Plastic Bearing Roller: Hebei Naimei Bearing Co., Ltd. produces kinds of plastic bearing rollers,customized plastic roller, which are applied widely into Heavy Sliding Door Series, Hollow Doors to Wheel, Hollow Doors Last Round, Shift Door Series, Shift Door Last Round, Shift Door Next Round and other series. Plastic Rollers/ Pulleys in our company are rich in colors, exquisite in craft, like violin melodious music, with a variety of decorative intersection elegant melodies, allowing you to indulge in a variety of life changes among the wonderful scene. They are not only of competitive price, stable quality, but with strong after-sale service and dedicated staff attention. Please send your drawing or design, let's work together.
Hebei Naimei Bearing Co., Ltd. produces types of plastic bearing rollers:
1). Material: Carbon Steel/ Chrome Steel Bearing + Plastic( POM/ NYLON) Injection;
2). Application: for Aluminium Door and Windows; Aluminium Hardware Accessories and other sliding applications;
3). Plastic Color: Various, as per Request;
-- For any detailed inquiry of Non-Standard Bearing rollers, pls contact us freely. We will make a response within 12 hours.
Sliding Plastic Roller - Factory Direct Hot Sale
Bearing rings: Dimension tolerance, geometric tolerances, and surface quality of bearing` s working surface will influent the operating noise. Naimei Bearing adopts precision CNC machining to dimension precision, geometric tolerances, design drawing, mold making, grinding, cleaning, assembly, testing, every link of strict checks, so as to ensure all our products are tested by our strict criteria.
Balls: The balls evenly with by the cage, often make rolling movement between 2 rings. The shape, size and number will directly influent bearing`s load tolerance and operating capability. We use high precision, small vibration steel ball. It`s surface must be strengthened, no bumps scratches, lacerations, pitting and notch.
Cage: Enclose and move with all or part of the balls. It also be used to insulate the balls, guide the balls` movement and to improve lubrication performance inside the bearing., etc. Naimei Bearing`s cage is commonly made of cold rolling carbon steel. But in the corrosiveness environment, nonparallel or high-speed situation, stainless steel, engineering plastics cagecan be decided on request.
Seal: Naimei Bearing adopts different kind of seal material to meet the requirement of their operating in high temperature and being compatible with grease. Acrylonitrile-butadiene rubber is our standard material. but in high temperature environment ,often adopt fluorocarbons, silicone , PTFE shield.
Plastic Bearing Roller,Groove Plastic Roller,Convex Plastic Roller,Door Pulley Wheel Hebei Naimei Bearing Co., Ltd. , https://www.nmn-bearing.com
The improvement of gears improves the machining accuracy of the gears. The machining accuracy of the original high-speed gears is increased from 8 to 7 to ensure the accuracy and precision of the gears in the machining stage, improve the meshing accuracy and load capacity of the gears, and make the gears Smooth, reduce vibration and noise, and protect bearings. Thereby increasing the service life of the gears and bearings. The use of the displacement gear is limited by the diameter and width of the gear, and it is impossible to increase the strength of the gear by increasing the number of teeth, the modulus and the tooth width. In addition, the center distance deviation and the basic circle diameter of the FJ350 combined reducer high-speed gear are 10.8 mm larger than the root circle, which cause the tooth tooth registration and transmission stability to decrease. The displacement gear not only improves the strength and coincidence of the gear, but also eliminates the deviation of the center distance and obtains a reasonable tooth profile. For this purpose, the high-speed Herringbone gear is used to transmit the pinion displacement coefficient x=0.4, and the large gear displacement coefficient x=-0.4.
Improvement of gear material and application of laser quenching The original high-speed gear shaft has a short service life, and pitting and broken teeth often occur. In order to improve the comprehensive mechanical properties of the gear material, the original high-speed gear shaft material is made of cast steel 42CrMo and 34CrNi3Mo; in order to improve the contact strength of the tooth surface, the tooth surface quenching is adopted. The technical requirements of the heat treatment were modified to: After the quenching and tempering treatment, the finished car was sent to our factory for laser quenching. Required hardness: quenching and tempering HB280-300, tooth surface and tooth groove laser quenching HRC45-50. Laser quenching makes the gear deformation very little, and can reduce the tooth surface roughness without grinding teeth. More importantly: the hardness value and the gradient of the hardness of the quenching hardness can be controlled in the tooth profile and the depth of the layer. The quenching along the tooth groove causes the prestressing stress to be generated in the tooth root, which can offset the tooth root in the machining and use of the tooth. The tensile stress generated. Due to the use of the process, the tooth surface performance of the high speed gear shaft is improved, thereby improving the tooth surface contact fatigue strength and the root bending fatigue strength. 3 Conclusion Through the continuous implementation of the above measures, the average continuous use time of the FJ350 combined reducer has been increased by 5 times, and the FJ320 combined reducer has been increased by 4 times. Compared with previous years, the number of joint reducer replacements has decreased by 11 times. A total reduction of economic losses of 1.738 million yuan. The problems existing in the wire workshop FJ350 and FJ320 combined reducer, through effective measures, many problems have been solved, and satisfactory economic benefits have been obtained.
To improve the contact strength of the tooth surface, the tooth surface quenching