Short needle roller

Category:

Short small cylindrical rollers

Keywords:

Short needle roller

Generally speaking, 33.3% of short needle rollers are damaged due to fatigue damage, 33.3% of short needle rollers are due to poor lubrication, and 33.3% are due to contaminants entering the bearing or improper equipment disposal.

Main parameter
Similar Specification
Main uses

- Commodity name: Short needle roller
- Out diameter & tolerance: 4.686±0.005mm
- Length & tolerance: 2.00±0.03mm
Generally speaking, 33.3% of short needle rollers are damaged due to fatigue damage, 33.3% of short needle rollers are due to poor lubrication, and 33.3% are due to contaminants entering the bearing or improper equipment disposal.

Material: GCR15 (Equal to AISI52001)
Hardness: HRC60-65
Out diameter & tolerance: 4.686±0.005mm
Length & tolerance: 2.00±0.03mm
Parallelism: 0.02mm
Perpendicularity: 0.02mm
Roughness: Ra0.16um

Quality Short needle roller may be damaged during use, so what is the cause of the damage?
Generally speaking, 33.3% of short needle rollers are damaged due to fatigue damage, 33.3% of short needle rollers are due to poor lubrication, and 33.3% are due to contaminants entering the bearing or improper equipment disposal.
Dust cleans the bearing and the surrounding environment. The fine dust invisible to the naked eye is a powerful killer of the bearing, which can increase the wear, vibration, and noise of the bearing.
Stamping forms a strong stamping when using equipment, which is very likely to cause damage to the short needle roller or directly hit the bearing with a hammer, and transfer pressure through the tumbling body. The impact of the installation of non-professional tools Use suitable and accurate equipment, you can try to avoid the use of cloth and short fibers.
Whether short needle roller is tested in the laboratory or actual use, it can be seen that short needle roller bearings with the same appearance under the same operating conditions have a great difference in actual life.
Key words:
- Short needle roller

OD Series	*Describes (ODLength)**
1.00mm series	1.000.50, 1.000.90, 1.00*1.10
2.00mm series	2.000.90, 2.001.10, 2.00*1.50
2.53mm series	2.531.10, 2.531.32, 2.53*1.42
2.57mm series	2.571.10, 2.571.32, 2.57*1.42
2.90mm series	2.901.10, 2.901.30, 2.90*1.50
3.00mm series	3.001.32, 3.001.45, 3.00*1.55
3.17mm series	3.171.32, 3.171.47, 3.17*1.55
3.17mm series	3.171.62, 3.171.97, 3.17*2.05
4.00mm series	4.001.40, 4.001.50, 4.00*2.00
5.00mm series	5.001.90, 5.003.50, 5.50*3.03
6.00 mm series	6.004.30, 6.304.40, 6.50*4.30
8.00 mm series	8.003.72, 8.004.60, 8.00*6.00

1: Chain saw guide bars, chainsaw.

2: Tea-picking machine，lawnmower.

3: Gravity Sensor for mobile phone.

4: Electronic products.

5: One-way bearing, one-way clutch.

6: Overrunning clutch, wedge type one-way bearing.

7: Small bearings, mini bearings, ultra-thin bearings.

8: Precision gasket shims.