Orkot Marine Bearings - Rudder Bearings and Water Lubricated Stern Tube Bearings

Orkot® Marine Bearings are world leading manufacturers and suppliers of bearings and materials to the shipping and general marine industries. Supported by an extensive global network of manufacturing plants and distributors, Orkot Marine Bearings are able to offer the highest levels of quality and service associated with a leading international company. Part of the Trelleborg group of companies, Orkot Marine Bearings have been active in the marine industry for over 25 years. We offer two specialist materials to this market, TLM Marine and TXM Marine.

Orkot TLM Marine is an advanced, reinforced polymer material incorporating solid lubricants. The material has exceptional wear resistance and virtually no swell in water, providing dimensional stability. Orkot TLM Marine tolerates edge loading and misalignment even with the heaviest loads.

Orkot TXM Marine is a development of our TLM Marine material using a unique manufacturing process that provides a high concentration of PTFE in the sliding area whilst maintaining high compressive strength. An added benefit is that the PTFE layer is several millimetres thick, thus making it tolerant to wear so that it keeps its low friction properties throughout the service life of the bearing. The PTFE layer is backed by our well-known polymer, Orkot TLM Marine, giving a truly homogeneous bearing material with no metal backing layer to cause problems.

In areas where the running conditions are predominantly dry, Orkot TXM Marine has proved particularly effective in eliminating stick-slip problems normally associated with these operating parameters. The specially formulated PTFE layer provides for similar mechanical properties to Orkot TLM Marine, with the major advantage of substantially reduced friction and wear characteristics.

ORKOT MARINE FOR BEARINGS, BUSHINGS AND OTHER MARINE APPLICATIONS

Orkot TLM and TXM Marine is used in a wide range of proven applications, including:

• Rudder bearings
• Water lubricated propeller shaft bearings
• Stabiliser bearings
• Weapons handling bearings and guide strips
• Deck machinery bearings
• Steering gear bearings
• Stern roller bearings
• Slipway pads
• Sonar bushings and guide strips
• Low magnetic permeability materials for mine counter measure vessels
• Door bushes
• Crane mast bearings

Orkot Marine Bearings are installed with an interference fit. Bearings are normally freeze fitted using liquid nitrogen, but can be press fitted or resin chocked as required. Where there are extended periods without lubrication, such as upper pintle bearings under light ballast conditions, Orkot TXM Marine proves particularly effective.

MATERIAL QUALITY AND CLASSIFICATION

ISO 9001 approval is held for all manufacturing operations and internal systems whilst in-house testing resources are used extensively to simulate the extreme operational environments where the material is used. Orkot is approved by all major marine classification societies including: Lloyds, DNV, ABS, GL, BV and NKK.

Orkot Marine Bearings - proven benefits:

• Extensive global stocks available
• 24h turnaround for non-stock sizes
• Classification approval for up to 15N/mm²
• Approved dry running capability
• Virtually no swell in water
• Low coefficient of friction
• Environmentally friendly - pollution free
• Tolerant to edge loading

SERVICE AND SUPPORT

Orkot Marine Bearings have a team of experienced and highly skilled engineers who offer a full and complete service tailored to your specific requirements. Some aspects of this service are: recommendations on adapting our bearings to specific environmental and operational conditions; calculation of correct bearing dimensions; technical assistance with bearing installations; full technical backup and support throughout the service life of the bearing; and 24h emergency support.

This service is complemented by a comprehensive range of technical documentation and the Orkot Marine Bearings calculation programme.

WORLDWIDE AVAILABILITY

Orkot TLM Marine stock tubes can be shipped same day via our extensive worldwide distribution network and stocks. Alternatively, we can manufacture specific sizes in both tube and sheet form within 24hs and can supply a full range of finish-machined products quickly and economically.