Specifications of TIMKEN Bearing 61812-2RZ-C3
TIMKEN Bearing 61812-2RZ-C3
Category: TIMKEN Bearing > Ball Bearing > Deep Groove Ball Bearings > Thin Section Ball Bearings (61800, 61900)
Timken’s deep groove ball bearings deliver reliable performance in a wide range of applications and conditions. With super-finished raceways and controlled geometries, our premium design helps ensure consistent quality.
d= 60 mm, D= 78 mm, B= 10 mm,
Material: Bearing steels
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Product description of TIMKEN Bearing 61812-2RZ-C3
TIMKEN Bearing 61812-2RZ-C3, TIMKEN Bearing > Ball Bearing > Deep Groove Ball Bearings > Thin Section TIMKEN Bearing 61812-2RZ-C3.Bearings should be made to the most precise
geometric tolerances possible. Timken Thin Section TIMKEN Bearing 61812-2RZ-C3,The bearings should be pre-loaded to overcome the minor surface imperfections of the balls and raceways. They should also be part of a cartridge incorporating the housing and shaft.
Bearings were made as part of the cartridge assembly and all angular measurements for accuracy were made relative to the housing and shaft. Bearings were pre-loaded and spaced axially to
help overcome geometric in inaccuracies of the bearing, The bearing raceways and balls were made from consumable electrode vacuum
melted AISI 440C material. As the bearings had to operate in a vacuum, the separator material necessitated a special open weave phenolic material impregnated with a special silicone oil. To prevent migration of the oil from the
cartridge assembly, the labyrinth seal was coated with a barrier film.
Timken Thin Section TIMKEN Bearing 61812-2RZ-C3, The bearing housing was designed to incorporate the outer raceway of the roller bearing and the outer raceway of the split inner race ball bearing. In order to increase the reliability of the riling contact surfaces in the
housing, the housing was manufactured from AISI M-50material consumable electrode vacuum melted. The gear was made integral with the shaft which also contained the inner raceway of the roller bearing. The gear shaft was manufactured from consumable electrode vacuum melted AlSI-9310 material; case hardened to Rc 61-64 on the gear tooth surface and in the roller bearing raceway.In order to facilitate lubrication of the bearings in the
restricted area, lubrication holes were drilled through the housing into the space between the two bearings.
The lubrication was fed through these holes from an annular groove in the housing.
The two halves of the split inner race were retained to the gear shaft by the use of a lock nut, clamping the
races axially. The combined integral assembly of bearings,gear shaft and housing provided the desired space and weight reduction and gained improved operational
accuracy. In addition, it afforded easier installation into the gear box.
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