Oust Bearings

The Only Bearing Engineered Specifically for Skateboards

After several years of research Oust Inc. has developed a hybrid skateboard bearing named the
" MOC SERIES".
These bearings meet all the critical factors for aggressive skateboarding. Unlike the common 608 bearings that are presently being used in the skateboarding industry which only require a radial load roll-out, OUST Inc. has designed a hybrid bearing which meet all the criteria for Static, Dynamic and Impact loads as well as bearing misalignment caused by torque.

These are side loads associated with carving, powerslides, pumping and technical skating. The OUST MOC  Series bearings are the FIRST and only bearing manufactured for skateboarding that achieve a matched coefficient of friction between radial load roll-out and tortional load roll  out.

There are four bearings designed for specific skateboarding, the MOC 5 Street, MOC 5 Tech, MOC 7 Speed, and the MOC 9 Airr.... All four have the same structural design but there are changes in the cage, seal, ball grade and finish. The MOC 9 Airr... has also been strengthened and reduced in weight. Specifically designed for maximum performance in Technical, Street, Vert and Slalom!

Tensor and Oust bearings are identical. They are probably the most advanced skateboard bearings ever made. These bearings were designed with 3 dimensional loads in mind. Most skateboard bearings are designed only to withstand vertical loads. But the truth of the matter is, your bearings break because of axial loads.

The designer of the Oust/Tensor bearing spent years understanding the loads on skateboard bearings. He also used skateboarding’s best tester: Rodney Mullen. Rodney Mullen blows out bearings like no one else. That is because Rodney does tricks that no one else does, putting the strangest loads on bearings.

The process was that the designer of this phenomenal bearing would come up with a “guess” design based on everything they knew about skateboard bearing loads. He would make the bearing and have Mullen ride it. Rodney Mullen would destroy the bearing; they would analyze the damage and determine what the causes of the bearing failure. They would re-design a new bearings, make it and have Rodney skate it again. After a bunch of tries, they finally made the ultimate bearing. It was called the Oust bearings. These tests carried out by Rodney Mullen were the inspiration for the Oust/Tensor Moc 5 Street and Moc 5 Tec bearings.

The next focus was to build bearings for speed. It is important to understand at this point that street and technical skaters skate a different speeds than vert and downhill slalom skateboarders. Therefore bearing design is going to be different. In street skating you need a more robust bearing that can handle axial loads better. For vert and slalom you need a bearing that can spin fast and withstand high heats of higher rpms.

This is when the fastest bearing (or fastest skateboard bearing) was designed. Oust/Tensor set out to make the Moc 7 Speed bearings and the Moc 9 Airs. This time they used the downhill slalom racer named “Chicken” to do the testing on the new bearing design. This Oust/Tensor Moc 9 Air bearings (which is only produced under the Oust name, Tensor stops at Moc 7) broke the downhill speed record for a human on a skateboard.

Oust MOC 5 Tech

The Oust MOC 5 Tech Bearing was designed for endurance in technical skateboarding. Some of the roughest conditions in skateboarding are reached during the ollie's, blunts, grinds, and tricks of technical skating.
To maximize the strength of the MOC 5 Tech bearing a high strength carbon steel ball cage was used. This cage would ensure ball placement in the harshest environments and extend bearing life for thousands of skating hours. The MOC 5 Tech bearing is manufactured with the same high precision specification as the MOC 7 Speed.

Oust MOC 5 Street

Street skateboarding is a combination of skateboarding is a combination of asphalt, steel and concrete interrupted by moments of fright, terror, and indecision. A special bearing had to be developed to accommodate a wide range of ages and styles of skating.

One that would hold together in any condition, without giving up speed or load capabilities of the MOC 5 Tech. The metal shields replaced the buna seals to reduce the possibility of damage to the buna seal during assembly .

A small oil hole ( Pat.Pend ) in each shield was put in so the bearing could be cleaned and oiled. Tolerances were changed to accommodate the new environment and the Oust MOC 5 Street was complete. It's the fastest and toughest bearing in the industry for street.

Oust MOC 7 Speed

The Oust MOC 7 Speed bearing was designed specifically for speed and manuverability under extreme skateboard conditions. After hundreds of hours of research on vert, technical, street and slalom, the problems and the needed solutions were realized.

A skateboard bearing had to be designed that would accept torsional loads caused by carving, pumping and four wheel slides and maintain its speed. The Oust MOC 7 Speed design is far beyond all of the other bearing designs in existence today including ceramic and mini bearing

Oust MOC 9 Airr...

Speed and cleanliness have always been two major issues in the Manufacturing process. The Moc 9 Airrr... addresses both issues. Manufactured with the highest quality USA made balls, finer polished raceways and a seal system that is different from all other methods of bearing seals in the bearing industry at the present time.
The Moc 9 Buna Non-Contact Seal is set into a U-channel design in the outer race and a stop on the inner race to keep all foreign particles out of the ball area. It also stops any oil leakage that might occur on a standard bearing seal. The Moc 9 design changes put the Airide a step ahead of all other bearings.