Y-Bearing

Y-bearings (insert bearings) are basically deep groove ball bearings sealed at both sides. They have a convex spherical diameter on the outer ring, and have an inner ring extended at one or both sides. When mounted in appropriate housings to form Y-bearing units, they compensate for initial alignment errors.

Y-bearing units are used in agricultural machinery, construction equipment, and conveyor systems, textile machines fans and beverage processing and packaging machinery. Four different methods are available to locate the bearing on the shaft:

Features of Y Bearings
Y-bearing units do not allow axial. The distance between bearing positions should be short, or the units should be attached to resilient sheet metal fabrications to prevent them from being subjected to excessive stress.

Types of Y Bearings

Bearings with Grub Screw Locking
Y-bearings with grub screw locking are held in position on the shaft by two grub screws directly in the inner ring extension. These Y-bearings are sealed at both sides. They have two lubrication holes in the outer ring as standard; if required, they may also be supplied without lubrication holes. These bearings may be stainless steel or zinc plated.

Bearings with Eccentric Locking Collar
These bearings are locked on to the shaft by means of an eccentric-locking collar fitted to the inner ring extension and secured by means of a grub screw. Bearings with eccentric locking collar should be used where the direction of rotation is constant. They have two lubrication holes in the outer ring.

Y-Bearings with Adapter Sleeve
Y-bearings with tapered bore mounted on adapter sleeves can be used where the direction of rotation may remain same or alternate. This allows the bearings to operate at higher speeds. The inner ring of the bearings extended at both sides and has a tapered bore. The bearings are sealed at both sides with two lubrication holes in the outer ring.

Y-bearings with standard inner ring
They have a standard-width inner ring. They are like sealed deep groove ball bearings except that the outer ring is spherical. They do not have lubrication holes in the outer ring.

Y Bearings Seals Since Y-bearings were developed for agricultural equipment and, much attention has been paid to their seals. Standard seals consist of a pressed steel washer with a synthetic rubber lip vulcanised to its inner surface. Washer forms a narrow gap with the cylindrical surface of the inner ring shoulder providing protection Plain flingers are used for harsh conditions. They have inner rings extended at both sides, can be fitted with plain steel flingers. These flingers enhance the sealing effect without increasing friction.

Rubberized flingers have a rubber lip vulcanized to the inside of the flinger, which seals axially against the integral seal. The space between the integral seal and the rubberized flinger is filled with grease. Pressed steel non-rubbing seals called shields form a sealing gap with the inner ring shoulders which excludes coarse solid contaminants. There is no contact and friction is at a minimum.

The seals and rubberized flingers are suitable for operating temperatures between -30 and +110 °C.

Tags:- Y Bearing Exporters, Y Bearings Wholesalers

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