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Classification of ceramic bearings

Source: Bearing network time: 2013-11-22

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ǎ └咚僦岢 └咚僦岢 壕哂 壕哂 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( / high-speed spindle and other high-precision equipment,
.2), high temperature bearing: the data itself has a high temperature resistance of 1200 ° C; and self-smooth; the operating temperature does not occur between 100 ° C -800 ° C due to the temperature difference formed. Can be used in the furnace; plastic, system In high temperature equipment such as steel,
.3), corrosion-resistant bearings: the data itself has corrosion-resistant characteristics; can be used in strong acid, alkali, inorganic, organic salt, seawater and other fields; such as: electroplating equipment; electronic equipment; chemical machinery, shipbuilding, medical equipment, etc. .
.4), anti-magnetic bearing: because no magnetic does not absorb dust; can reduce bearing early fall off, noise, etc. can be used in demagnetization equipment. Fine instruments and other categories.
.5), electrically insulated bearings: due to high resistance; can avoid arc damage bearing; can be used in a variety of electrical equipment that requires insulation.
.6), vacuum bearing: due to the unique oil-free self-smoothing characteristics of ceramic materials; in ultra-high vacuum environment; can overcome the problem that the bearing can not complete the smoothness. Note: The above five kinds of bearings; the same set of bearings can be applied to High temperature, high speed, acid and alkali, magnetic field, non-insulation; but due to different data functions (please refer to the rare earth ceramic data function table), please choose the product when you choose the product; according to the occasions used by the individual; choose the most suitable ceramic material Bearing.
By data:
Zirconium oxide full ceramic bearing all ceramic bearing with anti-magnetic electrical insulation, wear and corrosion resistance, oil-free self-smooth, high temperature resistance and high cold resistance; can be used in extremely harsh environments and unique working conditions. The ferrule and the rolling body are made of zirconia ( ZrO2) ceramic material; the adherent uses polytetrafluoroethylene (PTFE) as the standard equipment; usually also can use glass fiber reinforced nylon 66 (RPA66-25); special engineering plastics (PEEK; PI); stainless steel (AISISUS316); yellow Copper (Cu), etc.
Silicon nitride all-ceramic bearing silicon nitride all-ceramic bearing rings and rollovers are made of silicon nitride (Si3N4) ceramic materials; adherents are made of polytetrafluoroethylene (PTFE) as standard equipment; usually also can use RPA66-25; PEEK ;PI; and phenolic cloth bakelite tube, etc. SiN4 full ceramic bearing compared to ZrO2 data can be applied to higher speed and load capacity; and suitable for higher ambient temperature. Together can provide high speed, high precision and high rigidity spindle Fine ceramic bearings; the highest production accuracy is P4 to UP.
Full-filled ball all-ceramic bearing full-ball type all-ceramic bearing with a ball gap on one side; because of the choice of non-stick frame layout design; can load more ceramic balls than the standard layout of the bearing; then improve its load; other can also Prevent the restraint of the data by the frame; reach the ceramics to maintain the corrosion resistance and temperature resistance of the all-ceramic bearing. This series of bearings is not suitable for higher speed; the device should pay attention to the notch surface at the end that does not accept the axial load.
Ceramics adhere to the all-ceramic bearing ceramics. The frame has the advantages of wear resistance, high strength, corrosion resistance and self-smoothness. The all-ceramic bearing made of ceramic adhering frame can be used for extremely strong corrosion, ultra-high temperature and high vacuum. Harsh environment. Common ceramic materials are ZrO2, Si3N4 or SiC.
Hybrid ceramic ball bearing ceramic ball is unique in that silicon nitride ball has low density, high hardness and low friction coefficient; wear resistance, self-smoothness and good rigidity; it is uniquely suitable for rolling high-speed, high-precision and long-life hybrid ceramic ball bearings. Body (the inner and outer rings are metal). Usually the inner and outer rings are made of bearing steel (GCr15) or stainless steel (AISI440C); ceramic balls can be selected with ZrO2; Si3N4; or SiC data.
By skill level:
.1), deep groove ball bearings (skill grade: P4, P5, P6, P0) deep groove ball bearings; the most representative roll bearing; widely used; can accept radial load and two-way axial load. High-speed rotation and low noise, low oscillation requirements or high temperature, cold, corrosion, magnetic field, non-insulation and other areas that steel bearings can not be used.
.2), the outer ring raceway of the self-aligning ball bearing self-aligning ball bearing is spherical; active centering; can compensate for errors caused by different degrees of heart and shaft deflection. It is used for the different center or axis deflection of the shaft and the outer casing. And the high-temperature, low-cold, corrosion, magnetic field non-insulation and other requirements of the alignment. Note: the inclination can not exceed 3 degrees.
.3), single-row angular touch ball bearings (skill grade: P4, P5, P6, P0) Angle touch bearings are suitable for high-speed and high-precision rotation; do not affect their accuracy in high temperature, magnetic field, water, etc.; The standard touch angle is 15°, 30° and 40°; the larger the touch angle, the greater the axial load; the smaller the touch angle, the radial load and the one-way axial load are accepted. Usually the paired device is adopted. Pay attention when purchasing.
.4), one-way thrust ball bearing one-way thrust ball bearing; is composed of a washer-shaped ferrule with a ball rolling raceway and an abutment frame assembled with a ball. It can accept axial load; but can not accept radial load.
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Crane Sole Plate

Crane Sole Plate is used under crane rail. The primary function of soleplates is to provide rails with a flat and smooth resting surface. Soleplates are used to support the rails in situations where concrete is not strong enough to support crane rails. Depending on the load and the type of rail, soleplates can be made continuous or individual.


Technical Parameters of Crane Sole Plate

Material: Mild steel

Chemical composition %:

C: 0.14-0.22, Si:0.3 max; Mn:0.3-0.65; P:0.05 max; S: 0.05 Max


Mechanical properties:

Tensile strength Yield point Hardness Elongation Proof load

Bolt ≥375Mpa ≥235Mpa ≥120HB ≥23% -


Reference project of Crane Sole Plate

1. Indonesia

Crane Sole Plate,Crane Rail Soleplate,Soleplate For Crane Rail,Crane Rail

TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com

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