Jinan Huaruiri Bearing Co., Ltd.
Main products:Ball Bearing,Roller Bearing,Deep Grove Ball Bearing
Products
Contact Us
  • Contact Person : Ms. Huang Vita
  • Company Name : Jinan Huaruiri Bearing Co., Ltd.
  • Tel : 86-531-68826078
  • Fax : 86-531-68826078
  • Address : Shandong,jinan,No.207 2rd Building,No.158 of Jiluo Road Tianqiao zone,Jinan
  • Country/Region : China
  • Zip : 250031

2011 Large Stock High Quality Needle Roller Bearings NAV4006

2011 Large Stock High Quality Needle Roller Bearings NAV4006
Product Detailed
2011 Large Stock Needle Roller Bearings 1) High quality control 2) competitive price 3) Small order accepte 4) Low noise

2011 Large Stock High Quality Needle Roller Bearings eries 

New 

Old 

d(mm)

D (mm)

B (mm)

Cr(kN)

Cor(kN)

Grease

Speed limiting (r/min)

Oil speed limiting (r/min)

Weight (kg)

NQI50/25

-

50

68

25

47.4

90.4

8500

-

0.255

NQIS45/22

-

45

72

22

44.6

71.6

8300

-

0.341

NA4910R

-

50

72

22

48.0

80.0

7900

-

0.276

NA5910

-

50

72

30

61.6

110

7900

-

0.375

NA4911R

-

55

80

25

58.4

99.0

7300

-

0.401

NA5911

-

55

80

34

75.6

138

7300

-

0.546

NA4912R

-

60

85

25

61.2

108

6800

-

0.431

NA5912

-

60

85

34

79.2

150

6800

-

0.587

NA5913

-

65

90

34

85.4

158

6400

-

0.613

NA5914

-

70

100

40

107

207

5700

-

0.973

NA5915

-

75

105

40

109

216

5400

-

1.03

NA5916

-

80

110

40

114

232

5100

-

1.09

NA5917

-

85

120

46

126

293

4700

-

1.65

NA5918

-

90

125

46

137

311

4400

-

1.70

NA5919

-

95

130

46

141

331

4200

-

1.78

Needle bearings are roller bearings with rollers that have high length-to diameter ratios. Needle bearings are used in farm and construction equipment, automotive transmissions, small gasoline engines, gear pumps, small appliance and tool motors, alternators, and aircraft controls.

Needle bearings are usually lubricated with grease, but oil or oil-mist lubrication is preferred for heavy-duty or high-speed applications. Many light-duty needle bearings never require relubrication, but high loads or speeds demand it.

   

 Needle bearings have the highest load capacity for a given radial space of all rolling-element bearings, but their use is limited to bore diameters less than 10 in.

 All needle bearings are variations of two basic designs. The first needle bearing design, full complement, has a full complement of needles and contains no retainer. The second needle bearing design, caged needle, contains a retainer or cage for roller guidance and spacing. Caged needle bearings have smaller roller complements and lower load capacities than full-complement bearings. Needle bearings have the advantage of a higher speed capacity; retainers prevent high-velocity rubbing between adjacent needles and provide more effective roller guidance. Needle bearings also have greater lubricant capacity.

 

 

 

 

 

 

 

2011 Large Stock High Quality Needle Roller Bearings NAV4006



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