Koyo Cylindrical Roller Bearings

JTEKT - KOYO - TOYODA Cylindrical Roller Bearings
Single-row, Double-row, Four-row
Cylindrical roller bearings have line contact between the rollers and raceway, therefore radial load capability is high, making this bearing superior regarding to its ability to withstand heavy loads and impact loads. Moreover, mounting and removing is easy due to the inner ring and outer ring being separable.

• The design allows linear contact of the cylindrical rollers with the raceway’s resolution in excellent radial load and impact load capacity.
• The rollers have a slight crown to relieve the ends and reduce stress concentration.
• The inner or outer rings can be separated, simplifying mounting and removal of the bearing.
• The N and NU type with flanges only on the outer or inner rings, allow for shaft movement and thermal expansion but will not carry axial load.
• Types NJ and NF have flanges on each end of the inner and outer races and a single flange on the inner or outer race to carry axial load in one direction.
• The NUP and NH use a loose rib and thrust collar on the inner race to allow some axial load capacity in both directions.
• Double row cylindrical like single row cylindrical, are available with either a separable inner or outer race.
• Cage types are pressed steel, machined copper alloy, and pin type.

Main Applications?

• Automotive: Internal combustion engines transmissions, and cargo transportation.
• Electrical: Large and medium sizes motors, traction motors and generators.
• Industrial: Gear boxes and machine tool spindles, steel mills.