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R type M12x1.25P radial SWT lock nut machining center CNC precision locking screw cap tightening lathe

install

price:USD$44.00
discount 70% in 2018-09-19 to 2018-09-21
price: USD$ 30.80
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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思维福特思维福特思维福特

  • Name:R lock nut / cap
  • Brand:Svetlana /SWIFT
  • Model:SWT/R series
  • Product features:R type locking method is radial three point type locking, its thickness is thin, suitable for the thickness of the space is limited to the installation environment. The radial locking locking because copper is perpendicular to the male thread locking nut tightening torque over copper can cause large axial load reduction.
  • Texture of material:42CrMo (42CrMo steel belongs to ultra high strength steel, high strength and toughness, good hardenability, no temper brittleness, obviously after quenching and tempering treatment have high fatigue limit and anti shocksand low temperature impact toughness. The steel is suitable for manufacturing large and medium-sized plastic mould with certain strength and toughness
  • Hardness:HRC28°- 32°
  • Thread accuracy:ISO6H
  • Plane deflection:0.005mm
  • [special explanation]:All types of sweet nuts are belongs to direct manufacturers, according to customer needs, customized non-standard nuts.
  • Locking device
    The locking device for the axial positioning of the precision bearings on the shaft must be made very precisely. With the conventional lock washer lock nuts not entirely suitable for precision bearings, because the thread and the support surfaces have relatively large manufacturing tolerances, may lead to the axial deformation and the rotation axis changes. The locking nut of the precision bearing provides a uniform support on the entire circumference of the inner ring to prevent shaft deformation (especially in the case of heavy pre compliance). They should also be easy to install and disassemble. In order to meet the technical and economic requirements of the high application of machine tools, thinking Ford Motor Co developed a cost-effective precision locking nut.
  • A variety of different designs
    Thinking Ford Motor Co produces multiple types of precision locking nuts with locking pins. Two types are listed: type R and type F. Using these two nuts, bearings and other components can be simply and reliably positioned on the shaft and ensured precision. The special feature is that there are three evenly distributed phosphor bronze locking pins. These pins are pressed on the shaft thread through the six corners flat headed screw to prevent the nut from turning. The installation and design are simple. There is no need for additional locking washers or slots in the shaft. The angle between the locking pin and the flat head screw and the axis is the same as that of the thread. At the end of the lock pin and screw thread processing in one procedure, and thus has a screw thread, nut completely through the friction between the friction and adhesion of thread surface between the lock pin and shaft thread locking in place. Therefore, the locking pin does not bear the axial load acting on the nut. When the nut is locked, the screw surface will not release the axial load, and the nut will not deform (Fig. 1). Another advantage of F nuts is that they can be adjusted. Three equidistant locking pin can be accurately positioning nut, the nut with the vertical shaft, a locking pin can also be used to adjust to hit other parts on the shaft are not accurate or deviation. Since the locking pin will not deform, the R and F nuts can remain precise regardless of the number of times they are loaded or removed. Figure 2 shows an example of the application of a F lock nut.

 

Main data:

  • tolerance
    Thread according to tolerance class 6H precision car level production, vertical accuracy 0.005mm
  • Material Science
    The locking nut is made of high strength steel(42CrMo),The hardness of HRC28 degrees -32 degrees; the surface plating phosphate layer and after lubrication. The lock pin is made of phosphor bronze. Flat headed screws are grade 12.9 high strength bolts.
  • install
    Type R and F type lock nuts are easy to install. There are slots around, and different types of wrenches can be chosen according to the size of the application and nut, including hook and Impact Wrenches (Figure 3). The corresponding dimensions of the wrench and key (for flat headed screws) are given in the product table. Lock type R and F
    The nut shall be slightly fastened to the end screw until the thread of the locking pin fits with the shaft thread. Then tighten the flat headed screws evenly and alternately until the tightening torque listed in the product table is reached. The alignment between the supporting surface of the thread and the adjacent elements must be corrected,First, loosen the flat headed screw at the maximum deviation position and tighten the other two screws to the same level. Then loosen the loosened screws. If this correction is not enough, the program should be repeated until the required accuracy.
  • Disassemble
    When removing the R and F type locking nuts, remember that the locking pin is still aligned with the thread even after the flat head screws have been loosened. The pan head screws with a rubber hammer tap near the nut and the locking pin can be loose, then you can easily unscrew nuts from the shaft thread.

Thread D h n-g t d n-m MAX.Nm
SWT/R M8x0.75 16 8 3—3 1.6 13 2-M4 3.5
SWT/R M10x0.75 18 8 3—3 1.6 15 2-M4 3.5
SWT/R M10x1.0 18 8 3—3 1.6 15 2-M4 3.5
SWT/R M12x1.0 20 8 3—3 1.6 17 2-M4 3.5
SWT/R M12x1.25 20 8 3—3 1.6 17 2-M4 3.5
SWT/R M14x1.5 25 8 3—3 2 21 2-M4 3.5
SWT/R M15x1.0 25 8 3—3 2 21.5 2-M4 3.5
SWT/R M16x1.5 28 10 3—4 2 24 2-M5 4.5
SWT/R M17x1.0 28 10 3—4 2 24 2-M5 4.5
SWT/R M18x1.5 30 10 3—4 2 26 2-M5 4.5
SWT/R M20x1.0 32 10 3—4 2 28 3-M5 4.5
SWT/R M20x1.5 32 10 3—4 2 28 3-M5 4.5
SWT/R M22x1.5 35 10 3—4 2 31 3-M5 4.5
SWT/R M24x1.5 38 12 3—5 2 34 3-M6 8
SWT/R M25x1.5 38 12 3—5 2 34 3-M6 8
SWT/R M27x1.5 42 12 3—5 2 38 3-M6 8
SWT/R M30x1.0 45 12 3—5 2 41 3-M6 8
SWT/R M30x1.5 45 12 3—5 2 41 3-M6 8
SWT/R M33x1.5 52 12 3—5 2 48 3-M6 8
SWT/R M35x1.5 52 12 3—5 2 48 3-M6 8
SWT/R M36x1.5 55 14 3—6 2.5 50 3-M6 8
SWT/R M38x1.5 56 14 3—6 2.5 51 3-M6 8
SWT/R M39x1.5 58 14 3—6 2.5 53 3-M6 8
SWT/R M40x1.5 58 14 3—6 2.5 53 3-M6 8
SWT/R M42x1.5 62 14 3—6 2.5 57 3-M6 8
SWT/R M45x1.5 65 14 3—6 2.5 60 3-M6 8
SWT/R M48x1.5 68 14 3—6 2.5 63 3-M6 8
SWT/R M50x1.5 70 14 3—6 2.5 65 3-M8 18
SWT/R M52x1.5 73 16 3—7 3 67 3-M8 18
SWT/R M55x2.0 75 16 3—7 3 69 3-M8 18
SWT/R M56x2.0 77 16 3—7 3 71 3-M8 18
SWT/R M60x2.0 80 16 3—7 3 74 3-M8 18
SWT/R M64x2.0 85 16 3—7 3 79 3-M8 18
SWT/R M65x2.0 85 16 3—7 3 79 3-M8 18
SWT/R M68x2.0 92 18 3—8 3.5 85 3-M8 18
SWT/R M70x2.0 92 18 3—8 3.5 85 3-M8 18
SWT/R M72x2.0 95 18 3—8 3.5 88 3-M8 18
SWT/R M75x2.0 98 18 3—8 3.5 91 3-M8 18
SWT/R M76x2.0 100 18 3—8 3.5 93 3-M8 18
SWT/R M80x2.0 105 18 6—8 3.5 98 3-M8 18
SWT/R M85x2.0 110 18 6—8 3.5 103 3-M8 18
SWT/R M90x2.0 120 20 6—10 4 112 3-M8 18
SWT/R M95x2.0 125 20 6—10 4 117 3-M8 18
SWT/R M100x2.0 130 20 6—10 4 122 3-M8 18
SWT/R M105x2.0 140 22 6—12 5 130 3-M8 18
SWT/R M110x2.0 145 22 6—12 5 135 3-M8 18
SWT/R M115x2.0 150 22 6—12 5 140 3-M8 18
SWT/R M120x2.0 155 24 6—12 5 145 3-M8 18
SWT/R M125x2.0 160 24 6—12 5 150 3-M8 18
SWT/R M130x2.0 165 24 6—12 5 155 3-M8 18
SWT/R M135x2.0 175 26 6—14 6 163 3-M10 35
SWT/R M140x2.0 180 26 6—14 6 168 3-M10 35
SWT/R M145x2.0 190 26 6—14 6 178 3-M10 35
SWT/R M150x2.0 195 26 6—14 6 183 3-M10 35
SWT/R M155x3.0 200 28 6—16 7 186 3-M10 35
SWT/R M160x3.0 210 28 6—16 7 196 3-M10 35
SWT/R M165x3.0 210 28 6—16 7 196 3-M10 35
SWT/R M170x3.0 220 28 6—16 7 206 3-M10 35
SWT/R M180x3.0 230 30 6—18 8 214 3-M12 60
SWT/R M190x3.0 240 30 6—18 8 224 3-M12 60
SWT/R M200x3.0 250 32 6—18 8 234 3-M12 60
SWT/R M210x4.0 270 34 6—18 8 245 3-M12 85
SWT/R M220x3.0 270 34 6—18 8 245 3-M12 85
SWT/R M220x4.0 270 34 6—18 8 254 3-M12 85
SWT/R M230x3.0 280 34 6—18 8 264 3-M12 85
SWT/R M240x3.0 290 34 6—18 8 265 3-M12 85
SWT/R M245x3.0 295 34 6—18 8 279 3-M12 85
SWT/R M260x4.0 310 36 6—18 8 294 3-M12 85
SWT/R M275x4.0 325 36 6—18 8 309 3-M12 85
SWT/R M280x4.0 330 36 6—18 8 314 3-M12 85
SWT/R M300x4.0 350 36 6—18 8 334 3-M12 85
SWT/R M440x4.0 520 46 6--20 10 500 6-M20 85
SWT/R M460x4.0 540 46 6--20 10 520 6-M20 85