Rollers have been designed the same way for decades. Materials may have changed slightly but the design flaws are still built in. i.e.

Rapidly wearing contact seals, rotating end caps to seize, welded-in end caps to wear away, non-concentric welding, poor bearing support and premature bearing failure.

The new KEY roller was designed to alleviate all of the above faults to give long life, lower production costs, and hence greater cost savings for the customer. This unique and patented design incorporates:

1. Triple seals: Expellor ring, high tolerance labyrinth, and pre-sealed bearing.
2. Stationary end discs to reduce pegging problems.
3. No welds anywhere in construction = No welds to fail.
4. Precision moulded components are tough, light, and concentric.
5. Bearings loaded centrally with better support for longer life.
6. Non contact seals for free running to reduce power requirements.
7. Polymer components absorb noise for quieter running.

Quieter, long lasting, free running = lower maintenance and reduced production costs.