Hub bearing unit seals for heavy duty and light vehicles
Wheel end sealing for hub units on everything from cars to tippers. These seals sit right behind the brake, take the full blast of road water and grit, and are the reason a hub unit reaches its design life or does not. SES holds the range as an authorised SKF distributor, covering applications Light vehicles through to heavy commercial axles; construction Cassette with rotating counterface, or integral to the unit; lips Primary oil or grease lip plus one or more exclusion lips; materials NBR, HNBR, FKM on steel cases. Executions include heavy duty cassette hub seals, light vehicle hub unit seals, encoder-integrated hub seals, multi-lip exclusion executions, among others. It is specified most often into haul truck and tipper wheel ends at a mine and trailer axles in long-distance fleets. Every part is genuine SKF through official channels, with designation, specification and options confirmed against your duty before it ships — supplied from Kolkata and our branch network, with breakdown cover that does not sit in an inbox.
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From integrated steel plants to power utilities and EPC majors — the works that cannot afford a counterfeit part specify through SES.
Position
Wheel end, inboard and outboard
Threats
Road salt, wash water, grit, brake dust
Forms
Cassette, integral, encoder-equipped
Heat
Conducted from the brake disc or drum
Where it runs.
You will find Hub bearing unit seals for heavy duty and light vehicles in the parts of a plant where this particular duty actually occurs. In practice that means haul truck and tipper wheel ends at a mine, trailer axles in long-distance fleets, transit mixer and bulker chassis, and equally light commercial vehicles in plant service, passenger vehicle hub replacements in a workshop, bus and coach front and rear hubs. What links them is the duty rather than the machine name — position: Wheel end, inboard and outboard. If your installation is not on that list it matters less than you would think: the operating condition decides the specification. Send us the load, the speed, the running temperature and the environment it runs in, and we will match it to the right execution in the SKF range and confirm what is in stock.
Specify it against the duty.
Specification here follows the operating condition, not the catalogue. The vehicle is a heavy tipper working on unmade haul roads — The heavy duty cassette execution with multiple exclusion lips. A light vehicle profile in that position is pulled apart by grit within one season. Wheel speed sensing is taken from the hub — The seal with the moulded magnetic encoder ring, at the correct pole count. Pole count is not interchangeable between axles. Brakes run hot on long descents — A compound rated for sustained heat soak. Grease that has been cooked once never recovers its consistency and the seal then runs on nothing. Where two of those apply at once, specify for the harsher of the two — under-specifying is what puts the part back on the bench a month later. Send us the duty and we will confirm the execution.
Ordering this from SES.
Press cassette seals in square using a driver that bears on the outer case only. Pressing on the inner ring cocks the counterface, and the seal will leak from day one even though nothing looks damaged.