NA4903 Solid Collar Needle Roller Bearing With Inner Ring NA4903
17x30x13mm
Description:
Product Name | Needle Roller Bearing |
Material | Chrome steel |
Brand name | SKF , YGB , OEM |
Series | NA4903 |
Vibration | V1,V2,V3,V4 |
Precision Rating | P0, P6,P5,P4,P2 |
Quality standard | ISO9001, ABEC-1(Z1V1) |
Tolerance Grades | ABEC-1 (P0), ABEC-3 (P6),ABEC-5(P5) |
Package | A: tube package+outer carton+pallets |
| B: single box+outer carton+pallet |
| C: According to your's requirement |
1.The Description of Needle Roller Bearings:
Needle roller bearing type belongs to the separation bearing, have
needle roller bearing inner and outer race. According to these
bearings on the column number of the needle is divided into single
row, double row and four row circular cone needle bearings of
different structure. Single row circular cone needle bearings can
bear radial load and the single direction axial load. When bearing
radial load, axial force component, would create a so when need
another affordable bearing axial force in the opposite direction to
balance.
Needle roller bearing is mainly used to bear the joint mainly
consisting of radial load and axial load. Compared with the angular
contact ball bearing, large carrying capacity, limit rotational
speed is low. Needle roller bearings can withstand axial load in
one direction, can limit axial displacement of shaft or housing in
one direction.
2.The Advantage of Needle Roller Bearings:
1.Strong abrasion capability
2.Competitive price
3.Low cross section. Low Noise and long life
4.High Precision and load capacity.
5.Various types are available
6.Reliable quality
7.OEM is accepted
8.Various design and Widespread use.
3:The definition of Needle Roller Bearings:
Capacity single row needle roller bearing axial load depends on the
contact angle, the outer ring raceway angle, the greater the angle,
the greater the axial load capacity. Needle roller bearings is the
largest amount of single row needle roller bearings. In the car's
front wheel hub, and use the small size of the double row needle
roller bearings. Four-row needle roller bearings used in
large-scale cold rolling mill and other heavy machines.
4:The Application of Needle Roller Bearings:
Needle roller bearings are widely used in automotive, mill, mining,
metallurgy, plastics machinery and other industries.
.
The Drawing:
Aplication:
• Paper moving for copiers, fax machines, paper towel dispensers,
etc.
• Exercise equipment
• Two-speed gearboxes
• Rack indexing drives
• Converters, non-return devices, and transcendental clutches.
• Fishing Reels, RC Cars, RC Helis, RC Engines
Related Products:
| Shaft Diameter(mm) | Bearing Type | Boundary Dimensions(mm) | Weight(g) |
| Current Type | Original Type | d | D | B |
| 8 | AXK0821 | | 8 | 21 | 2 | 2 |
| 10 | AXK1024 | | 10 | 24 | 2 | 3 |
| 12 | AXK1226 | | 12 | 26 | 2 | 3 |
| 15 | AXK1528 | | 15 | 28 | 2 | 4 |
| 17 | AXK1730 | | 17 | 30 | 2 | 4 |
| 20 | AXK2035 | | 20 | 35 | 2 | 5 |
| 25 | AXK2542 | | 25 | 42 | 2 | 7 |
| 30 | AXK3047 | | 30 | 47 | 2 | 8 |
| 40 | AXK4060+2AS | | 40 | 60 | 3 | 16 |
| 45 | AXK4565 | | 45 | 65 | 3 | 18 |
| 55 | AXK5578 | | 55 | 78 | 3 | 28 |
| 60 | AXK6085 | | 60 | 85 | 3 | 33 |
| 70 | AXK7095 | | 70 | 95 | 4 | 60 |
| 75 | AXK75100 | | 75 | 100 | 4 | 61 |
| 90 | AXK90120 | | 90 | 120 | 4 | 86 |
| 100 | AXK100135 | | 100 | 135 | 4 | 104 |
| 110 | AXK110145 | | 110 | 145 | 4 | 122 |
| 130 | AXK130137 | | 130 | 137 | 5 | |
| 150 | AXK150190 | | 150 | 190 | 5 | 232 |
| 160 | AXK160200 | | 160 | 200 | 5 | 246 |
Contact us:
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to inquiry!
