Fasteners are the general term of the class of mechanical parts used in fastening two or more parts (or components) into a whole. It is widely used in energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic and other industries, at the same time, in various kinds of machinery, equipment, vehicles, ships, railway, bridge, construction, structure, tools, instruments, chemical, instruments and supplies, you can see all kinds of fasteners, is the most widely used mechanical foundation parts. It is characterized by a wide variety of variety specifications, different performance uses, and a very high degree of standardization, series, and generalization. Therefore, a class of fasteners that already have national standards is called standard fasteners, or simply standard ones.
1. General: Our company manufactures various kinds of slewing bearing for different applications, such as stacker reclaimed, lade turret, offshore crane, medical equipments, engineering machinery, mineral machinery, windmill, steel mill, etc. The types we produce include: Single-row four-point contact ball slewing bearing; Double-row four-point contact ball slewing bearing; Three-row cylindrical roller slewing bearing; Crossed cylindrical roller slewing bearing; Crossed taper roller slewing bearing; Ball and cylindrical roller slewing bearing 2. Bearing materials: Inner and outer rings: GCr15(SAE52100, 100Cr6), 45# (C45), 50Mn, 42CrMo(42CrMoV); Seal: NBR, VITON; Cage: Nylon, steel, brass, AL; Grease: Ca+ base, Li+ base grease (Such as Shell, Kluber, Chevlon etc. -- We can use the grease as per customer's instructions); Packaging: Plywood case, plywood pallet, iron pallet. 3. Documentations: We record the complete documentations for tractability. Raw material certification; Forging part certification; Heat treatment certification; Hardness values report; Ultrasonic testing; Rolling part (ball/ roller) certification; Seal physical and chemical testing; Cage certification; Process flow records; Final dimensional report. Blue band and wooden cases
Heavy Duty Needle Roller Bearings Detailed Product Description We provide various kinds of heavy duty needle roller bearings, pls kindly check following: NK SERIES SIZE: NK5/10TN~NK112/20 NKS SERIES SIZE: NKS14~NKS32 RNA 49 SERIES SIZE: RNA4900~RNA4924 RNA 69 SERIES SIZE: RNA6900~RNA6919 RNA 48 SERIES SIZE: RNA4800~RNA4828 NKI SERIES SIZE: NKI8~NKI100/30 NKIS SERIES SIZE: NKIS15~NKIS50 NA 49 SERIES SIZE: NA4900~NA4928 NA 69 SERIES SIZE: NA6900~NA6919 NA 48 SERIES SIZE: NA4800~NA4828 RNA49 RS SERIES SIZE: RNA4900 RS~RNA4910 RS RNA49 2RS SERIES SIZE: RNA4900 2RS~RNA4910 2RS NA49 RS SERIES SIZE: NA4900 RS~NA4910 RS NA49 2RS SERIES SIZE: NA4900 2RS~NA4910 2RS NAO SERIES SIZE: NAO6*17*10TN~NAO90*120*30 RNAO SERIES SIZE: RNAO5*10*8~RNAO100*120*30 RNAV SERIES SIZE: RNAV4002~RNAV4017 NAV SERIES SIZE: NAV4002~NAV4017. Industrial packing.
A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other. Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.
Bearings Our company mainly produces all kinds of bearings, power transmission products and more. Up to now, our products have been exported to not only japan, but many other countries and regions as well. These products have already been used by a lot of customers and have very good reputation. Now we supply low price but high quality products to you. We do believe that your request will be fulfilled and you will be absolutely satisfied. Depend on customer's request
Needle bearing
The cylindrical rollers have linear contact with the raceway and can carry heavier radial loads. These bearings can be applied in the conditions with heavy and shock loads. They have less friction and high rotational speed, the limited speed is next to the deep groove ball bearings. The n type and nu type bearings are movable along the shaft. They are able to adapt to the positional changes between the shaft and housing caused by the thermal expansion or the mounting error and are most suitable for free end shafts. It is quite demanding for the process of the shaft and the housing bore. After mounting, the relative skew ness of the outer ring axis should be tightly controlled in order to avoid the concentration of the contact stress. The inner ring and outer ring are separable and are convenient to mount and dismount.
Bearing Industry packing
Tianjin xiaochuan safety products co., ltd. Is a professional manufacture of working gloves with nearly 20 years production experiences. Our products including cotton knits gloves, pvc dotted gloves, latex gloves, nitrile gloves, etc. We keep a great control of product quality and insist in providing the best price and services to our customers. If you have interests in our gloves items and want to become our distributor, please feel free to contact us! we're looking forward to doing business with customers all around the world. Michelle tang
