bearings of a certain combination of size and series need ring-guided cages, to limit contact stress between rolling elements and cage.
How are bearing cages made?
Solid cages are made from brass, steel, light metal or textile-laminated phenolic resin. They are manu- factured either by machining, by injection moulding of plastic materials or by sintering metals.
What does the cage of a roller bearing do?
The cage of a rolling bearing, sometimes referred to as the retainer or separator, performs three basic functions; to space the rolling elements, retain the roiling elements itself or in conjunction with one of the bearing rings, and in many designs to guide the rolling elements on their correct rolling path.
What is the purpose of bearing cage?
The function of a bearing cage (also known as a separator or a retainer) is to hold rolling elements in proper orientation so they don't group together. Bearing cages are produced in a wide variety of materials and for a wide variety of manufacturing processes.
Which type of bearing do not need cage?
Radial ball bearings without a retainer (cage)
Why do we use brass cage in bearings?
Brass cages offer high rigidity, high strength and can be used at high temperatures. They also offer the key features of absorbing lubricant and performing well in aggressive environments where lubrication is marginal.19 jul 2012
What causes bearing cage failure?
Damage occurs to the bearing cage for different reasons, many associated with the handling and mounting of the bearings. Issues also occur due to vibration, inadequate lubrication, high temperatures, and large loads. To avoid a problem with the bearing cage, reduce vibration and mount the bearings as instructed.11 sept 2017
Do ball bearings need a cage?
Without the cage, the balls would eventually drift out of position during operation, causing the bearing to fail. The cage carries no load and serves only to maintain ball position.
How are bearings held in place?
A bearing holding pin holds against the inner ring outer diameter from the end side, and a collar from the inside is pressed against the inner ring outer diameter of the bearing from the other side to fix the bearing to the shaft.10 oct 2017
What is the advantage of a ball bearing without a retainer or cage?
Bearings without a retainer are called full complement bearings. This is because they have more balls which allows them to take heavier loads. They also cope with sudden shock loads (impact loads) as the increased number of balls distributes the load across the bearing raceway more effectively.
What is a cage retainer?
The ball bearing cage (also known as a ball bearing retainer or ball separator – these are used interchangeably), is the component in a ball bearing that separates the balls, maintains the balls symmetrical radial spacing, and in most cases, holds the bearings together.