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#Product Trends

LYC needle roller bearings/ ball bearings / slewing bearings

LYC needle roller bearings with small section dimension good rigidity and capacity of carrying high radial load is suitable to be used when radial install position limited .It is widely applied under the working situation with swinging shaft and bearing housing. However needle roller bearing can only carry pure radial load but cant prevent the axial displacement between shaft and bearing housing. In addition the angle error for inner axial and outer axial is not allowed.

LYC standard needle roller bearing is NA type which has flange or spring lock ring at the two sides of outer ring and a flangeless inner ring. There are two structures including single row and double rows. No matter single or double-row all could be produced into type NA with inner ring or type RNA without inner rings.

For big size there are circularity lubrication groove and hole on outer ring. Type NAs outer ring components (outer ring needle rollers and cage) are non-separated but if with inner ring it can be parted from outer parts.

If needle rollers without inner ring the rollers would directly contact with axial surface. In that way the hardness and dimension on axial neck must satisfy bearing raceways requirement.

Type NAV RNAV

Bearings of type NAV and RNAV are filled with rollers without cage. They’re another types derived from NA and RNA. Their loads carrying capacity is larger than type NA and RNA. But the rotating speed is lower than them. It is suitable to be used under rotating speed not high.

Type NAO

Type NAO has flangeless inner ring and outer ring with two structures as single row and double rows. They are divided into single row and double-row structures. For double-row needle roller bearing it has lubrication groove and hole on outer ring.

Type K

Type K also called “needle and cage assembly” without inner and outer ring is one kind of bearings with smallest radial dimension. It works directly on shaft surface and bearing house as their raceway. Therefore the matching shaft and bearing houses must have enough hardness and dimensional accuracy like raceway.

Cages

LYC needle roller bearings are supplied with a pressed steel cage a machined solid cage or glass fiber reinforced polyimide 66 and other engineering plastic. Cages of materials on are identified by suffix and its definition is explained in chapter of “LYC bearing designation”

Details

  • LYC Bearing Corporation

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