INA bearing classification one

INA deep groove ball bearings are mainly used to bear pure radial load, and can also bear radial load and axial load at the same time. When it is only subjected to pure radial load, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can bear a large axial load. The friction coefficient of deep groove ball bearings is very small, and the limit speed is also high. Especially in high-speed operation conditions with large axial load, deep groove ball bearings are more superior than thrust ball bearings. Deep groove ball bearings are the most representative rolling bearings and are widely used. It is suitable for high speed and even extremely high speed operation, and it is very durable and does not require frequent maintenance. This type of bearing has small friction coefficient, high limit speed, simple structure, low manufacturing cost and easy to achieve high manufacturing precision. The size range and form vary, and they are used in precision instruments, low-noise motors, automobiles, motorcycles and general machinery and other industries. They are the most widely used type of bearings in the machinery industry. It mainly bears radial load, and can also bear a certain amount of axial load.

When a larger radial clearance is selected, the axial bearing capacity increases, and the contact angle is zero when subjected to pure radial force. When there is an axial force, the contact angle is greater than zero. Generally, stamping wave-shaped cages, car-made solid cages, and sometimes nylon cages are used.

After the deep groove ball bearing is mounted on the shaft, within the axial clearance range of the bearing, the axial displacement of the shaft or the housing can be limited in two directions, so it can be axially positioned in both directions. In addition, this type of bearing also has a certain self-aligning ability. When it is inclined 2'~10' relative to the housing hole, it can still work normally, but it has a certain impact on the bearing life. Deep groove ball bearing cages are mostly steel stamping wave-shaped cages, and large-scale bearings mostly use car-made metal solid cages.

INA Angular Contact Ball Bearings

Angular contact ball bearings:
(Angular Contact Ball Bearings) can bear both radial and axial loads. Can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. High-precision and high-speed bearings typically have a 15-degree contact angle. Under the action of axial force, the contact angle will increase.

Single row angular contact ball bearings: machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts
Double row angular contact ball bearings: oil pumps, roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery

INA Cylindrical Roller Bearings
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs or not, it can be divided into single row bearings such as NU, NJ, NUP, N, NF, and double row bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated. Cylindrical roller bearings without ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage or a copper alloy turning cage is used. However, there are also part of the use of polyamide forming cage.

Cylindrical roller bearings are suitable for large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, reduction boxes, rolling mills, vibrating screens, and hoisting and transportation machinery. product features

The cylindrical roller is in line contact with the raceway and has a large radial load capacity.

Cylindrical roller bearings have higher bearing capacity after the improved design of raceway and rolling element geometry. The new structural design of ribs and roller end faces not only improves the axial bearing capacity of the bearing, but also improves the roller end face. The lubricating conditions in the contact area with the rib improve the performance of the bearing.

Such bearings are mainly used in medium and large electric motors, generators, internal combustion engines, gas turbines, machine tool spindles, reduction gears, loading and unloading machinery, and various industrial machinery.


INA bearing manufacturer
Bearings are the food for mechanical equipment and the driving force for its operation. Afken's sufficient spot inventory, effective inventory management system and fast transportation guarantee can facilitate the needs of customers to the greatest extent possible. The sales industries involve metallurgy, petrochemical, electric power, mining machinery, construction machinery, highway construction machinery, steel, railway, Printing, food, medicine, chemical industry and other fields.