Needle roller bearings

Needle roller bearings
 

Product description:


Needle roller bearings are cylindrical roller with a roller bearing, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section, it has a higher load bearing capacity, Thus, especially suitable for the radial space-constrained applications.
Needle in the proximal surface contour of the face a little contraction. The results of needle roller and roller line contact may be amended to avoid damaging edge stresses.
In addition to catalogs listed, can be used for general engineering bearings, such as: open Needle roller bearings (1), closed Needle roller bearings (2), needle bearing inner ring (3) and does not have needle bearing inner ring (4), SKF can also supply all types of needle roller bearings, are: 1, needle roller cage assembly 2, needle roller bearings without ribs 3, self-aligning roller bearings 4, combination Needle roller / ball bearings 5, combined needle roller / axial ball bearings 6, combined needle roller / cylindrical roller thrust bearings
Needle roller bearings
Needle roller bearings with a thin needle roller bearings stamping outer ring. Its main characteristic is low sectional height and bear higher load capacity is mainly used for compact, inexpensive and not as a needle bearing inside the hole holding cage assembly bearing arrangement raceways. Bearing and bearing housing shall install an interference fit. If it can save me axial positioning shoulder, retaining ring, and other functions, NA me, bearing inside the hole can be made extremely simple and economical .
Mounted on the shaft end Needle roller bearings have a bilateral open (1) and unilateral closed (2) The closure of the proximal end face drawn cup can withstand small axial guiding force.
Needle roller bearings are generally not attached to the inner ring. Can not be hardened and ground occasion in the journal, you can use the inner listed in the table.
Needle roller bearings hardened steel outer ring and needle roller cage assemblies can not be separated. Lubricant storage free space can be extended relubrication intervals. Bearings generally use single design but wider specifications and bearing 1522162220302538 3038 All the single exception of the series, which is equipped with two needle roller cage assemblies bearing outer ring with lubrication hole. According to user needs, the shaft diameter greater than or equal to 7mm Needle roller bearings can be equipped with external lubrication holes rings (code suffix AS1).
Needle roller bearings with seals
The seal can not be installed due to space constraints of the occasion, can provide an open-ended or closed end Needle roller bearings with seals (3-5). Such bearing equipment polyurethane or synthetic rubber friction seal, which is filled with good anti-rust performance lithium-based grease for operating temperatures from -20 to + 100 ℃.
A seal bearing inner ring is wider than the outer ring 1mm, this is the bearing in the machine axis relative to the displacement of the bearing box with a little work but also to ensure good seal and prevent injury bearing contamination. Bearing inner ring has a lubrication hole, according to the bearing arrangement The need, from the outer or inner supplementary lubrication.
Needle roller bearings are divided into:
1. K Radial needle roller and cage assembly
2. NA, NKI-type needle roller bearings
3. RNA, NK-type needle roller bearings without inner ring
4. HK drawn cup needle roller bearings
5. BK drawn cup needle roller bearings
Needle roller bearings with a thin needle roller bearings stamping outer ring. Its main characteristic is low sectional height and bear higher load capacity is mainly used for compact, inexpensive and not as a needle bearing inside the hole holding cage assembly bearing arrangement raceways. Bearing and bearing housing shall install an interference fit. If it can save me axial positioning shoulder, retaining ring, and other functions, NA me, bearing inside the hole can be made extremely simple and economical .
Mounted on the shaft end Needle roller bearings have a bilateral open (1) and unilateral closed (2) The closure of the proximal end face drawn cup can withstand small axial guiding force.