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TIMKEN bearing mounting surface and tie in to the part surface, such as scratches, corrosion layers, grinding dust, grit, dust, and soil, a bearing installation difficulties, resulting in incorrect Assembly position; the second is the attachment formation of abrasive, easy clean bearing surface loss, affecting the quality of Assembly. Therefore, installing the front axle, bearing shell hole surface, face, shoulder and connecting parts such as bushings, washers, end caps of mating surfaces, a careful inspection. If there is corrosion, smooth file available file off, sand cloth polishing, as well as to clear the surface of the bearing Assembly and its attachments on connected parts.
TIMKEN bearings often work in high-temperature, reduces the strength of bearing; bulldozers frequently overworked bearing considerable axial impact of frequent, balls and raceways caused by severe plastic deformation and damage cause early wear of the bearing would lubricants are not clean. For these reasons it comes down to is overuse and improper maintenance of the actions on the bulldozer, displacing the bearing working long hours in harsh conditions, various adverse impacts simultaneously on a bearing, causing damage to the individual bearing early. For the hydraulic torque converter failure rate down to zero, on installation technology of bearing in the design, manufacture, use and multifaceted has established special requirements.
The mechanical stress on the cage from friction, strain and inertia forces, as well as by certain lubricants and its aging building, organic impurities such as chemical erosion, so cage material choice greatly influenced on the running reliability of bearings. Due to the TIMKEN bearings at higher working temperatures, cannot take the phenol aldehyde laminated cloth or nylon cage of solid cage, considerable axial impact loading and frequent, so we use brass solid cage bearings. (Post code m for solid cage of brass). Due to the bearing inner and outer cylinder raceways on both sides of the shaft diameter structure, leaving cage space is unlikely. Such as the use of inner ring guided by cage, cage the thickness of thin, to enhance the strength of the cage, cage designed for cages of ball guide cone desktop. General bearing Raceway on sound is sound with other sounds. Ball bearing Raceway is irregular, frequencies above 1000Hz, the frequency rate does not change with the speed of it, but its sound pressure level increases with acceleration of the speed of. Raceways of bearings sound, its acoustic sound pressure level rolling road with the increase and decrease of viscosity and raceways of bearings sound small, their sound pressure level in the viscosity increases to about 20mm2/s above, by a reduction to increase. Greater the rigid housings, rolling road, lower the overall sound pressure level of sound. Such as the radial clearance is too small, rolling road sound of a sound pressure level and main frequency will increase sharply as the reduction in radial internal clearance. Control of Raceway acoustic methods are: selection of low noise bearings which small waviness TIMKEN bearings, carefully select the use conditions. Rolling road sound often affects the entire mechanical noise, Raceway reduction can reduce the noise of machinery as a whole.
When you are selecting bearings, in General, considered as shaft bearing arrangement, by the degree of difficulty of installing, removing, bearing the space allowed, size and market of bearing, as generally determines the structure bearing. Second, the comparative study using the side bearing design of a variety of mechanical life and bearing a variety of endurance running, while decisions bearing size. When you are selecting bearings, often biased only bearing fatigue life, about from aging of grease and the grease life, wear and tear, noise, need to be fully studied. Furthermore, according to different purposes, it is necessary to select the precision, clearance, cage structure, grease, and so on request, subject to special design bearings. However, select TIMKEN bearings and do not have a certain degree of order, rules, priority should be given to bearing the required conditions, performance, most related matters, is especially actual.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| RNA4828 NSK | 155 | 175 | 35 |
| RNA4826 NSK | 145 | 165 | 35 |