Designed for maximum Performance
Features / Benefits:
- Offset cylinders - eliminate the cantilever forces inherent in rack & pinion actuators
- Roller support of racks - eliminates sliding friction and wear
- Twin rack rails - prevent over engagement of gear teeth
- Pressure balanced shaft -eliminates axial thrust, friction and wear common to rack & pinion designs
- Massive shaft bushings - shaft to body contact cannot occur
- Inward located springs - eliminates shaft seals & their possible failure on SR versions (a common cause of rack & Pinion actuator failure)
- Full size springs - prevent buckling
- Springs captured for safety - springs willl not extend during actuator disassembly
- QS series all SST (SST springs available)
- QD series - racks and shaft are SST
Design Details - QTRCO Rack & Gear actuators
Are these features truly beneficial?
One customer explained that the only problem he saw with our actuators is that "The design is too well thought out for our own good, you do not receive any parts business".
Another, after several years of trouble free service asked "Whatever caused you to design such a great product?"
Another, having hundreds of actuators installed for over 8 years with no failures jokes that "They will get one to fail someday". He is still waiting.
Still another has a difficult application on rig service boats that ply the Gulf of Mexico being splashed constantly with sea water. A number of boats are in service with a total of over 700 QTRCO Rack & Gear actuators with no failures and no required service after up to 8 years of service.
Summary, yes, the features truly do offer meaningful cost savings to users.