Wind power bearing production process

Wind speed gearbox input shaft is generally 10-20 rev / min, due to the relatively low speed, causing the input shaft bearing is the planet carrier support bearing oil film formation is often more difficult. The role of bearing measurement bearing operation at the time of separating the two metal contact surfaces, avoid direct metal to metal contact occurs. We can introduce a parameter λ to characterize the bearing lubrication (λ is defined as the film thickness and roughness of the two contact surfaces and the ratio).
Wind turbine bearing production process:
1, to control the forging temperature, not coarse grains;
2, to control the modulation quality process to ensure that quenched their core part of the organization to ensure its mechanical properties;
3, IF quenching surface hardened layer depth control;
4, to avoid surface micro-cracks.

Tapered roller bearing structural features

taper roller bearing type code is 30000, tapered roller bearings for the separation of bearings. Under normal circumstances, especially in GB / T307.1-94 "Rolling bearings tolerance" within the cone are involved in the size range between roller bearing outer ring and inner components can be one hundred percent universal interchangeable.
The angle of the outer ring and the outer raceway diameter has been standardized with the same dimensions specified. Not allowed to change the design and manufacturing time. To cause between tapered roller bearing outer ring and inner components can be interchanged in common worldwide.
Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. Compared with the angular contact ball bearings, bearing capacity, low speed limit.Cross roller bearing can withstand axial load in one direction, a direction to limit the axial displacement of shaft or housing.

Tapered Roller Bearings definition

taper roller bearing are separable bearings, the inner and outer rings have a tapered raceway. This kind of bearing according to the number of columns loaded roller into single row, double row and four-row tapered roller bearings, such as different types of structures. Single row tapered roller bearings can bear radial load and axial load in one direction. When the bearing radial load, will produce an axial force component, so when you need another can withstand the axial force in the opposite direction of the bearing to be balanced. Ball bearing is a rolling bearing, ball ball mounted intermediate the inner and outer rims rims, able to withstand greater loads. Also known as ball bearing.

Ball bearings are mainly made up of four basic elements

Ball bearing is a rolling bearing, ball ball mounted intermediate the inner and outer rims rims, able to withstand greater loads. Also known as ball bearings.
Ball bearings are mainly made up of four basic elements: Ball (ball), the inner ring (inner ring), the outer ring (outer ring) and the holder, also called retainer (cage or retainer). General industrial use of ball bearings to meet the AISI standard, ball and ring 52100 is usually based on high-chromium steel, Rockwell hardness (Rockwell C- scale hardness) of between about 61-65. While maintaining the hardness of the ball and ring compared to low, the material with metal (such as: carbon steel, aluminum alloy) or non-metallic (eg: Teflon, PTEF, polymer materials). Ball bearing (ball bearing) than the Ceramic Ball Bearings (journal bearing) rotation friction is small, and therefore at the same speed, temperature and friction will be relatively low.

ZYS ball bearing installation method

A ZYS ball bearing installation method: press-fit: the bearing inner ring and the shaft so that a tight fit, the outer ring with the bearing hole is relatively loose fit, can be pressed press the bearing on the shaft, then the shaft along with bearing fitted together the bearing hole, when the pressure mounted on the inner end surface of the bearing pad material is made of a soft metal mounting sleeve (copper or soft steel), bearing outer ring with the bearing hole tight fit, the inner ring and the shaft is loose When fit, the bearing can be pressed into the bearing hole, then assemble the outer diameter of the sleeve seat should be slightly smaller than the diameter of the hole. If the bearing ring and the housing bore and shaft are a tight fit, installation of interior and outer ring To simultaneously pressed into the shaft and housing bore, the assembly casing shall be constructed simultaneously charging tight end face bearing inner and outer rings.
Two ZYS ball bearing installation method: heating with: by heating bearings or bearing, the use of thermal expansion close fit into a song with the installation method is a commonly used method of installation and labor-saving method is suitable for this large amount of interference bearing. installation, before loading the bearing or separable heat bearing rings into the tank uniform heating 80-100 ℃, then remove from the oil loaded onto the shaft as quickly as possible in order to prevent the cooling inner face and shoulder fit not tight, you can then fasten the rear bearing axial cooling when the bearing outer ring and light metal bearing tight fit, using heat bearing hot charging method, can be avoided with the surface by scratches. When the tank is heated by bearing a certain distance away from the bottom of the gate should have a net, or with a hook hanging bearings, can not be put on the bottom to prevent impurities entering the bearing Shen or uneven heating, the tank must have a thermometer, strict control of the oil temperature must not exceed 100 ℃, in order to prevent tempering effect, reduce the hardness of the rings.
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ZYS ball bearing properties

Deep groove ball bearing are most representative of the rolling bearing, widely used. For high speed or high speed operation, and very durable, without regular maintenance. This kind of bearing friction coefficient is small, extreme high speed, simple structure, low cost, easy to achieve high manufacturing precision. Size range and diverse, used in precision instruments, low noise motors, automobiles, motorcycles and general machinery industries, the machinery industry, the most widely used class of bearings. The main radial load, but also can withstand a certain amount of axial load.
Select a larger axial clearance radial load carrying capacity increase, when the contact angle of pure radial force is zero. When the axial force, the contact angle is greater than zero. Commonly used stamping Ribbon Cage, machined solid cage, sometimes with nylon frame.
sealed angular contact ball bearing installed in the shaft, the axial clearance in the bearing within the shaft or housing to limit the two directions of the axial displacement, it can be positioned in the bi-axial direction. In addition, the class also have some bearing self-aligning capability, when compared to shell hole tilt 2 'to 10', still work, but have a certain influence on bearing life. ZYS ball bearing cages are mostly steel stamping Ribbon Cage, a large multi-use vehicles bearing metal solid cage.
ZYS ball bearings are the most commonly used bearing. It's simple and easy to use. Mainly used to bear radial load, but increase the bearing radial clearance, with a certain angular contact ZYS ball bearing performance, can withstand radial and axial load. When should not be used in high speed and thrust ZYS ball bearings, it can also be used to bear pure axial load. With ZYS ball bearing specifications same size compared to other types of bearings, bearing friction coefficient is small, high speed limit. However, the impact of intolerance, not suitable to withstand heavy loads.

ZYS ball bearings

Super precision ball bearings are mainly made up of four basic elements: Ball (ball), the inner ring (inner ring), the outer ring (outer ring) and the holder also called retainer (cage or retainer). General industrial use of ZYS ball bearings to meet the AISI standard, ball and ring 52100 is usually high chromium steel, Rockwell hardness (Rockwell C- scale hardness) of between about 61-65. While maintaining the hardness of the ball and ring compared to low, the material with metal (such as: carbon steel, aluminum alloy) or non-metallic (eg: Teflon, PTEF, polymer materials). ZYS ball bearing (ZYS ball bearing) than the journal bearing (journal bearing) rotation friction is small, so the same speed, temperature will be relatively low friction Angular contact thrust ball bearing is a rolling bearing, ball ball mounted on inner and outer rims intermediate steel ring, can withstand a greater load. Also known as ZYS ball bearings.