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 Product List

Auto Bearings


Front Wheel Hub Bearings
  Rear Wheel Hub Bearings
 

Tensioner&Idler Bearings

 

Clutch Release Bearings

 

Wheel Hub Bearing(One Generation)

 

Wheel Hub Bearing( second generation)

 

Wheel Hub Bearing ABS System

 

Water Pump Bearing

 

Automotive Tapered Roller Bearings

 

Steering Wheel Bearings

 

Universal Joint Kits

    Automobile Center Support Bearing
  Steering Gear Box Bearings
  Special Non Standard Auto Bearing
  Automobile Alternator Bearing
  Automotive Air Condition Bearings

Industry Bearing


Deep Groove Ball Bearings
  Angular Contact Ball Bearing
 

Cylindrical Roller Bearings

 

Self-Aligning Ball Bearing

 

Spherical Roller Bearings

 

Tapered Roller Bearings

 

Bearing Units

 

Thrust Bearings

 

Needle Roller Bearings

 

Linear Bearings

 

Special Non Standard bearings

Power Transmission Parts


Ball leading Screw

 

Linear Motion Shaft

  Linear Guide Rail and Block Assemblies
  Precise Crossing Guide Rail

Auto Steering Gears


Worm and level Steering Gears

 

Rack and Pinion Type Steering Gears

 

Recirculating Ball Type Steering Gears


  Industry News

Ballscrew takes to the sky Federal-mogul blacksburg layoffs continue How to replace a steering gear Koyo cuts back at U.S. bearing rants
PI's M-122 palm-top-sized precision R.T. gilman new linear guide slides Schaeffler's generation C deep groove ball bearings
SKF ball screw and roller SKF long lead ball screws Special coated spherical roller bearings Steering conversions

A luxury cruise liner is using special coated spherical roller bearings from Schaeffler to help ensure the smooth, safe manoeuvring of the ship, while reducing vibration and noise levels.

The ship's propulsion and steering drives utilise one FAG radial spherical roller bearing and two FAG spherical thrust roller bearings, which enable the liner to accelerate to a speed of 24 knots (45km/h)

Schaeffler's bearings support the drive shaft on the locating bearing side in each of the two engine pods, accommodating thrust forces and loads from the engine and propeller.

Schaeffler's bearings support the drive shaft on the locating bearing side in each of the two engine pods, accommodating thrust forces and loads from the engine and propeller.

The bearings ensure that steering and precise deceleration manoeuvres are performed smoothly and safely.
Special coatings on the bearings are critical to the efficient operation of the drives.

Propulsion and steering of the ship are combined in a freely rotating vertical pod outside of the hull.

These so-called 'POD drives' provide low vibration and noise levels during operation, therefore enhancing passenger comfort.

The drives improve the manoeuvrability, and therefore the safety, of the ship, as well as offering higher efficiencies, resulting in both lower fuel consumption and reduced emission levels.

The power output per drive unit is 20MW.

Schaeffler's bearings support the drive shaft on the locating bearing side in each of the two engine pods, accommodating thrust forces and loads from the engine and propeller.

The large spherical thrust roller bearing, which has an outside diameter of 850mm, serves as the main thrust bearing and is subjected to thrust loads of up to 150 tonnes at maximum speeds of 135rev/min.

Under extreme conditions, the bearing can even support loads of up to 430 tonnes for short periods.

The smaller counter bearing, which is also an FAG spherical thrust roller bearing, has an outside diameter of 620mm.
The bearing withstands reverse thrust loads during manoeuvring operations.

The bearing is designed for loads of up to 20 tonnes, although in extreme cases, it can withstand loads of up to 200 tonnes for short periods.

The FAG radial spherical roller bearing, also supplied by Schaeffler, is designed to accommodate radial loads from the engine, the weight of the propeller and dynamic forces.

The bearings in the Schaeffler thrust block unit are arranged in such a way that they align via a common point and so are able to compensate for any misalignment of the drive shaft.

In order to optimise bearing system kinematics and reduce friction, the outer ring of the radial spherical roller bearing and the housing washers of the spherical thrust roller bearings are coated with Durotect Z.

Developed by Schaeffler, this special coating reduces the co-efficient of friction and adhesion properties, while increasing the bearing's resistance to corrosion and fretting.

In addition, the outer diameter of the 7.5 tonne thrust block unit (flange connection) is equipped with a 14mm-thick, synthetic compound coating, which offers good damping properties, as well as providing electrical insulation.

This coating prevents the rolling contact zone from being damaged by leakage currents or downdraft.

The coating provides reliable protection up to 15000V.

The thrust block unit's bearing and oil bath are monitored using temperature sensors.

The individual bearings are also fitted with a condition-monitoring system that detects damage at an early stage, enabling maintenance tasks to be planned well in advance.

This eliminates costly, unexpected bearing failures




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