needle roller bearing 264706 E
The main structure of needl roller bearing
Solid outer ring needle roller bearings NA,0000,NKI
This kind needle roler bearing have inner and outer rings(lock ring,needle roller,and cage).The limited rotating speed is higher.There are two kinds needle roller bearings according the rows of bearing, single and double rows.
Single : NA48,NA49,NA69(<32mm) and NKI
There are double lock ring of needle roller bearings whose diameter is shorter than 7mm,and there are double ribs of these needle roller bearings whose diameter is longer than 7mm.
Double:NA69 series (d≥32mm)
The material of cage
Needle roller bearings are generally made of high-quality low-carbon steel, can also be used to inject nylon and other materials
The allowed tilt angle
Needle roller bearings are generally not allowed to tilt the angle. During the process of using, the maximum angle in the full length of the needle can not be greater than 0.25%~0.3% of the angle.
Technical parameters and dimensions of needle roller bearing 264706 E
| Inner diameter (d): |
29.96 (30) mm |
| Outer diameter (D): |
42 mm |
| Width (H) |
33 mm |
| Weight |
0.144 kg |
| Roller dimensions |
7x28.5 mm |
| Number of rollers |
12 pcs |
| Dynamic bearing capacity |
53 kN |
| Static bearing capacity |
20 kN |
Inner diameter (d): 29.96 (30) mm;
Outer diameter (D): 42 mm;
Width (H): 33 mm;
Weight: 0.144 kg;
Roller dimensions: 7x28.5 mm;
Number of rollers: 12 pcs .;
Dynamic bearing capacity: 53 kN;
Static bearing capacity: 20 kN;
Maximum rotation speed: 14,000 rpm.
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