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The size classification of deep groove ball bearings
2021-03-09
According to the size of deep groove ball bearings, they can be divided into:(1) Miniature bearings-bearings with a nominal outer diameter range of 26mm or less;(2) Small bearings-bearings with a nominal&n... According to the size of deep groove ball bearings, they can be divided into:(1) Miniature bearings-bearings with a nominal outer diameter range of 26mm or less;(2) Small bearings-bearings with a nominal outer diameter range of 28-55mm;(3) Small and medium-sized bearings-bearings with a nominal outer diameter range of 60-115mm;(4) Medium and large bearings-bearings with a nominal outer diameter range of 120-190mm;(5) Large bearings-bearings with a nominal outer diameter range of 200-430mm;(6) Extra-large bearings-bearings with a nominal outer diameter range of 440mm or more. View Details
Precision angular contact ball bearings
2020-11-12
Precision angular contact ball bearingsPrecision angular contact ball bearings are widely used. The rolling elements of angular contact ball bearings are balls because it is a point contact (different from the linear contact of roller bearings), so it can provide higher speed, higher rotation accuracy and less heat. In some ultra-high-speed spindle... Precision angular contact ball bearingsPrecision angular contact ball bearings are widely used. The rolling elements of angular contact ball bearings are balls because it is a point contact (different from the linear contact of roller bearings), so it can provide higher speed, higher rotation accuracy and less heat. In some ultra-high-speed spindle applications, hybrid bearings with ceramic balls (usually si3N4 or Al203) will also be used. Compared with traditional fully hardened steel balls, the characteristics of ceramic ball materials endow ceramic ball bearings with high rigidity, high speed, high temperature resistance and long life, so as to meet the needs of high-end customers for machine tool bearing products.For the contact angle of angular contact ball bearings, the contact angles of 15 and 25 are currently popular; usually the contact angle of 15 has a relatively high speed performance, while the contact angle of 25 has high axial load carrying capacity. The choice of preload has a great influence on the application of precision angular contact ball bearings, such as for the applications of high load and high rigidity, medium or heavy bearing preload is generally selected; and for some high speed and high precision applications, it is necessary to pay attention to choose the appropriate preload. Preload is generally divided into three types: light, medium and heavy. Light preload is more common. In order to facilitate the use of customers, several major bearing manufacturers in the world generally provide pre-grinded bearing end faces and preloaded bearings, which is commonly known as universal matching precision angular contact ball bearings. This type of bearing eliminates the customer's preload adjustment, thereby saving installation time.https://www.zys-bearing.com/Bearings/ View Details
SPECIAL BEARING
2020-10-21
ZYS is committed to the design, research, development, production of bearings widely used in the fields of aerospace, machine tools, wind power generation, mine metallurgy, petrochemical, medical equipment, automobiles and rail transit, construction machinery bearing, motorcycle, house appliance, oil and gas. Any design of speciality bearing and no... ZYS is committed to the design, research, development, production of bearings widely used in the fields of aerospace, machine tools, wind power generation, mine metallurgy, petrochemical, medical equipment, automobiles and rail transit, construction machinery bearing, motorcycle, house appliance, oil and gas. Any design of speciality bearing and non-standard bearings can be achieved.https://www.zys-bearing.com/special-bearing/ View Details
Four point contact ball bearing
2020-10-21
The four-point contact ball bearing is the kind of bearing which can be separable. The 0000 type has a double semi-inner ring, and the OJ0000 type has a double semi-outer ring, and the contact angle is 35. When there is pure radial load or no load, the steel ball and the ring are in four-point contact; under the action of pure axial load, the stee... The four-point contact ball bearing is the kind of bearing which can be separable. The 0000 type has a double semi-inner ring, and the OJ0000 type has a double semi-outer ring, and the contact angle is 35. When there is pure radial load or no load, the steel ball and the ring are in four-point contact; under the action of pure axial load, the steel ball and the ring are in two-point contact and can withstand bidirectional axial load. This type of bearing can also withstand moment loads and combine the functions of single row and double row angular contact ball bearings. This kind of bearing can only guarantee normal operation when two-points contact is formed.https://www.zys-bearing.com/angular-contact-ball-bearing/four-point-contact-ball-bearings.html View Details
zys can offer special bearings standard bearings
2020-10-15
ZYS can offer various kinds of standard bearings, special bearings and OEM bearings, bearing parts, spindles, bearing testing machine, bearing grinding machine, bearing measuring instrument, bearing production line.A new generation of precision angular contact ball bearings have been developed by ZYS for the machine tool spindle. Comparing with gen... ZYS can offer various kinds of standard bearings, special bearings and OEM bearings, bearing parts, spindles, bearing testing machine, bearing grinding machine, bearing measuring instrument, bearing production line.A new generation of precision angular contact ball bearings have been developed by ZYS for the machine tool spindle. Comparing with general precision bearings, angular contact bearings are greatly improved in terms of rotation accuracy, limit speed, carrying capacity and reliability; and the size range is also wider. ZYS is able to produce 718 series, 719 series, 70 series and 72 series high speed bearings for machine tool, motor, spindle, power tool and can also develop new products for special application conditions according to customers' needs and provide services for customers.https://www.zys-bearing.com/single-row-angular-contact-ball-bearing/sealed-angular-contact-ball-bearing.html View Details
The fracture of bearing ring
2020-09-17
The common problem of bearing ring is fracture, one is defect fracture and the other is using fracture. Defect fracture is mainly caused by raw material problems and process problems. When raw&nb... The common problem of bearing ring is fracture, one is defect fracture and the other is using fracture. Defect fracture is mainly caused by raw material problems and process problems. When raw material inclusions, looseness, brittle element segregation or carbide liquefaction, mesh, ribbon, and unfortunately free uniform segregation and other defects appear in the processing process, they will cause stress concentration, weaken the basic strength of the ferrule, and become the source of cracks.For the research on the bearing ring fracture phenomenon, we must not only consider the defects generated in the material and the production process, but also study and analyze the structural dimensions of the bearing parts, the processing measurement methods, the processing technology, and the bearing life. View Details