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GCR15 cylindrical roller
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Source:
Release time:
2024-12-20
Material: GCR15 (Equal to AISI52001)
Hardness: HRC60-65
Out diameter & tolerance: 2.90±0.005mm
Length & tolerance: 1.30±0.03mm
Parallelism: 0.02mm
Perpendicularity: 0.02mm
Roughness: Ra0.16um
The rolling element is a radial rolling bearing of GCR15 cylindrical roller. The internal structure of GCR15 cylindrical roller bearing adopts the parallel arrangement of rollers, and spacers or spacers are installed between the rollers, which can prevent the inclination of the rollers or the friction between the rollers, and effectively prevent the increase of the rotation torque.
GCR15 cylindrical roller and raceway are line contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the retaining edge of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing has a separable structure with inner ring and outer ring.
GCR15 cylindrical roller bearings with no ribs on the inner or outer ring, the inner ring and outer ring can move relative to the axial direction, so it can be used as a free end bearing. GCR15 cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can bear a certain degree of axial load in one direction. Generally, stamping steel cages or solid cages made of copper alloy cars are used. However, there is also a part of the use of polyamide forming cage.
The roller and the raceway are in line contact or repaired offline contact, with large radial load capacity, suitable for bearing heavy loads and impact loads. The friction coefficient is small, suitable for high speed, and the limit speed is close to the deep groove ball bearing. The N type and NU type can move axially, can adapt to the change of the relative position of the shaft and the housing caused by thermal expansion or installation error, and can be used as a free end support. The processing requirements for the shaft or the seat hole are relatively high. After the GCR15 cylindrical roller bearing is installed, the relative deflection of the outer ring axis should be strictly controlled to avoid contact stress concentration. The inner ring or outer ring can be separated for easy installation and disassembly.
Cylindrical roller
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