Thrust ball bearings

Product Description

NEWORLD thrust ball bearings are manufactured as single direction (fig. 1) or double direction (fig. 2) thrust ball bearings. They are designed to accommodate axial loads only and must not be subjected to any radial load.

Features and benefits

    ●  Separable and interchangeable

        The separable components of NEWORLD thrust ball bearings are interchangeable (fig. 3, fig. 4). This 

        facilitates mounting and dismounting, and maintenance inspections.

    ●  Initial misalignment

        Bearings with sphered housing washer(s) (fig. 5) can accommodate initial misalignment.

    ●  Interference fit

        Shaft washers have a ground bore to enable an interference fit. The bore of the housing washer 

        is turned and always larger than the shaft washer bore.

Performance Benefits:

   ●  Thrust ball bearings support axial loads in a single direction

   ●  Typically used within the differential

   ●  Custom designs available

   ●  Custom features include silicon nitride rollers and different ring materials

   ●  Different contact angles support limited radial loads

Bearing design

Designs and variants

Single direction thrust ball bearings

    ●  consist of a shaft washer, a housing washer and a ball and cage assembly ( fig. 6 )

    ●  can accommodate axial loads and locate a shaft axially, in one direction only

Double direction thrust ball bearings

    ●  consist of one shaft washer, two housing washers and two ball and cage assemblies ( fig 7 )

        The housing washers and ball and cage assemblies of double direction bearings are identical to 

        those used in single direction bearings.

    ●  can accommodate axial loads and locate a shaft axially, in both directions

Bearings with sphered housing washers

   ●  can accommodate initial misalignment

   ●  are available in both single (fig. 8 ) and double direction designs

   ●  can be used together with a sphered seat washer adjacent to the housing washer ( fig. 9 ) or adjacent 

       to a machine component manufactured with a sphered surface

Cages

Cages

NEWORLD thrust ball bearings are fitted with one of the cages shown in table 1.

Mounting

Temperature limits

The permissible operating temperature for thrust ball bearings can be limited by:

   ●  the dimensional stability of the bearing washers and balls

   ●  the cage

   ●  the seat washer(s)

   ●  the lubricant

Where temperatures outside the permissible range are expected, contact NEWORLD.

Bearing washers and balls

Depending on their size, washers and balls of SKF thrust ball bearings are heat stabilized up to:

   ●  125 °C (260 °F) where d ≤ 300 mm

   ●  150 °C (300 °F) where d > 300 mm

Cages

Steel and brass cages can be used at the same operating temperatures as the bearing washers and balls.

Seat washers

Seat washers are made of steel and can be used at the same operating temperatures as the bearing washers and balls.

Mounting

Where mounting a single direction thrust ball bearing, it is important to differentiate between the shaft washer and the housing washer. The bore of the shaft washer is ground and always smaller than the bore of the housing washer. The shaft washer should always be placed against a shaft step or fixed shaft component.

Application

Applications

Here are examples of applications in which thrust ball bearings might be used:

●   Blowers

●   Rotary compressors

●   Rotating tailstocks

●   Brake compensation devices 

●   Industrial fans

●   Industrial pumps

●   Metals

●   Industrial transmissions

●   Mining, mineral processing and cement