滚针轴承
Needle roller bearings（sometimes called “needle bearings”） are bearings with cylindrical rollers whose diameter is small in relation to their length. The improved roller/raceway profile prevents stress peaks and thus extends bearing life.
Deruna Bearing offers needle roller bearings in many different designs, series and various sizes, 这使得它们适用于广泛的操作条件和应用.
Parameters of Needle Bearing Size
| 国产新机型 | 国产老款 | 内径 (毫米) | 外径 (毫米) | 宽度(毫米) | 铬(千牛) | 心电图(千牛) | 油脂润滑速度 (转/分钟) | 油润滑速度 (转/分钟) | 重量 (公斤) |
| NAV4003 | 4074103 | 17 | 35 | 18 | – | – | – | – | 0.098 |
| NAV4004 | 4074104 | 20 | 42 | 22 | – | – | – | – | 0.175 |
| RNAV4016 | 4084116 | 100.3 | 125 | 45 | – | – | – | – | 0 |
| RNAV4015 | 4084115 | 92.7 | 115 | 40 | – | – | – | – | 1.025 |
| RNAV4014 | 4084114 | 88 | 110 | 40 | – | – | – | – | 0.982 |
| RNAV4013 | 4084113 | 80.3 | 100 | 35 | – | – | – | – | 0.692 |
| RNAV4012 | 4084112 | 74.6 | 95 | 35 | – | – | – | – | 1.025 |
| RNAV4011 | 4084111 | 69.8 | 90 | 35 | – | – | – | – | 0.645 |
| RNAV4010 | 4084110 | 62.1 | 80 | 30 | – | – | – | – | 0.426 |
| RNAV4009 | 4084109 | 57.4 | 75 | 30 | – | – | – | – | 0.39 |
| RNAV4008 | 4084108 | 51.6 | 68 | 28 | – | – | – | – | 0.304 |
| RNAV4007 | 4084107 | 45.9 | 62 | 27 | – | – | – | – | 0.259 |
| RNAV4006 | 4084106 | 40.1 | 55 | 25 | – | – | – | – | 0.193 |
| RNAV4005 | 4084105 | 33.5 | 47 | 22 | – | – | – | – | 0.129 |
| RNAV4920 | 4084920乙 | 115 | 140 | 40 | – | – | – | – | 0 |
| RNAV4919 | 4084919乙 | 110 | 130 | 35 | – | – | – | – | 0 |
| RNAV4918 | 4084918乙 | 105 | 125 | 35 | – | – | – | – | 0 |
| RNAV4916 | 4084916乙 | 90 | 110 | 30 | – | – | – | – | 0 |
| RNAV4914 | 4084914乙 | 80 | 100 | 30 | – | – | – | – | 0 |
| RNAV4912 | 4084912乙 | 68 | 85 | 25 | – | – | – | – | 0 |
| RNAV4910 | 4084910乙 | 58 | 72 | 22 | – | – | – | – | 0 |
| RNAV4909 | 4084909乙 | 52 | 68 | 22 | – | – | – | – | 0 |
| RNAV4908 | 4084908乙 | 48 | 62 | 22 | – | – | – | – | 0 |
| RNAV4907 | 4084907乙 | 42 | 55 | 20 | – | – | – | – | 0 |
| RNAV4906 | 4084906乙 | 35 | 47 | 17 | – | – | – | – | 0 |
| RNAV4905 | 4084905乙 | 30 | 42 | 17 | – | – | – | – | 0 |
| RNAV4904 | 4084904乙 | 25 | 37 | 17 | – | – | – | – | 0 |
| RNAV4903 | 4084903乙 | 22 | 30 | 13 | – | – | – | – | 0 |
| RNAV4902 | 4084902乙 | 20 | 28 | 13 | – | – | – | – | 0 |
| NA6901 | 6544901 | 12 | 24 | 22 | 16.3 | 21.7 | 27000 | – | 0.045 |
| NA6902 | 65449O2 | 15 | 28 | 23 | 18.4 | 27.1 | 22000 | – | 0.062 |
| NA6903 | 6544903 | 17 | 30 | 23 | 18.9 | 29 | 20000 | – | 0.067 |
| NA6904 | 65449O4 | 20 | 37 | 30 | 35.4 | 48.9 | 17000 | – | 0.137 |
| NA6905 | 6544905 | 25 | 42 | 30 | 40.1 | 60.7 | 15000 | – | 0.162 |
| NA6906 | 6544906 | 30 | 47 | 30 | 42.7 | 69 | 13000 | – | 0.186 |
| NA6907 | 6254907 | 35 | 55 | 36 | 51.4 | 85.1 | 11000 | – | 0.297 |
| NA6908 | 6254908 | 40 | 62 | 40 | 66.7 | 115 | 9400 | – | 0.415 |
| NA6909 | 6254909 | 45 | 68 | 40 | 70.7 | 127 | 8800 | – | 0.496 |
| RNA6901 | 6644901 | 12 | 24 | 22 | 16.3 | 21.7 | 27000 | – | 0.03 |
| RNA6902 | 6644902 | 15 | 28 | 23 | 18.4 | 27.1 | 22000 | – | 0.038 |
| RNA6903 | 6644903 | 17 | 30 | 23 | 18.9 | 29 | 20000 | – | 0.04 |
| RNA6904 | 6644904 | 20 | 37 | 30 | 35.4 | 48.9 | 17000 | – | 0.096 |
| RNA6905 | 6644905 | 25 | 42 | 30 | 40.1 | 60.7 | 15000 | – | 0.112 |
| RNA6906 | 6644906 | 35 | 47 | 30 | 42.7 | 69 | 13000 | – | 0.126 |
| RNA6907 | 6354907 | 42 | 55 | 36 | 51.4 | 85.1 | 11000 | – | 0.182 |
| RNA6908 | 6354908 | 48 | 62 | 40 | 66.7 | 115 | 9400 | – | 0.247 |
| RNA6909 | 6354909 | 52 | 68 | 40 | 70.7 | 127 | 8800 | – | 0.334 |
| NA6910 | 6254910 | 50 | 72 | 40 | 74 | 140 | 7900 | – | 0.497 |
| NA6911 | 6254911 | 55 | 80 | 45 | 86.7 | 165 | 7300 | – | 0.711 |
| NA6912 | 6254912 | 60 | 85 | 45 | 90.8 | 179 | 6800 | – | 0.765 |
| NA6913 | 6254913 | 65 | 90 | 45 | 98.4 | 190 | 6400 | – | 0.798 |
| NA6914 | 6254914 | 70 | 100 | 54 | 132 | 271 | 5700 | – | 1.37 |
| NA6915 | 6254915 | 75 | 105 | 54 | 135 | 283 | 5400 | – | 1.44 |
| NA6916 | 6254916 | 80 | 110 | 54 | 140 | 304 | 5100 | – | 1.46 |
| NA6917 | 6254917 | 85 | 120 | 63 | 165 | 390 | 4600 | – | 2.29 |
| NA6918 | 6254918 | 90 | 125 | 63 | 167 | 403 | 4400 | – | 2.31 |
| NA6919 | 6254919 | 95 | 130 | 63 | 173 | 428 | 4200 | – | 2.43 |
| NA6920 | 6254920 | 100 | 140 | 71 | – | – | – | – | – |
合作品牌
Types of Needle Roller Bearing
- 冲压外圈滚针轴承
- combined needle roller bearings
- heavy duty needle roller bearings
- thrust needle roller bearings
- needle roller bearing with inner ring
- stainless steel needle roller thrust bearings
- cam follower needle roller bearing
- ceramic needle roller bearings
- double row needle roller bearing
- cylindrical needle roller bearing
- drawn cup needle roller bearings with closed end
- solid needle roller bearings
- drawn cup roller clutch
- sealed needle bearings
- caged needle roller bearing
- loose needle roller bearings
- flat needle roller bearing
- split needle roller bearing
- linear needle bearing
- needle thrust bearings and washers
- connecting rod needle roller bearing
- needle roller bearing without inner ring
drawn cup needle bearing
Drawn cup needle roller bearings have a unique outer ring configuration with cage and full complement rollers. Drawn cup roller bearings are normally used in applications where the housing bore cannot be used as a raceway for needle roller and cage assemblies, but where a very compact and economical bearing arrangement is required. These easy-to-fit bearings offer the thinnest outer rings of all rolling bearings as well as high load capacity, high terminal speeds and great wear resistance.
组合滚针轴承
- Combined needle roller thrust bearing
is a bearing unit composed of radial needle bearing and thrust bearing components. - 特征: 结构紧凑, 体积小, 高旋转精度, 能承受一定的轴向负荷，同时承受较高的径向负荷. 产品结构多样, 适应性强且易于安装.
- 应用: 用于机床等各种机械设备, 冶金机械, 纺织机械和印刷机械, 并且可以使机械系统设计非常紧凑和灵巧.
caged needle roller bearing
Caged roller bearings is an easy-to-operate bearing with high load capacity despite its small dimensions. The unique cage structure guides the needle rollers for effective lubrication even at high speeds.
caged needle bearing has a controlled profile bulge that reduces stress concentrations at the roller ends due to moderate misalignment/shaft bending, thereby extending bearing life.
stainless steel needle roller bearings
As a needle roller bearing supplier, we produce stainless needle bearings with excellent corrosion resistance. They are used in medical equipment, 食品机械, packaging machinery and other industries that require high corrosion resistance.
Solid Needle Roller Bearings
Solid needle roller bearings offer maximum load capacity and high precision in a compact space. Suitable for a wide range of operating conditions, these bearings have rings made from carefully selected vacuum-deaerated bearing steel or carburised steel and precision-ground and heat-treated rollers. Lightweight and extremely strong, the cages guide the rollers accurately and smoothly.
Strengths and characteristics of Needle Roller Bearing
- 滚针轴承承载能力大，适用于安装尺寸有限的支撑结构.
- 轴颈表面硬化为滚动面, 并且轴承通过压配合安装到座孔中, 并且不需要轴向定位.
- 轴承安装前应注入适量润滑脂.
- 通常, 组装后无需再润滑 (BK型轴承用于无凸端轴颈的支撑, 端面封闭密封, 并能承受较小的轴向运动。)
- 滚针轴承是带有圆柱滚子的滚子轴承，圆柱滚子相对于其直径而言又细又长. 这种类型的滚子称为滚针.
- 滚针轴承配备细长滚子 (滚筒直径D≤5mm, 长径≥2.5, L是滚筒的长度), 所以径向结构紧凑, 特别适用于径向安装尺寸有限的支撑结构 .
冲压外圈滚针轴承
- 冲压外圈滚针轴承是带有薄冲压外圈的滚针轴承.
特征: 截面高度非常低，承载能力高. - 地方: 主要用于结构紧凑、价格低廉的轴承配置, 轴承箱内孔不能作为滚针保持架组件的滚道. 轴承和轴承座必须采用过盈配合安装.
- 冲压外圈滚针轴承一般没有内圈.
实心套圈滚针轴承
- 作品: 一个或两个套圈和一个带保持架的滚针组.
分类: 可分为带内圈或不带内圈的轴承.
特征: 实心套圈滚针轴承体积更小，承载能力更高. - 适用场所: 实心套圈滚针轴承可满足轻量化要求, 占用空间小，发射功率大.
组合滚针轴承
- 组合: 滚针轴承是由向心滚针轴承和推力轴承部件组成的轴承单元.
- 特征: 结构紧凑, 体积小, 高旋转精度, 能承受一定的轴向负荷，同时承受较高的径向负荷. 产品结构多样, 适应性强且易于安装.
- 应用: 用于机床等各种机械设备, 冶金机械, 纺织机械和印刷机械, 并且可以使机械系统设计非常紧凑和灵巧.
Use of needle roller bearing
- Needle roller bearings have been around for more than 60 年, but with the general trend towards reducing weight, space and energy consumption, they have become the bearings of choice for many important applications.
- Needle roller bearings are most commonly used in automotive, agricultural and construction components, including compressors, transmissions, 变速箱, 泵, torque converters, suspensions, U-joints and rocker arm pivots. They are also found in household appliances such as portable power tools, pump clutches and spindles.
- Needle roller bearings are a good choice if you need lightweight, cost-effective and compact components to solve any friction problems. For more information on needle roller bearing types, needle bearing size, needle bearing price and what suits your unique application, call our helpful team today!
船运 & 滚针轴承包装
装运港: Qingdao/Tianjin
供应能力: 100,000 每月件数
包裹：
- 塑料袋 + 单箱 + 纸盒 + 胶合板托盘
- 中性工业包装 + 中性纸盒包装 + 托盘
- 根据客户要求
工厂及仓库展示
We stock all major brands of bearings, 包含：SKF needle bearing,INA needle bearing;NTN needle bearing;IKO needle bearing;schaeffler needle roller bearing;koyo roller bearing;timken needle bearings.We also supply custom needle bearings.If you want to buy needle bearings, please contact us, we will use the highest quality needle roller bearing material and provide you with the best needle roller bearing price
needle bearings for sale
博客
常问问题
由于其内部设计, 滚珠轴承通常不能分解到组件级别; 所以, 它们通常不能翻新.
实心底壳在制造时没有空腔和填充物; 它们比空心底座更坚固, 并且没有细菌和真菌生长的陷阱. 在热塑性外壳中, 坚固的底座在蒸汽或高压清洗下不会破裂. 中空底座节省材料和重量以降低成本. 有人用环氧树脂回填空心底座，杜绝细菌滋生的陷阱, 但这不会增加强度, 会导致安装面不平整, 水会渗入外壳和填充材料之间, 导致开裂.
使用特别热稳定的轴承套圈, 更大的内部游隙 (C4), 高温下不会分解的特选润滑剂, 和锌阳极化挡油环. 我们的高温轴承有两个基本版本. 后缀 “C4HR5” 代表可以承受 400°F 的轴承, 和后缀 “C4HR23” 代表可以承受 450°F 的轴承.
适用于纸浆和纸张加工等关键应用, 印刷包装, 由于扭矩和振动过大，材料撕裂会导致昂贵的停机时间.
影响轴承启动和运转扭矩的两个最大因素是密封设计和润滑剂选择. 轴与轴承座配合, 组件精度和表面光洁度, 和保持器的设计也有一定的影响.
在更高速度的应用中, 通常需要非接触式密封装置来最小化操作扭矩和热量产生, 所以通常需要挡油环和二次密封装置. 流动油润滑系统通常是最好的解决方案.
正确安装后, 大多数带座轴承只需要定期用少量润滑脂重新润滑并检查以确保它们在低温下运行, 寂静, 和足够的准确性.
这取决于许多因素, 例如应用程序的负载条件, 运行速度, 占空比, 温度, 和运行环境. 本网站的技术信息部分提供了一些基本信息. 我们的工程师可以帮助您确定更具体的理论寿命计算.
当噪音和/或工作温度升高或工作精度降低时, 应更换轴承.
首选润滑剂
润滑接头类型或位置
密封材料和设计选项
方面, 适用于外壳或插入
固定螺丝选项
将外壳涂成任何颜色
润滑剂过少或过多
润滑剂类型不正确
轴承安装不良
内部间隙不当
负载和/或速度过大
极端温度
污染
安装面之间的移动
轴承发出的噪音可能是由一种或多种因素共同引起的, 如工作间隙不足, 工作间隙过大, 工作间隙因温度而变化, 接触区域损坏, 污染, 润滑剂不当或滚道损坏.
润滑油对轴承有五种基本功能:
减少摩擦
减少磨损
降低温升
最大限度地减少腐蚀
密封污染物
我们不建议混合润滑脂. 混合不相容的润滑脂会导致混合物变硬, 防止它释放任何油. 混合不相容的润滑脂也会软化混合物, 释放所有的油. 在任一情况下, 混合物将无法正确润滑轴承. 我们强烈建议使用与轴承最初提供的相同类型的润滑脂.
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