Good quality needle roller bearing NA4017

Needle bearing (needle bearing) is a cylindrical roller with a roller bearing, relative to its diameter, the roller is thin and long. This roller is called a needle roller. Although the bearing has a small cross-section, the bearing still has a high load bearing capacity, the needle roller bearing with a thin and long roller (roller diameter D ≤ 5mm, L / D ≥ 2.5, L for the roller length), so Compact radial structure, its inner diameter and load capacity and other types of bearings the same, the smallest diameter, especially for radial installation of the size of the limited support results.

According to the use of different occasions, can be used without the inner ring bearing or needle roller and cage components, and then match the bearing surface and the surface of the casing hole directly as the bearing inner and outer rolling surface, in order to ensure the load capacity and operating performance As with a ferrule bearing, the hardness of the shaft or housing hole raceway surface, machining accuracy and surface quality should be similar to the raceway of the bearing ring. Such bearings can only withstand radial loads.

advantage:

1).Raw Material:specified high quality GCR15

2).Advanced digital turning, grinding machines and experienced workers guarantee the precision and quality.

3).QC:workers do three and check one of them,according to the operation card attached on the machine.

4).Automatic demagnetization,cleaning& anti-rust machine to ensure the cleanliness of the product .

5).Quality Control:QC inspect 4times/day at random , 100%full inspection before assembling &shiped.

6).Professional management system and team, tidy workshop environment to lead a good mood to every worker.

a. Auto wheel hub, Auto engine, Auto axle

b. Agricultural machinery, Rotary plow bearings, Tractor, Water pump, Oil engine harvester, Seeder, Tricycle, Farm vehicle, Cultivator

c.Engineering machinery, Excavator, Dozer, Paver, Loader, Hoisting machinery, Piling soil machinery

d. Steel mill machinery, Oil field machinery, Motorship machinery

e. Hardware tool, Electric power tool, Household appliance industry

f. Electronic toys, Fitness equipment, Building machinery

g. Series Of Pumps, Antiseptic Pump, Water pump, Submersible pump, Sewage pump

h. Motor bearings, Generator, Hydroelectric generator

i. Machinetool, Special purpose grinder, Precision lathe

j. Printing machinery, Woodworking Machinery, Textile Machinery

k. Locomotive bearing, wind power generation set, heat energy generation set, hydroelectric power generation set fields.