ZYS auto spare parts needle roller bearings NA type NA4901 used in automobile gearboxes
The needle bearing is roller bearing with a cylindrical roller, which is both thin and long with respect to its diameter. In spite of the smaller crosssection, the bearing still has a high load bearing capacity. The needle bearing is equipped with thin and long rollers (roller diameter D ≤ 5mm, L/D ≥ 2.5, L means the length of the roller), therefore its radial structure is compact. When the inner diameter size and load capacity are the same as those of other types, the outer diameter is the smallest, which is particularly suitable for a support structure in which the radial installation size is limited.Structure type
This type of bearing has a radial needle and thrust full of ball, or with a thrust ball, or with a thrust cylindrical roller, or with the angular contact ball into one, can withstand unidirectional or two way axial load. Can also be
designed according to the user's specific structural requirements.
Technical parameter of ZYS Drawn cup needle roller bearing:
Materials of Drawn cup needle roller bearing
Needle roller material for the GCr15 bearing steel, hardened HRC60-65.
Inside and outside the ring material for the GCr15 bearing steel, hardened HRC61-65.
The cage material is made of high quality mild steel or reinforced nylon.
Application of Drawn cup needle roller bearing
It is widely used in machine tools, metallurgical machinery, textile machinery and printing machinery and other machinery and equipment, and mechanical design can be more compact and smart.
ZYS MANUFACTURING CAPACITY
ZYS Quality assurance
ZYS bearing products
ZYS Packing :
Q: Are you trading company or manufacturer?
A: ZYS is bearing manufacturer, the only first-class comprehensive research institute in China bearing industry.
Q: How do you control quality of bearing?
A: ZYS has established quality control systems for each kind of bearing and spindle. All products and services passed ISO9001-2008 Quality Certificate.
Q: What is the MOQ?
A: It depends on the bearing type. You can send inquiry or send e-mail for more information.
Q: How about the package?
A: Industrial packing in general condition (Plastic tube+ carton+ pallet). Accept design package when OEM.
Q: How long is the delivery time?
A: It will take about 10 to 40 days, depends on the model and quantity.
Q: How about the shipping?
A: We can arrange the shipment or you may have the forwarder.
Q: Is sample avaiable?
A: Yes, sample order is acceptable.
Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable. We can design the bearing with your requirements and use your own LOGO and package design.