November 6, 2018
GGB drives excitement leading up to CTI symposium in Germany
Showcasing our solutions for transmissions, GGB will proudly participate in the CTI symposium in...
From February 18, 2019 to February 21, 2019
14th International Conference Innovative Seating 2019
From April 1, 2019 to April 5, 2019
Hannover Messe 2019
Visit us at Booth C28 in the Hall 22
Get in touch with our experts
Oil & Gas
Increase Service Life
Replace Roller Bearings
Reduce Size / Weight
Engineered Plastics Bearings
Fiber Reinforced Composite Bearings
Bushing Blocks and Thrust Plates
Metal and Bimetal Bearings
AT A GLANCE
Mounted on the engine crankshaft, isolator pulley dampers transmit torque to the rubber belt that drives the various engine accessories such as the alternator, the HVAC compressor and the oil and water pumps.
Out-of-balance forces generated by the pistons in the engine, particularly at low idling speeds, transmit asynchronous vibrations to the distribution belt which can ; be felt by the occupants in the car, create noise and reduce the service life of the belt.
To support the belt load applied to the pulley, to reduce NVH (Noise, Vibration and Harshness) and to increase belt life, isolator pulley dampers are fitted with DP11 metal polymer self-lubricating plain bushings.
The structure of DP11 self-lubricating bushings consists of a strong steel backing, to which is bonded a porous bronze sinter interlayer impregnated and overlaid with a PTFE enriched wear resistant bearing layer.
This highly resistant composite bearing structure can withstand specific loads of up to 250 MPa / 36 000 psi, sliding speeds up to 2.5 ms-1 / 500 fpm and temperatures up to 280°C / 536°F.
In isolator pulley damper applications, the excellent antifriction properties of DP11 self-lubricating bushings provide the following benefits:
Boot, Bonnet and Door Hinges
Gearbox Shifting Towers and Shifter Forks
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