How to select deep groove ball bearings according to application?
Deep groove ball bearings are the most commonly used type of rolling bearings. The raceway of the deep groove balls and the steel balls have excellent tightness so that the deep groove ball bearings can withstand radial loads and axial loads even under high-speed conditions.
The deep groove ball bearing has a small friction coefficient and a high limit speed. It is a product of a sealed structure and does not require relubrication and maintenance.
In addition to the basic types, deep groove ball bearings also have the following deformation structures: deep groove ball bearings with dust cover, deep groove ball bearings with rubber seals, deep groove ball bearings with retaining grooves, and ball-filling Mouth deep groove ball bearings, stainless steel deep groove ball bearings, double row deep groove ball bearings.
Deep groove ball bearing with dust cover
The dust cover is used to prevent the leakage of grease in the bearing. It is divided into two structures: single-sided and double-sided. Bearings with dust caps are difficult to lubricate alone, it is inconvenient to install the lubricating oil path and check the lubrication condition, and the low friction torque and high temperature are required.
The grease filling amount of each set of bearings is usually 1/4~1/3 of the effective space of the bearing cavity, and the amount of grease filling can also be increased or decreased according to user requirements. The injected grease can usually keep the bearing running at -40°C ~+120°C. If users have higher requirements for bearings, Yuanhe will provide satisfactory solutions.
Bearings with dust caps are greased and can work effectively for a long time, and do not need to be greased during use. Deep groove ball bearings with dust cover are mostly used at both ends of rotors of small and medium generators and motors, automobiles, tractors, air conditioners, fans, and occasions with special requirements for bearing noise and vibration.
Deep groove ball bearings with rubber seals
For deep groove ball bearings with sealing rings, there are contact and non-contact sealing forms, as well as single-sided and double-sided. The contact seals can be designed as light contact, medium contact, and heavy contact according to different parts of use.
The performance, filling, and application of bearings with seals are basically the same as those of deep groove ball bearings with dust cover. The difference is that the bearing with dust cover has a large gap between the dust cover and the inner ring, while the gap between the sealing ring and the inner ring of the non-contact sealed ball bearing is very small, and the sealing lip of the contact sealing ring bearing. There is no gap with the inner ring, and the sealing effect is good, but the friction is increased.
Where low noise is required, 60 and 62 series of small-size deep groove ball bearings are often used. Whether open or closed bearings (with a dust cover or with a sealing ring), low noise and low vibration requirements can be put forward when ordering.
Deep groove ball bearings with snap grooves and snap rings
The structure of the outer ring with a stop groove, a stop ring, and a flange can realize axial positioning. It also simplifies the installation structure of the housing. Deep groove ball bearings with snap grooves and snap rings are mostly used in working parts such as automobiles and tractors.
Deep groove ball bearings with filling gaps
The main dimensions of deep groove ball bearings with ball notches are the same as the 62 or 63 series of deep groove ball bearings. Both the inner and outer rings have ball gaps, so the number of steel balls is more than that of ordinary deep groove ball bearings, and the rated dynamic load is 20% to 35% larger.
Stainless Steel Deep Groove Ball Bearings
The material is stainless steel, which can resist the corrosion of moisture and other media, and is mainly used in anti-corrosion environments, the food industries, etc.
Double-row deep groove ball bearings
The design is very similar to the one-line product structure, but with only one line. In addition to radial loads, it can also withstand bidirectional axial loads.
Deep groove ball bearings can be divided into:
- Deep groove ball bearing (type 6000);
- Deep groove ball bearing (type 6000N), the outer ring has a retaining groove;
- Deep groove ball bearing (type 6000-ZN), with a dust cover on one side and a stop groove on the outer ring;
- Deep groove ball bearing (type 6000-2ZN), with the dust cover on both sides, and stop groove on the outer ring;
- Deep groove ball bearing with the dust cover on one side (type 6000Z);
- Deep groove ball bearing with the dust cover on both sides (type 6000-2Z);
- Deep groove ball bearing with a sealing ring on one side (type 6000-RZ);
- There are seals on both sides of the deep groove ball bearing (type 66000-2RZ);
- Deep groove ball bearing with flanged outer ring (type F6000);
- One side flange deep groove ball bearing with dust cover (F6000-Z type);
- Deep groove ball bearing (F6000-2Z type), with flanged outer ring on both sides, with dust cover.
Deep groove ball bearings are a type of rolling element bearing used in a variety of applications. These bearings can be differentiated according to their application and type selection. Application-specific models are designed for specific loads, speeds, and operating conditions, while general-purpose models can be used for a variety of applications.
When selecting a deep groove ball bearing, it is important to consider the specific application and operating conditions. If you have any technical questions, please contact us, and we will provide you with professional solutions!