Rulon®J Vs. Rulon®LR

Rulon gives unsurpassed performance:

• Self lubrication

• Low friction

• Extended operation and wear

• Low maintenance

• Flexible material design

• Dimensional stable in liquids

• Low weight/high strength ratio

• Chemically inert

• Operating temperatures of –400 to +500F

• PV ratings averaging 10,000 with P at 1000 psi and V at 4-500 fpm

• Available in machined stock or finished sleeve, flange or thrust bearings

Rulon J

Rulon J is a gold-colored material that excels with lower-abrasion and soft-mating surfaces. Rulon J is one of the original Rulon compounds, and uses a unique filler that adds temperature stability for improved wear. Shafts and bores made of aluminum, brass or stainless steel are unaffected by Rulon J, and it has a PV rating of 7500, which is lower than most types of Rulon. The material offers superior value combined with exceptional wear and friction properties.

Choose Rulon J for:

• Low maintenance

• Self-lubrication

• Lowest friction of all Rulon`s

• Compatible with soft mating surfaces

Rulon J in Agriculture

Challenge:

A leading supplier of agricultural harvesting equipment needed a long-lasting, caustic-resistant bearing for the conveyor belts and suspension cylinders aboard their boon lifts. The boons are mounted aboard trucks used to harvest produce, such as pineapples, in steep hillside terrain.

The bearings had to resist weather extremes, offer long life and low maintenance.

Solution:

Our team fabricated bearings made of Rulon J; a material prized for its low-abrasion and compliance with softer-mating surfaces. Rulon J is considered [shaft friendly" and outlasts other materials, even with start/stop applications where stick and slip must be eliminated.

Result:

Rulon J excels in harvesting because it can easily resist chemical substances, such as the sugar acidity in fruit. And because Rulon J bearings are self-lubricating and require no manual greasing or frequent changes, our partners report they have increased their efficiency and production rates.

Rulon LR

Rulon LR, (previously known as LD), is maroon colored and is considered the Go-To material for general-purpose bearing applications. LR is durable, dependable,and readily available. It uses a reinforcing ceramic filler that requires a minimum 35RC hardness. This filler gives LR unique dielectric and thermal properties for enhanced insulation. LR excels in high-pressure gaskets, slide pads, compressor components, dielectric insulators and some light-to-medium structural applications.For continuous, non-lubricated service, Rulon LR sleeve bearings are capable of

operating up to 10,000 PV, with even higher values possible with intermittent service.

Choose LR for:

• High temperatures

• Chemical resistance

• Minimal moisture absorption

• Low friction

Rulon LR in Military Defense

Challenge:

A military manufacturer partnered with TriStar for help in improving the recoil system on their 155mm Howitzer; a critical artillery cannon used by the Armed Forces of the United States.The original recoil design used bearings with a short lifespan, which required costly maintenance and upkeep; time that could not be wasted in the heat of battle.

Solution:

TriStar engineers developed an all-new sealing system for the hydro-pneumatic recoil unit used on the M198 towed unit and the M109 self-propelled unit. LR was an ideal material because of its extended wear and low maintenance.

Result:

Designing with Rulon LR, our engineers were able to improve the lifespan of the seals, while also reducing friction, and improving their abrasion-resistance qualities. With Rulon LR, our partner reports that the seals last longer, and respond better to the pressure and temperature fluctuations