472: 230 × 5 (spring steel)
- Dowel pins
- 6 m6 × 20 and 8 m6 × 20 per ISO 2338; 8 × 20 (S550GD); 10 × 33
Technical specifications
| Applicability | PEAB 4435 (V80/V90, 2 000 kW); PEAB 4456 (SWT-2.3, 2 300 kW); PZAB 3541 (SWT-3.6, 3 600 kW) |
|---|---|
| Slotted nuts | M165 × 3 (16MnCrS5); KM 26 and HM 3044 per DIN 981 |
| Retaining rings | for shafts DIN 471: 150 × 4, 210 × 5, 220 × 5, 360 × 6; for bores DIN 472: 230 × 5 (spring steel) |
| Dowel pins | 6 m6 × 20 and 8 m6 × 20 per ISO 2338; 8 × 20 (S550GD); 10 × 33 |
| Parallel key | 32 × 18 × 200 mm, DIN 6885 form AS, C45+C steel |
| Screws DIN 912 | M16 × 30, M16 × 50, M20 × 40, strength class 8.8 |
| Bolts DIN 933 | M10 × 20 (10.9), M20 × 35 and M20 × 40 (8.8) |
| Manufacturer numbers (selected) | 654704, 340826, 779141, 343350, 770716, 343361, 343362, 343138, 345103, 345117, 300502, 322213, 321604 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Slotted nuts tighten the inner rings of bearings and hubs on shafts. For the PEAB 4456 there is an M165 × 3 nut of 16MnCrS5 steel, and for the PEAB 4435 supports the KM 26 and HM 3044 nuts per DIN 981. Retaining rings per DIN 471 for shafts measure 150 × 4, 210 × 5, 220 × 5 and 360 × 6 mm, and for bores per DIN 472 there is 230 × 5 mm. Dowel pins 6 m6 × 20 and 8 m6 × 20 mm per ISO 2338, an 8 × 20 mm pin of S550GD steel and a 10 × 33 mm pin locate parts precisely relative to housing parts and covers. The 32 × 18 × 200 mm parallel key per DIN 6885 (form AS, C45+C steel) transmits torque in the high-speed shaft connection. Hexagon socket screws per DIN 912 measure M16 × 30, M16 × 50 and M20 × 40 of strength class 8.8, and hexagon head bolts per DIN 933 are M10 × 20 of class 10.9, M20 × 35 and M20 × 40 of class 8.8. They fasten bearing covers, end washers and holders. Number 654704 corresponds to the M165 × 3 slotted nut.
How to choose
First find out the gearbox type. The M165 × 3 nut belongs to the PEAB 4456, and the KM 26 and HM 3044 to the PEAB 4435 supports. Retaining rings are distinguished by fitting on a shaft (DIN 471) or in a bore (DIN 472). Order by the manufacturer number from the part card, stating the gearbox version and installation place.
Request a price and lead time
Fastening and locking parts of wind turbine gearboxes — slotted nuts, retaining rings, pins, keys, screws (DIN 471/472/912/933/981/6885, ISO 2338). We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which gearboxes are these fasteners intended for?
For the PEAB 4435 (V80/V90, 2 000 kW), PEAB 4456 (SWT-2.3, 2 300 kW) and PZAB 3541 (SWT-3.6, 3 600 kW).
Which slotted nuts are included in the item?
The M165 × 3 nut of 16MnCrS5 steel for the PEAB 4456, and also KM 26 and HM 3044 per DIN 981 for the PEAB 4435 supports.
What strength classes do the screws and bolts have?
DIN 912 screws M16 × 30, M16 × 50 and M20 × 40 have class 8.8. DIN 933 bolts M20 × 35 and M20 × 40 have 8.8, and M10 × 20 has 10.9.
How do DIN 471 and DIN 472 retaining rings differ?
DIN 471 are fitted on shafts, sizes 150 × 4, 210 × 5, 220 × 5 and 360 × 6 mm. DIN 472 are fitted in bores, with 230 × 5 mm available.
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