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Linear Motion Rolling Bearings
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Linear Motion Rolling Bearings

1. Characteristics of linear motion rolling bearing:
(1) Linear motion rolling bearing is made of GCr15 bearing steel, which is composed of hardened high-precision bearing base and rolling body, etc. It is installed on the guideway of machine tool and other mechanical surfaces for reciprocating linear motion. Installed on the machine tool guideway and other mechanical surfaces for reciprocating linear motion, applicable to grinding machines, precision instruments, also applicable to CNC machine tools and heavy machine tools.
(2) This bearing has the advantages of large loading capacity, low friction, low wear, good rigidity, long life, and can maintain high precision for a long time. It can reduce the weight, transmission mechanism and power consumption of the whole machine in the case of high frequency of repeated action, start and stop reciprocating motion.
(3) The rolling body of this bearing is well guided when rolling, so that the movement accuracy and positioning accuracy of the machine can be improved.
(4) The bearing has good control performance when carrying out low-speed reciprocating motion or fine adjustment, and moves lightly without creeping.
(5) This bearing is not limited by the machine bed, and the number of rolling bearings can be selected and determined according to the load values specified in the different series and types of bearings in the catalogue.
(6) After adopting this bearing, the machine tool positioning reference is of high precision, easy to assemble and adjust, easy to lubricate, simple to maintain, and more safe and reliable.
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Product description
Parameters

Circulating Needle Roller Bearings (LNS0000RN type)

 

Bearing type external dimension(mm) Rated dynamic load(kN)
  B L B1 A T L1 h J J1 N  
LNS 1540RN 15 40 30 11 15 20 7 23 12 3.3 10.8
LNS 2050RN 20 50 36 12 16 30 8 29 18 3.8 19.1
LNS 2560RN 25 60 45 14 19 35 9 36 20 4.8 28.3
LNS 3270RN 32 70 55 15 20 45 10 44 27 5.5 45
LNS 4087RN 40 87 68 21 28 55 14 54 35 6.5 69.5
LNS 50125RN 50 125 82 30 40 78 20 66 50 8.5 120


3.Circulating Needle Roller Bearings (LNS0000GRNUK type)

 

Bearing type
external dimension(mm)

Rated dynamic load (kN)
  A B L J J1 (D) N h  
LNS 3052 GRNUK 16.5 30 52 23 12 M4 3.6 11 15.1
LNS 3662 GRNUK 17.5 36 62 29 18 M4 4.8 12 26
LNS 4575 GRNUK 20.5 45 75 36 20 M5 5.8 14 40.3
LNS 5585 GRNUK 21.5 55 85 44 27 M5 5.8 15 52.4
LNS 6094 GRNUK 25 60 94 49 30 M5 5.8 17.5 76
LNS 68105 GRNUK 30 68 105 54 35 M8 7 21 84.1
LNS 75120 GRNUK 35 75 120 60 38 M8 8 25 124
LNS 52145 GRNUK 42 82 145 66 40 M8 9 30 149


4.accuracy level

 

accuracy level common difference (of an arithmetic series)( mm) Grouping bias(mm)
ordinary class G 0.01 -- -- -- -- --
high grade E 0.005 0 -0.005 -- -- --
-0.005 -0.01
precision grade D 0.003 0 -0.003 -0.006 -0.009 --
-0.003 -0.006 -0.009 -0.012
Ultra-precision C 0.002 0 -0.002 -0.004 -0.006 -0.008
-0.002 -0.004 -0.006 -0.008 -0.01

5. Ordering Information
(1) In addition to the series specified in the sample, the special specifications of the rail bearing can be negotiated to order.
(2) The user must indicate whether the connection form of rail bearing is through hole or screw hole when ordering.
(3) The quantity and precision grade of a group of rail bearing must be marked when users order.

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