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Roller Bearings Line Contact Bearing
Jun 27, 2017

Roller Bearings Line contact bearing

Cylindrical roller bearings

Cylindrical roller with raceway for wire contact bearing. Load capacity, mainly bear radial load. Roller and ferrule friction small, suitable for high-speed rotation. N15, NUP, N, NF and other single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearings. The bearing is the inner ring, the outer ring can be separated from the structure.

Inner or outer ring without ribs cylindrical roller bearings, the inner and outer ring can be relative to the axial movement, it can be used as a free end bearing. In the inner ring and outer ring on one side of a double ribs, the other side of the ring with a single ribbed cylindrical roller bearings, can withstand a certain degree of axial load in one direction. The general use of steel stamping cage, or copper alloy car body solid cage. But also part of the use of polyamide forming cage.

Bearing characteristics

1. Roller and raceway for line contact or repair off-line contact, radial carrying capacity, suitable for heavy load and impact load.

2. Friction coefficient is small, suitable for high speed, limit speed close to deep groove ball bearings.

3. N-type and NU-type axial movement, can be adapted to thermal expansion or installation error caused by the relative position of the shaft and the shell changes can be used for free end support.

4. The shaft or seat hole processing requirements are higher, the bearing after the installation of the outer axis of the relative deflection to be strictly controlled, so as to avoid contact stress concentration.

5. The inner or outer ring can be separated, easy to install and disassemble.

product features

Cylindrical roller and raceway line contact, radial load capacity. Both for heavy load and impact load, but also for high-speed rotation.

Cylindrical roller bearing raceway and rolling body was geometric shape. After improved design, the new structure design with high carrying capacity, rib and roller end face not only improves the axial bearing capacity of the bearing, but also improves the lubrication condition of the contact surface of the roller end face and the rib Bearing the use of performance.

Structural classification editing

Structure type

1. Outer ring without ribs N0000 type and inner ring without ribs NU0000 type, cylindrical roller bearings This kind of bearing can accept the larger radial load, the limit speed is high, does not bind shaft or shell axial displacement, can not accept the axial Load.

2. NJ0000 type, NF0000 type bearings can be bound shaft or shell in one direction of the axial displacement, and can accept a smaller one-way axial load. NU0000 + HJ0000 type, NJ0000 + HJ0000 type, NUP0000 type bearings, axial bearings in the field of bearings within the bound axis or shell axial displacement in both directions, and can accept a smaller bidirectional axial load.


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