The QCB Slewing ring range 

Slewing Bearings, Slewing Drives, Ring Gears and Pinions

QCB Slewing rings range in diameter from 100mm to more than 10 000 mm. QCB staff have many years of experience, backed by modern software to ensure you received the optimum solution for your needs and has quickly become a trusted name in the industry with a satisfied and international client base in industries as diverse as mining machinery, materials handling, offshore oil and gas, access platforms, process treatment plants, wind power, theatrical special effects and art installations.. 

As well as our own unique designs, we offer equivalents to other brands such as Torriani Gianni, La Leonessa, BRB Technologies, INA-FAG (now the Schaeffler Group), Roballo, Roth Erde, Rollix Defontaine, Avon, Taperex, Kaydon, Rossi-MRI, RKS, SKF, RIMA, IMO, Titanus, Silverthin, PSL, Drecon to name a few…

QCB has experience in the manufacture of  

      Single row ball bearings
      Double row ball bearings
      Crossed roller bearings
      Combination ball / roller bearings
      Triple row roller bearings
      Wire race bearings
      Precision rotary turntables
      Harmonic reducer bearings
      Ring gears
      Segmented bearings and ring gears
      Pinions
      Pinion shafts

Not only do we have an extensive catalogue reference library, and have developed an extensive interchange system.

Slewing Drives 

A slewing drive is an assembly comprising a slewing ring mounted on a base plate onto which a worm shaft or pinion is fixed which engages on the gear in the outer ring of the bearing. Hydraulic or electric motors can be used to provide rotation. 

Geared motors and pinions

Geared rings require some form of drive. Working in conjunction with leading manufacturers QCB offers turnkey solutions with matched pinions, electric or hydraulic geared motors (helical-bevel, worm or planetary style), servo-motors or air motors.

Precision bearings

For applications more demanding than average such as aerospace and robotics, QCB offers a range of high precision slewing rings and crossed roller bearings which are imported only a thorough understanding of the requirements.

Thin section bearings

So called “thin section bearings” exhibit a constant and relatively small cross section compared to their bore and are typically used where simplicity and weight reduction are the driving design factors.  QCB thin section bearings range from 1″ to 40″, with sealed and stainless steel options,