Deep Groove Ball Bearings

Deep Groove Ball Bearings

      Bo Han deep groove ball bearings are non-separable type bearings. This bearing has a simple structure, work periods without regular maintenance, etc., and the price is relatively cheap. Is a very wide range of use radial bearings for high-speed operation of the working conditions of use.
Single row deep groove ball bearing inner and outer rings are deep groove raceway, deep groove raceway, with raceway and ball between the excellent adaptation, making the kind of bearing radial load at the same time, You can also bear certain axial load. When appropriate to increase the bearing radial clearance, the increased axial load capacity, sometimes used instead of high speed angular contact ball bearings.
Sealed bearings
Bo Han deep groove ball bearings with a variety of structural types, in addition to common open bearings, but also to provide customers with a dust cover-sided, double-sided with a dust cover, single-sided and double-sided with a ring with a ring The closed structure, as well as contact or non-contact (low friction) seal bearings. Seal according to the contact form is divided into contact and non-contact (low friction). Double-sided tape sealed bearings are filled with grease at the factory, usually bearing grease filling amount of available space within the 25% to 35%, if customers have special requirements can also be filled with other types of grease or adjust the fill level . Sides with a ring of the bearing during installation, do not wash or heating (heating oil can not be used) exceed 80 ℃, otherwise easily damage the bearings or cause grease deterioration and loss. With a ring bearing at an ambient temperature
-30 ℃ ~ +100 ℃ range to maintain proper performance.
The outer ring of the bearing with a groove
Brook can also provide outer ring with snap groove deep groove ball bearings, the bearing snap ring can be located, installed, it can easily be fixed bearing in the bearing sits. Therefore, in the installation location is limited, priority should be considered optional. According to the different characteristics of the bearing using the occasion of the dust cover, seal, groove and so many combinations can also be implemented after the design to provide the customers.
Low-noise bearings
In order to meet the customers bearing low noise (low vibration) special requirements, Bo Han can provide customers with different groups of vibration deep groove ball bearings, vibration group flag bearing basic code after the post code in the subject representation.
Bo Han customers can also provide other structural forms of deep groove ball bearings, deep groove ball bearings like insulation, ceramic deep groove ball bearings, stainless steel deep groove ball bearings and other products, the ball gap full deep groove ball bearings, etc. variety of products, but for some reason not included in the sample, if the customer needs, ask Bo Han technical department.
Brook New customers can also design and manufacture meet individual customer requirements other deep groove ball bearing type products.
Cage
Bo Han deep groove ball bearing cage mostly steel stamping Ribbon Cage, there are car manufacturing (steel or brass) solid cage, as well as glass fiber reinforced nylon 66 plastic cage.
Axial load carrying capacity
If deep groove ball bearings need to withstand pure axial load, under normal circumstances is exposed to pure axial load shall not exceed 0.5C0
. Small size bearings (diameter of less than about 12mm) and light series bearings (diameter series 8,9,0 and 1) shall not exceed the equivalent 0.25C0 withstand axial load. Excessive axial load may significantly reduce bearing life.
Minimum load
In order to ensure access to good running condition bearings, deep groove ball bearings with other ball bearings and roller bearings, must exert a certain amount of minimum load, especially for high-speed, high acceleration, or frequent changes in the load direction work under conditions . Because these working conditions, the ball and cage inertial force and friction within the lubricant will be rolling bearings, rotation accuracy of adverse effects, between the ball and the raceway may produce harmful sliding movement of the bearing.
Deep groove ball bearings required minimum load estimated using the following formula:
The formula:
     V-Operating temperature lubricant viscosity, mm2 / s
     n-speed, r / min
      dm - bearing mean diameter, dm = 0.5 (d + D), mm
      Kr - minimum load constant.
Bearing at low temperature start or the case of high viscosity of the lubricant, may require larger minimum load. Typically, the weight of the bearing support member itself with the load on the bearing, the load has exceeded the required minimum. If not yet reached the minimum load, the bearing must be subjected to an additional radial load to meet the minimum load requirements. In the deep groove ball bearing applications in general, by adjusting the relative axial position of inner and outer rings, or using a spring to apply an axial preload.
Dimensions, tolerances, clearance
       Bo Han standard deep groove ball bearings dimensions conform GB/T307.1 "Rolling bearings Radial bearings - Boundary dimensions, general plan," tolerances conform GB/T307.1 "Rolling bearings
Tolerances "clearance conform GB/T4604" Rolling radial clearance "and other requirements.
        Bo Han standard deep groove ball bearing size tolerance level generally P0 level (ordinary level), clearance by 0 group (basic group) manufacture, if the customer dimensions, tolerances, clearance when there are other special (including non-standard), Bo Han also provide corresponding products.
Equivalent dynamic load
        Deep groove ball bearing equivalent dynamic bearing load is exposed not only to the axial load and the ratio of basic static load rating, but also to different radial clearance will have an impact on the equivalent dynamic load, radial clearance increases, the shaft to the carrying capacity also increases. For under dynamic load deep groove ball bearings, the equivalent dynamic load can be calculated as follows:
When Fa / Fr ≤ e when P = Fr
            When Fa / Fr> e when P = XFr + YFa
The formula:
            P-equivalent dynamic load, N
            Fa-axial load, N
            Fr-radial load, N
            X - radial load factor
            Y-axial load factor
Equivalent static load
 For static load-bearing deep groove ball bearings, the equivalent dynamic load is calculated according to the following methods:
           Po = 0.6Fr + 0.5Fa
           When Po <Fr time, Po = Fr