Tenmat Railko NF21
Tenmat Railko NF21 is part of the Tenmat range of high-performance composite (thermoset resin / fibre-reinforced) plain bearings and wear pads — non-metallic, self-lubricating and water-lubricated bearing materials. There is no direct water-lubricated equivalent in the Metafram sintered range; Railko NF21 addresses a duty (fully submerged, water-lubricated) that oil-impregnated Metafram BP25/FP20 and even dry composites are not intended for. It is best positioned alongside Bushingo's maintenance-free offering as the specialist water-lubricated option, complementing Metagliss on the structural/sliding side. Cross-refers directly to Thordon (marine water-lubricated bearings), Orkot marine grades and Vesconite.
Specification
| Brand | Tenmat |
|---|---|
| Series | Tenmat Railko NF21 |
| Material | Phenolic / thermoset resin-based composite bearing material optimised for water lubrication (non-metallic) |
| Forms | Cylindrical bush, Stern-tube / rudder bearing sleeve, Staved or segmented bearing, Turbine guide-bearing segment, Machined blank |
| Typical size range | From modest bushes to very large marine and turbine bearings of several hundred millimetres diameter, typically staved or segmented for the largest sizes (general guidance, dimensions engineered to order) |
Key features
- Water-lubricated operation — runs submerged with water as the lubricant
- Very low wear against stainless and coated shafts in wet service
- Corrosion-immune, non-metallic construction
- High load capacity with good resistance to abrasive contaminated water
- Environmentally clean — eliminates oil-lubrication pollution risk
Typical applications
- Ship rudder bearings and pintle bushes
- Stern-tube and shaft bearings
- Hydro turbine guide and wicket-gate bearings
- Water-control and sluice gate bearings
- Pump and submerged rotating equipment
Bushingo cross-reference
There is no direct water-lubricated equivalent in the Metafram sintered range; Railko NF21 addresses a duty (fully submerged, water-lubricated) that oil-impregnated Metafram BP25/FP20 and even dry composites are not intended for. It is best positioned alongside Bushingo's maintenance-free offering as the specialist water-lubricated option, complementing Metagliss on the structural/sliding side. Cross-refers directly to Thordon (marine water-lubricated bearings), Orkot marine grades and Vesconite.
See the full cross-reference table to match this to the Bushingo/Metafram range and other brands.
Request a quote for Tenmat Railko NF21
Send your bore/OD/length, load, speed and temperature — or a competitor part number — for a quoted equivalent.
Request a quote ↗