Engine & Gearbox

Engine & Gearbox Bearings
Rexnord^®PSI^® bearings are used on:
     • Vane control actuation systems in the compressor
     • Gearbox mounts
     • Engine mounts and engine safety links
     • Air duct mounting turnbuckle assemblies
     • Air bleed control mechanisms
     • Thrust reverser and blocker door systems

Engine and Gearbox Nozzle Linkage Bearings
The linkage bearing design provides multiple pivot points within the assembly. PSI linkages are used extensively in the aerospace industry due to their:
     • Controlled clearance
     • Enhanced raceway (HVOF) for extended life
     • Excellent ball-to-race conformity
     • Broad choice of materials based on environment
     • Corrosion resistance

PSI offers turnkey solutions for “next level” assemblies.

Engine and Gearbox Lever Bearings
Engine levers are used in actuation and movements of van guides and other engine components. They are usually subjected to high vibration and dithering motion.

PSI bearings are a perferred choice of OEMs because of the following features that are ideal for bearings requiring high vibration and dithering motion:
     • Controlled clearance
     • Excellent ball-to-race conformity
     • Corrosion resistance
     • Broad choice of materials based on environment
     • Variable surface treatment options based on the application

Engine and Gearbox Tie Rods — Engine and Gearbox Thrust Reverser Bearings
Link bearings allow the use of two different pivot points using a precise dimensional distance between pivoting points. These linkages are usually subjected to high vibration and dithering motion.

PSI bearings are an ideal choice for OEMs because they offer the following features that are ideal for bearings requiring high vibration and dithering motion:
     • Controlled clearance
     • Excellent ball-to-race conformity
     • High stiffness
     • Corrosion resistance
     • Broad choice of materials based on environment
     • Variable surface treatment options based on the application

Typical attachment features include rod ends, introduced into threaded shafts, to allow for adjustability during installation.

Engine and Gearbox Mount Bearings
Mount designs are used to isolate radial motion to a concentrated part of the aircraft. These mounts are usually subjected to high vibration and dithering motion.

PSI bearings are chosen by OEMs because they offer the following features that are ideal for bearings requiring high vibration and dithering motion:
     • Controlled Ccearance
     • Excellent ball-to-race conformity
     • High stiffness
     • Corrosion resistance
     • Broad choice of materials based on environment
     • Variable surface treatment options based on the application

Engine and Gearbox Blocker Door Bearings
Blocker doors bearings are designed for the high-impact loads and corrosive environments that are encountered in commercial and military aircrafts, as well as re-entry spacecraft.

Generally, these products are manufactured to meet the following features:
     • High-load capacity
     • High stiffness
     • High vibration
     • Lower weight requirements.
     • Corrosion resistance

PSI’s slotted entry and split ball design configuration are an ideal choice because they improves stiffness and load carrying capacity while decreasing weight.

Nacelle Bearings
A "nacelle" is a separate streamlined enclosure on an aircraft use for sheltering the crew or cargo, or for housing an engine. Nacelle turnbuckle linkages are used where fine adjustment is required to preload the nacelle system and reduce vibration and noise. They are also used as vibration dampeners. They are usually subjected to high vibration and dithering motion.

PSI bearings are a perfect choice for OEMs because they offer the following features that make them ideal for bearings requiring high vibration and dithering motion:
     • Controlled clearance
     • Excellent ball-to-race conformity
     • Broad choice of materials based on environment
     • Variable surface treatment options based on the application
     • Integral design for weight and envelop reduction

Engine and Gearbox Duct Support Bearings
Duct support bearings are used to isolate and support ducts in engines. These bearings are usually subjected to high vibration and dithering motion.

PSI bearings are an excellent choice for OEMs because they offer the following features that make them ideal for bearings requiring high vibration and dithering motion:
     • Controlled clearance
     • Excellent ball -o-race conformity
     • High stiffness
     • Corrosion resistance
     • Broad choice of materials based on environment
     • Variable surface treatment options based on the application
     • Integral design for weight and envelop reduction

New Technology	Flight Control Actuators	Airframe Structures	Aircraft Doors	Landing Gear
Helicopters	Engine & Gearbox	Tooling	Industrial & Race Cars	Design Standards
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