27/3/2020 - Bearing configuration with compact structure
Drawn cup needle roller bearings are needle bearings with a thin stamped
outer ring. Its main feature is the low section height and high bearing
capacity. It is mainly used for bearing configuration with compact structure,
cheap price, and the inner hole of the bearing box cannot be used as the raceway
of the needle cage assembly. The bearings and bearing housings must be installed
in an interference fit. If axial positioning functions such as box shoulders and
retaining rings can be omitted, then the bore in the bearing box can be made
extremely simple and economical.
The drawn cup needle roller bearings mounted on the shaft end are open on
both sides and closed on one side.
Tapered roller bearings mainly bear radial load in the radial direction. For
example, radial bearings with this type of bearing contact angle of 45 degrees
are the same. They are the same. Because of ball bearings, roller bearings are
the same size and can bear Large radial pressure, N – Natural and NU cylindrical
roller bearings can withstand the radial load of radial bearings. Different
types can withstand radial loads. Axial load is rated at 45 ° or more. Angle of
long axis
When inspecting tapered roller bearings, we must not expose the bearings to
contaminated or humid environments. When work is interrupted, the bearings
should be covered with greased plastic sheet or similar material. If it is
necessary to clean the unshielded bearing without disassembling it, it is
necessary to clean it with a brush applied with petroleum solvent, and then wipe
it with a lint-free cloth or blow it with compressed air. The bearing assembly
starts to rotate). Do not clean bearings with sealed caps or dust, just wipe
Thrust roller bearings are used to support axial and radial combined loads
that are mainly axial loads, but the radial 6201
bearing load must not exceed 55% of the axial load. Compared with other
thrust roller bearings, this type of bearing has a lower friction coefficient,
higher speed, and has self-aligning performance. 29000 type bearing sticks are
asymmetric spherical rollers, which can reduce the relative sliding of rollers
and raceways during work, and have long rollers, large diameters, a large number
of rollers, high load capacity, usually oil lubrication. Individual low-speed
situations can be greased. When designing and selecting, it should be preferred;
80,000-thrust cylindrical roller bearings, 90,000-thrust tapered roller
bearings, and AXK-thrust needle roller bearings
|