| 加工定制: | 否 | 品牌: | NSK |
| 型号: | 82718ZW | 旧型号: | 159718Q |
| 类型: | 推力滚子轴承 | 内径: | 90(mm) |
| 外径: | 190(mm) | 厚度: | 18(mm) |
| 重量: | 15(kg) | 保持架及其材料: | N黄铜实体 |
| 使用特性: | 耐腐蚀 | 用途: | 工程机械 |
| 滚动体列数: | 单列 | 滚道类型: | 球面滚道 |
| 样品或现货: | 现货 | 轴承材质: | 高碳铬轴承钢(全淬透型)(GCr15) |
| 推力滚子轴承: | 防磁 重压型推力滚子轴承 |
推力滚子轴承系列介绍:
推力圆柱滚子轴承属分离型轴承,只能承受单向轴向载荷和轻微冲击,能够限制轴(或外壳)一个方向的轴向位移,因此可用作单向轴向定位。但其承载能力远远大于推力球轴承。滚子滚动时,由于滚子两端线速度不同,使滚子在套圈滚道上不可避免地产生滑动,因此,此类轴承的极限转速较推力球轴承低,通常仅适用于低速运转场合。
标准设计的推力圆柱滚子轴承采用车制金属实体保持架,根据用户要求,也可采用其它型式或材料的保持架。推力圆锥滚子轴承只能承受单向轴向载荷,能限制轴承单向轴向位移,故可用作单向轴向定位。与推力圆柱滚子轴承相比,承载能力大、相对滑动小,但极限转速较低。推力圆柱滚子轴承主要用于重型机床、大功率船用齿轮箱、石油钻机、立式电机等机械中。
推力滚子轴承属分离型轴承,此类轴承刚性较大,占用空间极小,可承受较大的轴向负荷, 并对冲击负荷敏感度极低.其结构型式可分为推力圆柱滚子轴承、推力圆锥滚子轴承和 推力调心滚子轴承等三种.此类轴承保持器可采用车制实体和钢板压制成。
推力圆柱滚子轴承和推力圆锥滚子轴承允许的转速较低,常使用于推力轴承无法使用的 场合,而推力调心滚子轴承既能承受轴向负荷也可承受径向负荷,并可在极重的负荷场合 使用,允许的转速也较高。
保持架
推力圆锥滚子轴承多采用黄铜实体保持架或其它车制实体保持架。当采用黄铜实体保持 架时,保持架后置代号不标志,其余标志相应的后置代号。
该类轴承装有圆台形滚子(大端为球面),滚子由滚道圈(轴圈、座圈)挡边准确引 导。
设计上使得轴圈和座圈、滚道面以及滚子滚动面的各圆锥面的顶点相交于轴承中心线上 的一点。
推力滚子轴承单向轴承可承受单向轴向载荷。
双向轴承可承受双向轴向载荷。
推力滚子轴承双向轴承将中圈与轴配合,但由于采用间隙配合,因此必须用轴套等使中 圈轴向定位。
带外罩推力圆锥滚子轴承,可以防止污物侵入,防止滚子掉出。因无保持架,能装入较 多数目的滚子,故有较大的轴向承载能力,但极限转速较低,仅能承受单向轴向载荷。
此类轴承主要用途:
单向:轴圈与座圈(均带挡边)相同的轴承,适用于径向定位,主要用于起重机吊钩、 石油钻机转环等。
当轴向载荷较大时,使用满装滚子轴承。
座圈滚道呈平面的轴承,允许旋转中(相对外壳孔)有少许轴偏心。 双向:轧钢机辊 颈。
推力圆柱滚子轴承主要用于重型机床、大功率船用齿轮箱、石油钻机、立式电机等机械 中。南京首恒机械设备有限公司
http://nsk569.cn.alibaba.com
销售热线:025-58862569 588
24小时热线:13401977678
商务QQ:1049325045
联系人:杨鹏浩
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