DRIVES AND FREQUENCY CONVERTERS
Seals of wind turbine gearboxes — NBR O-rings, V-rings, cord, felt strips, NILOS rings, flat gaskets
Country: Germany · Model: PEAB 4435 / PEAB 4456 / PZAB 3541
Sealing elements for wind turbine gearboxes PEAB 4435 (V80/V90, 2 000 kW), PEAB 4456 and PEAB 4456,5–4458,1 (SWT-2.3, 2 300 kW) and PZAB 3541 (SWT-3.6, 3 600 kW). NBR O-rings, a V-ring, cord, a felt strip, a NILOS ring and a flat gasket. They keep oil in the housing and protect the supports from moisture and dust.
- Applicability
- PEAB 4435 (V80/V90, 2 000 kW); PEAB 4456 and PEAB 4456,5–4458,1 (SWT-2.3, 2 300 kW); PZAB 3541 (SWT-3.6, 3 600 kW)
- O-rings
- 17.3 × 2.4; 24 × 3.5; 26.2 × 3; 40 × 3 mm, NBR (designation 72NBR872), factory standard W 5713
- Round cord
- Ø 5.0 mm, NBR 72NBR872
- V-ring
- V-150A for shaft 145–155 mm, Perbunan (NBR)
Technical specifications
| Applicability | PEAB 4435 (V80/V90, 2 000 kW); PEAB 4456 and PEAB 4456,5–4458,1 (SWT-2.3, 2 300 kW); PZAB 3541 (SWT-3.6, 3 600 kW) |
|---|---|
| O-rings | 17.3 × 2.4; 24 × 3.5; 26.2 × 3; 40 × 3 mm, NBR (designation 72NBR872), factory standard W 5713 |
| Round cord | Ø 5.0 mm, NBR 72NBR872 |
| V-ring | V-150A for shaft 145–155 mm, Perbunan (NBR) |
| Felt strip | 5.5/4 × 6.5 mm (F3312 F4) |
| NILOS ring | 6326 IV for bearing size 6326, steel |
| Flat gasket | 598 × 344 × 1.5 mm, material DILUFLEX (W 5087) |
| Manufacturer numbers | 306806, 306814, 306600, 306526, 307223, 775656, 243209, 651782, 342289 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The O-rings 17.3 × 2.4, 24 × 3.5, 26.2 × 3 and 40 × 3 mm and the cord of 5.0 mm diameter are made of nitrile butadiene rubber (designation 72NBR872, factory standard W 5713). The V-ring V-150A of Perbunan (NBR) for a shaft of 145–155 mm diameter protects the intermediate shaft support of the PZAB 3541 from contamination. The felt strip 5.5/4 × 6.5 mm (F3312 F4) goes into the labyrinth and dust seals of the high-speed shaft of the PEAB 4435. The steel NILOS ring 6326 IV covers the bearing of size 6326 on the generator side. The flat gasket 598 × 344 × 1.5 mm of DILUFLEX (W 5087) seals the housing joint of the PEAB 4456,5–4458,1. NBR is resistant to mineral and synthetic gear oils. When a support is dismantled most seals are replaced, so they are taken both in repair kits and individually. Number 306806 corresponds to the 17.3 × 2.4 mm ring, the other numbers are 306814, 306600, 306526, 307223, 775656, 243209, 651782 and 342289.
How to choose
Selection is led by the gearbox type, its version and installation place. The PEAB 4435 needs the 5.5/4 × 6.5 mm felt strip, the PZAB 3541 the V-ring V-150A, and the PEAB 4456,5–4458,1 the 598 × 344 × 1.5 mm gasket. The NILOS ring 6326 IV is fitted only under a bearing of size 6326. Dimensions and materials are taken from the gearbox documentation, and ordering is by the manufacturer number.
Request a price and lead time
Seals of wind turbine gearboxes — NBR O-rings, V-rings, cord, felt strips, NILOS rings, flat gaskets. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What material are the O-rings made of?
Of nitrile butadiene rubber NBR, designation 72NBR872, factory standard W 5713. Sizes 17.3 × 2.4, 24 × 3.5, 26.2 × 3 and 40 × 3 mm.
What is the V-150A V-ring for?
It is a face seal of Perbunan (NBR) for a shaft of 145–155 mm. It protects the intermediate shaft support of the PZAB 3541 from contamination.
What does the 598 × 344 × 1.5 mm flat gasket seal?
The housing joint of the gearbox PEAB 4456,5–4458,1. The material is DILUFLEX (W 5087).
Why are seals replaced after a support is dismantled?
Most of them cannot be reused after removal, so they are ordered in repair kits or individually, so that there are no oil leaks after the repair.
Similar products
TMdrive-10e2Low-voltage system VFD 460/575/690 V (including SPR and DP)
Perfect PitchElectric blade pitch systems for wind turbines 0.75–15 MW
FRENIC-MEGA (G2)General-purpose frequency converter 0.4–710 kW, 200/400 V
Commander / Unidrive M / Powerdrive MD Smart / DigistartLV frequency converters (Commander, Unidrive M, Powerdrive MD Smart) and Digistart D4/D5 soft startersREQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.