Ina Seals

INA Sealing rings are designed as contact seals. They protect the bearing position against contaminants, spray water and excessive loss of grease.

The sealing rings are matched to the small radial dimensions of drawn cup needle roller bearings and needle roller bearings. They are very easy to fit, since they are simply pressed into the housing bore.

Sealing rings allow circumferential speeds at the seal lip of up to 10 m/s, dependent on the surface quality of the shaft.

INA oil seals are used in a huge number of applications, from agricultural machinery, pumps and mining plants to electric motors, motorcycle forks and throughout the marine shipping industry. We make two main varieties of INA oil seals - nitrile single lip sealing rings, and polyurethane sealing rings with double lips.

All of our INA sealing rings are intended for use as contact elements, acting as a barrier between the bearing position and any contaminants or spray water. As they seal the bearing position, they also guard against excess loss of grease and lubricant from within. Our INA ring seals allow for high circumferential speeds approached 10 meters per second, dependant on the quality of the surface of the shaft.

Our selection of nitrile rubber IVA seals are tested for operating temperatures of -30c to 110c. The range offers compatibility with shaft diameters from 8mm up to 80mm, all of which are constructed with a steel reinforcement encased inside the nitrile rubber to help stiffen the ring, adding durability. This delivers excellent sealing properties and makes the ring even easier to fit.

The polyurethane elastomer sealing rings in our stock include two lips - one designed for contact, and the second as a non-contact dust shield facing the shaft. These are suitable for temperatures from -30c to 100c, and are offered for shaft diameters from 8mm to 50mm.

We have developed a range of INA seals.