How to install a plane thrust needle roller bearing loose ring
Butt welded pipe fittings are the most widely used pipe fittings. It is made of high-quality steel pipe and is formed by heating or pressing. Carbon steel pipe fittings are divided into carbon steel elbow, carbon steel tee, carbon steel cross, carbon steel reducer (large and small head), carbon steel head (cap) 5 series. The main implementation standards include GB, DIN, ASME, JIS, GOST. The biggest use of carbon steel pipe fittings is to connect pipes, Valves, pumps and other equipment to form a complete piping system. Steel Fitting,Stainless Steel Fittings,Ss Fittings,Stainless Fittings Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>How to install flat thrust needle roller bearing loose ring How to install a plane thrust needle roller bearing loose ring
The inner ring of the tight ring and the journal are in a transitional cooperation; when the shaft changes, the strand moves tightly; and it conflicts with the end face of the stop; when it is subjected to the axial effect force (Fx); the conflicting moment is greater than the inner diameter cooperative resistance torque; Inviting the tight ring and the shaft cooperation surface forced transformation; increasing the journal wear. Therefore; the thrust bearing device should pay attention to the following points. (1) Identify the tight ring and loose ring of the bearing (according to the inner diameter of the bearing; the hole diameter difference O.1 ~O.5mm). /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Planar thrust needle roller bearings are primarily subjected to axial loads in the assembly; they are widely used.
Although the operation of the thrust bearing device is relatively simple; however, there are often faults in the practice of repair; that is, the bearing ring and the loose ring device are not in the correct orientation; the result is that the bearing loses the effect; the journal is quickly worn out. The internet.
The inner ring of the tight ring and the journal are in a transitional cooperation; when the shaft changes, the strand moves tightly; and it conflicts with the end face of the stop; when it is subjected to the axial effect force (Fx); the conflicting moment is greater than the inner diameter cooperative resistance torque; Inviting the tight ring and the shaft to cooperate to force the transformation; increase the journal wear.
Therefore; the thrust bearing device should pay attention to the following points.
(1) Identify the tight ring and loose ring of the bearing (according to the inner diameter of the bearing; the hole diameter difference is O.
(2) Identify the stop pieces of the tissue (ie, the parts that do not attack the movement; the first refers to the assembly).
(3) No matter what the situation; the loose ring of the bearing should always rest on the end face of the stop.
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When using, the pipe fittings are evenly welded with the flange or directly with the pipeline, so that the entire pipeline is integrated and starts to work normally.
Pipe fittings are widely used in water, beverage, beer, food, petrochemical, nuclear power, machinery, medical equipment, fertilizer, shipbuilding, waterproofing and other pipeline systems. It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments. The tube cap is also the end cap on the pressure vessel, which is a main pressure-bearing component of the pressure vessel. The quality of the cap is directly related to the long-term safe and reliable operation of the pressure vessel.
Types of butt welded fittings:
According to the model can be divided into: ANSI B16.9 ANSI B16.28 JIS B2311SGP DIN 2605, DIN2615 DIN2616 DIN2617
According to the shape, it can be divided into: elbow, tee, cross,
Reducer (large and small head), head (cap)
According to the thickness can be divided into: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
According to the process, it can be divided into: stamping, pushing
According to the material can be divided into: carbon steel, stainless steel, alloy steel
1: Put the high-quality steel pipe, the raw materials according to the required size, and put it into the ring-shaped intermediate frequency furnace to heat and push to form or place it on the mold and extrude it by the press.
2: Pass the shaped elbow blank through the special CNC lathe for pipe fittings according to the drawing. Welding groove processing is performed on the two ends of the elbow blank, with a certain angle and a certain edge, and the angle and deviation range are strictly in accordance with the requirements of the drawings.
3: Put the elbow blank after shaping and beveling, and put it into the shot blasting machine for shot blasting on the surface of the pipe to remove the oxide skin on the inner and outer surfaces.
4: The finished pipe fittings are inspected according to the requirements of the drawings for the thickness and radius of curvature and straightness.
5: The pipe fittings that have passed the inspection will be typed on the end face according to the customer's requirements, and the pipe caps will be treated with anti-rust treatment according to the customer's requirements, and then put into wooden boxes or wooden pallets for transportation.
Standard for butt welded pipe fittings: ANSI B16.9 ANSI B16.28 JIS B2311 SGP DIN 2605, DIN2615 DIN2616 DIN2617
Thickness of pipe fittings: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
Size of butt welded fittings: 1/2"-48" (DN15-DN1200)