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Torque Transmission's Thrust Bearing design incorporates the optimum combination of molded nylon retainer, with hardened grade steel balls and washers. The self-lubricating property of nylon, combined with the hardened steel, high-grade balls reduces friction and the micro finish thrust washers reduce noise and increase durability.
We manufacture high quality thrust bearings in a wide range of sizes - standard, metric and custom dimensions - to meet your specific application.
High Quality Construction:
- Retainers are injection molded 6/6 nylon held to a rigid design criteria assuring consistent quality
- Hardened steel balls are grade 100 tolerance (±.0001", ±.0025mm)
- The thrust washers are hardened finished to micro 10
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races: unless indicated as being polypropylene or polyethylene, all races are acetal.
balls: all balls are carbon steel. Other ball grades may be available upon request.
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Thrust ball bearings are divided into single and double direction types. The former is able to accommodate axial load in one direction, while the latter is able to accommodate it in both directions. Neither is suitable for applications that involve radial load or high-speed rotation.
Bearings whose housing washer back face is spherical (with a spherical back face or aligning seat washer) are designed with a self-aligning capability and can accommodate the effects of inaccurate mounting.
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Thrust ball bearings are separable axial bearings:
- Available in single direction and double direction designs
- Suitable for relatively high axial loads
- Low to medium speed ratings
- Standards: DIN 616, DIN 711, DIN 715
- Series: 51100, 51200, 51300, 51400
- Application examples: vertical shafts, etc.
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Thrust ball bearings can handle axial loads only. Bearing rings mounted on the shaft are called shaft washers, and those mounted in the bearing housing are called housing washers. Both washers contain grooves for the balls. Thrust Ball bearings are of two types: single type which can support axial loads in only on direction and double type that can support bi-directional loads.
The central washer of double type thrust ball bearing is located in an axial direction by a shaft shoulder and sleeve. Thrust Ball bearings are not suitable for high-speed rotation since lubricant is expelled by centrifugal force. When used on a horizontal shaft, a minimum axial load must be applied. Pressed steel plate, polyamide resin, machined high-strength brass or mild steel are used for cages. Care must be taken in handling to prevent damage to the separable rings and ball assembly.
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Thrust ball bearings consist of a shaft washer,a housing washer and a ball and cage thrust assembly.Th bearings are separable so that mountingg is simple as the washers and the ball and cage assemble can be mounted separately.Thrust ball bearings ,as their name suggests,can accommodate axial loads in one direction and thus locate a shaft axially in one direction.They must not be subjected to any radial load.
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Bearings of this type consist of the washers with raceways and an assembly of ball and cage. The washer that contacts the shaft is called the shaft washer, and the one attached to the housing is called the housing washer. Thrust ball bearings are designed to accommodate thrust loads at moderate speeds, for practical purposes their radial load capacity is nil. The mounting is relatively simple as the washers and the ball and cage assembly can be mounted separately as Thrust ball bearings are separable.
Bearings with a sphered housing washer can be used together with a sphered seating washer to compensate for misalignment between the support surface in the housing and the shaft as it's important to keep the thrust bearings square with the shaft. However, the ability of the self-aligning seat to follow shaft wobble or misalignment's is still quite limited.
Double direction thrust ball bearings characteristics are identical to those of the one-directional bearing, except it can accommodate axial loads acting in both directions and can thus serve to axially locate a shaft in both directions. To prevent adverse influence of centrifugal forces and gyration moments the single and double direction thrust ball bearings must be constantly subjected to a specific minimum load.
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