Wastone Technology Co.,Ltd.
Wastone Technology Co.,Ltd. Expert Manufactuer For Tapered Roller Bearings
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steel Full Complement needle roller bearing , V4 / V3 / V2 / V1
Quick Detail:
Full Complement needle roller bearing without inner ring Model RNAV4902
Type: needle roller bearing
Precision Rating: P0,P5,P6
Material: Gcr15 Gcr11,stainless steel,carbon steel
Clearance:C1 C2 C3 C4 as your required
Bearing steel liner: GCr15/100Cr6/SUJ2
Vibration Level: V4, V3, V2, V1
Noise rank: Z1,Z2, Z3,
Bore Size: 20mm-115 mm
Outside Diameter: 28- 140mm
Place of Origin: China (Mainland)
OEM: Accept
Certificate: ISO9001:2008
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Description:
|
Shaft |
Bearing Designation |
Mass |
Boundary Dimensions |
Basic Load Rating |
Limiting Speed |
||||
|
Current Code |
riginal Code |
Fw |
D |
C |
Dynamic |
Static |
Oil |
||
|
mm |
g |
mm |
N |
rpm |
|||||
|
20 |
RNAV4902 |
4084902E |
|
20 |
28 |
13 |
10800 |
29800 |
4500 |
|
21.87 |
RNAV4002 |
4084102 |
45 |
21.87 |
32 |
17 |
|
|
|
|
22 |
RNAV4903 |
4084903E |
|
22 |
30 |
13 |
|
|
|
|
24.3 |
RNAV4003 |
4084103 |
62 |
24.3 |
35 |
18 |
17900 |
37900 |
4300 |
|
25 |
RNAV4904 |
4084904E |
|
25 |
37 |
17 |
|
|
|
|
28.7 |
RNAV4004 |
4084104 |
114 |
28.7 |
42 |
22 |
28150 |
60900 |
3900 |
|
30 |
RNAV4905 |
4084905E |
|
30 |
42 |
17 |
|
|
|
|
33.5 |
RNAV4005 |
4084105 |
129 |
33.5 |
47 |
22 |
33800 |
70800 |
3700 |
|
35 |
RNAV4906 |
4084906E |
|
35 |
47 |
17 |
|
|
|
|
40.1 |
RNAV4006 |
4084106 |
193 |
40.1 |
55 |
25 |
49900 |
96500 |
3500 |
Full Complement needle roller bearing without inner ring Model RNAV4902
As for the full complement needle roller bearing without inner ring, since the inner ring has no shoulder and cage, the inner ring, outer ring, complete set of needles can be mounted respectively. It is s suitable for parts of which the radial size is limited. The surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63μm. This kind of full complement bearing, with inner ring or without inner ring, does not limit the axial shift of shaft and housing.
Since this kind of bearing has no cage, the needles rotate without correct guiding, they rub heavily again steach other and the bearing has the low limiting rotational speed.
Applications:
l Road Rollers
l Industrial Gearboxes
l Electric Motors
l Automotive Transmissions
l Pumps
l Compressors
l Industrial Fans
l Windmills
l Unbalanced Exciters
l Screw Compressor Applications such as Air Conditioning Systems
Specifications:
1. High rigidity and long life
2. Large load capacity
3. Good wear ability
4. Nice appearance complete product system
Features of Full Complement needle roller bearing without inner ring Model RNAV4902
a. High Precision and Rigidity
b. Ease of Assembly
c. Complete range of types
d. Needle roller bearings without inner ring are used in automobile, rolling mill, mining, metallurgical industry, plastic machinery, etc.
e. Other advantages of Needle roller bearings without inner ring :
1. Bearing material: bearing steel Gcr15
2. Smooth movement, low friction, high rigidity and long life
3. Nice appearance, complete product system
4. We can make non-standard needle roller bearings without inner ring according to clients samples of drawing