What is a single row ball bearing?
Single row deep groove ball bearings are the most widely used roller bearing type in the world due to their versatility and overall performance. They are characterized by having deep raceway grooves in which the inner and outer rings have circular arcs of slightly larger radius than that of the balls.
What is a single direction bearing?
Single direction thrust ball bearings are able to accommodate axial thrust loads in one direction. They are not able to tolerate any amount of radial load. These bearings have a separable design to facilitate easy mounting, dismounting and bearing inspection. This also means that they are easily interchangeable.
What is 4 point contact ball bearing?
Four-point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio).
What is a QJ bearing?
Standard SKF four-point contact ball bearings – also called QJ bearings – consist of a single piece outer ring, a radially split inner ring, a ball set and an outer ring guided cage. The outer ring is similar to a deep groove ball bearing design, but the raceway geometry cross section is fairly different.
Where are single row ball bearing used?
Mostly used: oil pumps, air compressors, various transmissions, fuel injection pumps, printing machinery. Self-aligning ball bearings have two rows of steel balls, and the inner ring has two raceways. The outer ring raceways have an inner spherical shape and have automatic self-aligning performance.
What is single row angular contact ball bearing?
SKF single row angular contact ball bearings can accommodate axial loads in one direction only. This type of bearing is typically adjusted against a second bearing. Their bearing rings have an upper and a lower shoulder and are non-separable.
What are sliding contact bearings?
The sliding contact bearings in which the sliding action is along the circumference of a circle or an arc of a circle and carrying radial loads are known as journal or sleeve bearings. This type of bearing is commonly used in industrial machinery to accommodate bearing loads in any radial direction.
Are angular contact ball bearings with the inner ring divided into two?
This kind of bearing is divided into two types: separable bearing and inseparable bearing. The separable bearing is divided in two types: type S70000 and type SN70000 with inner and outer rings separable respectively. Single row angular contact ball bearings use generally metal solid cages.
What is a ball bearing?
A ball bearing is a type of rolling-element bearing that uses balls to maintain |races]]. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.
What is a four-point contact ball bearing outer ring?
A four-point contact ball bearing outer ring consists of two symmetrical raceways. Each of them has a circular shape. The two raceways intersect each other in the middle of the ring in form of a singular point. The raceways form is also called “Gothic arc.”
Why choose SKF four point contact ball bearings?
Therefore, it is an excellent choice in applications such as industrial gearboxes, locomotive drives and compressors. Standard SKF four-point contact ball bearings – also called QJ bearings – consist of a single piece outer ring, a radially split inner ring, a ball set and an outer ring guided cage.
What is a self-aligning ball bearing?
Self-aligning ball bearings, such as the Wingqvist bearing shown in the picture, are constructed with the inner ring and ball assembly contained within an outer ring that has a spherical raceway. This construction allows the bearing to tolerate a small angular misalignment resulting from shaft or housing deflections or improper mounting.