High Quality Needle Roller Bearing Na4918 Size 90*105*125 mm

Model NO.
NA4918
Transport Package
Standard Export Box
Specification
90*105*125
Origin
China
HS Code
8482102000
Production Capacity
100000
Reference Price
$ 4.05 - 4.50
Contact Us

Product Description

1. Needle Roller Bearing NA4918  size 90*105*125 mm .

Needle roller bearings with cylindrical roller bearings,relative to its diameter, roller is fine and long. This is called needle roller. Although it has a small section, the load bearing capacity of bearing still had high, with thin and long needle bearing roller, so the radial structure is compact, compered with the other bearings,the size of the inner diameter and load capacity is the same.and its has the minimum size of outside diameter, especially for supporting structure of radial installation size restricted.

2. Product Description . 
 

Needle roller bearing with inner ring
The needle roller bearing with inner ring is necessary when shaft could not be used as bearing race. The inner ring or outer ring with needle roller or cage assembly units could be assembled individually.
Needle roller bearing of sealed ring with or without inner ring
Single sided or double-faced sealing HXB series needle roller could avoid soil. The sealing ring is of butadiene acrylonitrile rubber. Its working temperature scope is between minus 30 and 180. Lubricant is No.2 or No.3 high-performance lithium based grease. The longer re-lubricating interval period exists for enough storing lubricant grease space. The inner ring is 1mm thicker than the exterior ring, so sealing ring could work even when shaft moves down. There is lubricant aperture in inner ring in common.

Standard bearing
The bearings of standard grade are all proved up to dimensional precision and geometric accuracy of standard size. On exterior ring, there are lubricate hole and lubrication groove.

Dimensional tolerance
To bearing of high-precision requirements, it is required to inform the precision grade. To needle roller bearing with or without inner ring, whose radial clearance is flexible, it is also suitable.

Specific requirements
Please note supplementary code of bearing code when orders exterior ring of arc shape; so does order exterior ring with lubricate hole.
The bearing ring of grinding function is necessary with the purpose to get high-precision bearing device. Then the interior ring grinded after being assembled so as to improve rotating precision.


3. We also can offer following  bearings , please check . 
 
Bearing No. Boundary dimensions(mm) Basic load ratings(N) Limiting speeds(rpm) Mass(g)
d Fw D B Cr Cor Oil  
NA4900 10 14 22 13 8006 9000 23700 21.00
NA4901 12 16 24 13 5047 6352 20000 25.10
NA4902 15 20 28 13 6447 9053 18800 32.00
NA4903 17 22 30 13 7010 10010 17000 32.80
NA4904 20 25 37 17 11912 16594 16200 70.20
NA49/22 22 28 39 17 12996 19175 14360 76.00
NA4905 25 30 42 17 13452 20475 13832 76.00
NA49/28 28 32 45 17 13900 20100 13832 90.70
NA49/32 32 40 52 20 19000 32600 11134 150.00
NA4907 35 42 55 20 19800 41500 11134 151.00
NA4908 40 48 62 22 31036 63873 8567 123.00
NA4909 45 50 68 22 37000 96500 8052 260.00
NA4910 50 58 72 22 41000 72000 7526 264.00
NA4911 55 63 80 25 50600 96580 7156 386.00
NA4912 60 68 85 25 52800 110500 6022 412.00
NA4913 65 72 90 25 57500 110500 6022 435.00
NA4914 70 80 100 30 79000 154000 5111 712.00
NA4915 75 85 105 30 82000 158000 5111 765.00
NA4916 80 90 110 30 81000 170500 5111 870.00
NA4917 85 100 120 35 111000 237000 4600 1250.00
NA4918 90 105 125 35 114000 250000 4400 1312.00
NA4919 95 110 130 35 116000 260000 4200 1371.00
NA4920 100 115 140 40 120000 2740000 4000 1900.00
NA4922 110 125 150 40 132000 290000 3700 2070.00

 

 

Needle Bearing

PNEUTEC.IT, 2023