简述
LR/LRE弹片锁紧螺母(可调节螺母),应用于精密机械需要精密的夹紧,并安全锁紧的场合,主要应用在调节和夹紧各种轴承。最初的夹紧系统是建立在可调节螺母和套环的一部分螺纹上(螺纹夹紧)。当用内六角拧紧螺钉,螺钉对螺母会产生巨大的压力,使得原本啮合在轴或者主轴上的螺母的螺纹变形从而完成夹紧。可调节螺母和套环可以方便的锁紧,解锁并且可以重复使用不丧失精度。
LR:1个锁紧弹簧片的精密锁紧螺母
LRE：2个对称锁紧弹簧片的精密锁紧螺母
LR/LRE弹片锁紧螺母的锁紧螺钉为径向锁定，螺母特征是在螺母本体上有一个或两个径向锁紧弹簧片。旋紧锁紧螺钉产生的径向力作用于螺纹锁紧弹簧上，实现强力径向锁紧。垂直于螺纹端的接触面可以调节、固定轴承及其它精密公差的机械元件。
特征
- 本体材质：SCM440(42CrMo4)调质
- 标准硬度：HRC28°~32°
- 螺纹精度：ISO 4H
- 平面偏摆：0.002mm~0.005mm
- 表面处理：喷砂发黑
专利号：CN201821512214.7
参数
| 零件型号 | D （mm） | h （mm） | d （mm） | g （mm） | t （mm） | n-M | 螺钉扭紧力矩 （N.m） | 最大轴向载荷 （kN） | 重量 （kg） |
|---|---|---|---|---|---|---|---|---|---|
| LR-M12×1.0P | 24 | 12 | 19 | 4 | 2 | 1-M6 | 8 | 28 | 0.03 |
| LR-M14×1.0P | 26 | 12 | 21 | 4 | 2 | 1-M6 | 8 | 33 | 0.035 |
| LR-M15×1.0P | 30 | 12 | 25 | 4 | 2 | 1-M6 | 8 | 40 | 0.045 |
| LR-M17×1.0P | 32 | 12 | 27 | 4 | 2 | 1-M6 | 8 | 46 | 0.055 |
| LR-M18×1.0P | 32 | 12 | 27 | 4 | 2 | 1-M6 | 8 | 49 | 0.054 |
| LR-M20×1.0P | 35 | 12 | 30 | 4 | 2 | 1-M6 | 8 | 55 | 0.06 |
| LR-M22×1.5P | 35 | 12 | 30 | 4 | 2 | 1-M6 | 8 | 57 | 0.058 |
| LRE-M22×1.5P | 35 | 12 | 30 | 4 | 2 | 2-M6 | 8 | 81 | 0.058 |
| LR-M25×1.5P | 40 | 12 | 35 | 5 | 2 | 1-M6 | 8 | 67 | 0.07 |
| LRE-M25×1.5P | 40 | 12 | 35 | 5 | 2 | 2-M6 | 8 | 90 | 0.07 |
| LR-M30×1.5P | 45 | 12 | 40 | 5 | 2 | 1-M6 | 8 | 81 | 0.085 |
| LRE-M30×1.5P | 45 | 12 | 40 | 5 | 2 | 2-M6 | 8 | 112 | 0.085 |
| LR-M32×1.5P | 46 | 12 | 41 | 5 | 2 | 1-M6 | 8 | 93 | 0.09 |
| LRE-M32×1.5P | 46 | 12 | 41 | 5 | 2 | 2-M6 | 8 | 134 | 0.09 |
| LR-M35×1.5P | 50 | 12 | 45 | 5 | 2 | 1-M6 | 8 | 98 | 0.095 |
| LRE-M35×1.5P | 50 | 12 | 45 | 5 | 2 | 2-M6 | 8 | 136 | 0.095 |
| LR-M38×1.5P | 52 | 12 | 47 | 5 | 2 | 1-M6 | 8 | 102 | 0.1 |
| LRE-M38×1.5P | 52 | 12 | 47 | 5 | 2 | 2-M6 | 8 | 143 | 0.1 |
| LR-M40×1.5P | 55 | 12 | 49 | 6 | 2.5 | 1-M6 | 8 | 104 | 0.105 |
| LRE-M40×1.5P | 55 | 12 | 49 | 6 | 2.5 | 2-M6 | 8 | 157 | 0.105 |
| LR-M42×1.5P | 56 | 12 | 50 | 6 | 2.5 | 1-M6 | 8 | 109 | 0.11 |
| LRE-M42×1.5P | 56 | 12 | 50 | 6 | 2.5 | 2-M6 | 8 | 176 | 0.11 |
| LR-M45×1.5P | 60 | 12 | 54 | 6 | 2.5 | 1-M6 | 8 | 119 | 0.12 |
| LRE-M45×1.5P | 60 | 12 | 54 | 6 | 2.5 | 2-M6 | 8 | 181 | 0.122 |
| LR-M50×1.5P | 65 | 12 | 59 | 6 | 2.5 | 1-M6 | 8 | 135 | 0.131 |
| LRE-M50×1.5P | 65 | 12 | 59 | 6 | 2.5 | 2-M6 | 8 | 205 | 0.131 |
| LR-M52×1.5P | 67 | 12 | 61 | 6 | 2.5 | 1-M6 | 8 | 140 | 0.132 |
| LRE-M52×1.5P | 67 | 12 | 61 | 6 | 2.5 | 2-M6 | 8 | 213 | 0.132 |
| LR-M55×2.0P | 75 | 15 | 68 | 7 | 3 | 1-M8 | 18 | 169 | 0.23 |
| LRE-M55×2.0P | 75 | 15 | 68 | 7 | 3 | 2-M8 | 18 | 229 | 0.23 |
| LR-M60×2.0P | 80 | 15 | 73 | 7 | 3 | 1-M8 | 18 | 185 | 0.256 |
| LRE-M60×2.0P | 80 | 15 | 73 | 7 | 3 | 2-M8 | 18 | 255 | 0.256 |
| LR-M65×2.0P | 85 | 15 | 78 | 7 | 3 | 1-M8 | 18 | 204 | 0.27 |
| LRE-M65×2.0P | 85 | 15 | 78 | 7 | 3 | 2-M8 | 18 | 280 | 0.27 |
| LR-M70×2.0P | 90 | 15 | 82 | 8 | 3.5 | 1-M8 | 18 | 220 | 0.285 |
| LRE-M70×2.0P | 90 | 15 | 82 | 8 | 3.5 | 2-M8 | 18 | 305 | 0.285 |
| LR-M75×2.0P | 95 | 15 | 87 | 8 | 3.5 | 1-M8 | 18 | 237 | 0.305 |
| LRE-M75×2.0P | 95 | 15 | 87 | 8 | 3.5 | 2-M8 | 18 | 331 | 0.305 |
| LR-M80×2.0P | 105 | 15 | 97 | 8 | 3.5 | 1-M8 | 18 | 255 | 0.42 |
| LRE-M80×2.0P | 105 | 15 | 97 | 8 | 3.5 | 2-M8 | 18 | 355 | 0.42 |
| LR-M85×2.0P | 110 | 15 | 102 | 8 | 3.5 | 1-M8 | 18 | 273 | 0.44 |
| LRE-M85×2.0P | 110 | 15 | 102 | 8 | 3.5 | 2-M8 | 18 | 385 | 0.44 |
| LR-M90×2.0P | 115 | 15 | 106 | 10 | 4 | 1-M8 | 18 | 292 | 0.46 |
| LRE-M90×2.0P | 115 | 15 | 106 | 10 | 4 | 2-M8 | 18 | 410 | 0.46 |
| LR-M95×2.0P | 120 | 15 | 111 | 10 | 4 | 1-M8 | 18 | 310 | 0.49 |
| LRE-M95×2.0P | 120 | 15 | 111 | 10 | 4 | 2-M8 | 18 | 450 | 0.49 |
| LR-M100×2.0P | 125 | 15 | 116 | 10 | 4 | 1-M8 | 18 | 325 | 0.51 |
| LRE-M100×2.0P | 125 | 15 | 116 | 10 | 4 | 2-M8 | 18 | 465 | 0.51 |
| LR-M105×2.0P | 130 | 15 | 119 | 12 | 5 | 1-M8 | 18 | 342 | 0.52 |
| LRE-M105×2.0P | 130 | 15 | 119 | 12 | 5 | 2-M8 | 18 | 495 | 0.52 |
| LR-M110×2.0P | 135 | 15 | 124 | 12 | 5 | 1-M8 | 18 | 358 | 0.55 |
| LRE-M110×2.0P | 135 | 15 | 124 | 12 | 5 | 2-M8 | 18 | 520 | 0.55 |
| LR-M115×2.0P | 140 | 15 | 129 | 12 | 5 | 1-M8 | 18 | 377 | 0.57 |
| LRE-M115×2.0P | 140 | 15 | 129 | 12 | 5 | 2-M8 | 18 | 550 | 0.57 |
| LR-M120×2.0P | 145 | 15 | 134 | 12 | 5 | 1-M8 | 18 | 394 | 0.59 |
| LRE-M120×2.0P | 145 | 15 | 134 | 12 | 5 | 2-M8 | 18 | 580 | 0.59 |
| LR-M125×2.0P | 150 | 15 | 139 | 12 | 5 | 1-M8 | 18 | 415 | 0.625 |
| LRE-M125×2.0P | 150 | 15 | 139 | 12 | 5 | 2-M8 | 18 | 610 | 0.625 |
| LR-M130×2.0P | 155 | 15 | 144 | 12 | 5 | 1-M8 | 18 | 435 | 0.65 |
| LRE-M130×2.0P | 155 | 15 | 144 | 12 | 5 | 2-M8 | 18 | 630 | 0.65 |
| LR-M135×2.0P | 165 | 20 | 152 | 12 | 5 | 1-M10 | 35 | 520 | 1.1 |
| LRE-M135×2.0P | 165 | 20 | 152 | 14 | 6 | 2-M10 | 35 | 670 | 1.1 |
| LR-M140×2.0P | 170 | 20 | 157 | 14 | 6 | 1-M10 | 35 | 540 | 1.13 |
| LRE-M140×2.0P | 170 | 20 | 157 | 14 | 6 | 2-M10 | 35 | 690 | 1.13 |
| LR-M145×2.0P | 175 | 20 | 162 | 14 | 6 | 1-M10 | 35 | 570 | 1.15 |
| LRE-M145×2.0P | 175 | 20 | 162 | 14 | 6 | 2-M10 | 35 | 720 | 1.15 |
| LR-M150×2.0P | 180 | 20 | 167 | 14 | 6 | 1-M10 | 35 | 600 | 1.2 |
| LRE-M150×2.0P | 180 | 20 | 167 | 14 | 6 | 2-M10 | 35 | 750 | 1.2 |
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