Our company through the quality management system certification, adhere to science and technology, pay close attention to quality, look at the world and put our Cylindrical Roller Bearings NU208, Tapered Roller Bearing 30206, Ceramic Material One-way Bearing 489-K to the world. Adhering to our moto of 'Excellent Quality, Continuous Development, Continuous Improvement and Customer Satisfaction', we strive to maintain long term partnerships with our customers. Our common company philosophy and positive values bring us together and guide us in our daily work. Our company's staff will be in line with the 'continuous self-improvement, strive to be the pioneer of the industry, create first-class products' as the purpose.
NA6917-ZW is a needle bearing
main size: 85mm*120mm*63mm, dynamic load: 188000N,
static load: 400000N, limit speed: 4600 1/min,
reference speed: 2850 1/min, weight: 2200kg, axial displacement : 1mm
Needle roller bearings NA6917-ZW, dimension series 69, features: radial load,
without seals, grease lubrication, oil lubrication, compact design
NA6917-ZW bearing application range
Paper Machinery Injection Molding Machine Motorcycle Vacuum Pump and Compressor Sander Polisher Centerless
Grinder Crankshaft Grinder Planer
Needle bearings are important components in mechanical equipment.
Its main function is to support the mechanical torsion body to reduce the mechanical load friction coefficient of the equipment in the transmission
process. According to different load deflection or nominal contact angle, needle roller bearings are divided into radial needle roller bearings and
thrust bearings. According to the variety of rotating elements, they are: ball bearings and rolling bearings. According to whether the needle roller
bearings can be aligned, they can be self-aligning bearings and non-aligning bearings (rigid needle roller bearings). 
According to the number of rows of the rotating body, it is respectively: single-row needle roller bearings, double-row needle roller bearings
and multi-row needle roller bearings. According to whether the parts can be peeled off, they can be divided into: clutchable pressure plate
and non-clutchable bearing. In addition, it is classified and managed according to the layout characteristics, styles and dimensions.
What are the classifications of needle roller bearings?
1) Centripetal needle roller and cage assembly
2) RNA, NKI type needle roller bearings
3) RNA and NK needle roller bearings without inner ring
4) HK type drawn outer ring needle roller bearing
5) BK type drawn outer ring needle roller bearing
The drawn cup needle roller bearings installed on the shaft end have double-sided open type (1) and single-sided closed type (2). The base end face of the closed drawn outer ring can withstand low axial guiding forces.
We have further increased the manufacturing and sales of various new products, ensuring that our Hf0612 Hf0812 Hf2530 Hf3020 One Way Needle Roller Bearing is at an advanced level in the industry, and achieving the strategic goal of sustainable development. We have stable workshop production, high level sales team and the establishment of the whole industrial chain, highlighting the clear positioning of our business development strategy. The company adheres to the business policy of honesty, pragmatism, innovation and environmental protection, and constantly improves itself, creates value for customers and contributes to society.