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江苏INA轴承主轴轻载的标准化公式 来源:御狮轴承   点击:次   日期:2018-06-30 21:37

 

 主轴江苏INA轴承安装在机床上,用于切削有色金属或轻切削。轴承结构为第一23角接触轴承的组合结构。由于CBN或其它硬质合金刀具的高速,可以获得高的工件粗糙度和真正的圆度。这种江苏INA轴承主轴在华南机床制造领域非常普遍,数控车床超过98%台。

Spindle Jiangsu INA bearings are mounted on machine tools for cutting non-ferrous metals or light cutting. The bearing structure is a combined structure of the first 23 angular contact bearings. Because of the high speed of CBN or other carbide tools, high workpiece roughness and true roundness can be obtained. This kind of Jiangsu INA bearing spindle is very common in the manufacturing field of Southern China machine tool, and there are more than 98% CNC lathes.

为了满足江苏INA轴承主轴的高速运转,主轴轴承结构中的载荷主要与轻载或超轻预载相匹配。值得一提的是,与进口品牌产品相比,国产轴承预紧标准是进口产品的几倍,比进口产品高出十倍甚至几十倍,这与一国工业的实施标准有关。

In order to meet the high speed operation of the INA bearing spindle in Jiangsu, the load in the main bearing structure is mainly matched with the light load or ultra light preload. It is worth mentioning that, compared with the imported brand products, domestic bearing pretightening standards are several times as many as imported products, ten times or even dozens times higher than those of imported products, which is related to the implementation standards of a country's industry.

这也是主轴江苏INA轴承和进口产品中不使用高速轴承的主要原因。当然,从一定的角度来看,国产轴承的相对轴向刚度优于进口轴承,但在高速特性的应用方面却失去了很大的市场。

This is also the main reason that the spindle INA bearings and imported products in Jiangsu do not use high-speed bearings。 Of course, from a certain point of view, the relative axial stiffness of the domestic bearing is superior to the imported bearing, but it has lost a large market in the application of high speed characteristics。

通常,在江苏INA轴承接触角的选择中,可以通过增加接触角来适当地增大主轴轴承的轴向刚度系数。目前,最常用的进口产品是接触角为15度、25度和18度。接触角越大,轴向刚度越大。相反,接触角越大,高速指数越低,额定负载指数越低。

Usually, in the selection of contact angle of INA bearings in Jiangsu, the axial stiffness coefficient of spindle bearings can be appropriately increased by increasing contact angle. At present, the most commonly used products are contact angles of 15 degrees, 25 degrees and 18 degrees. The greater the contact angle, the greater the axial stiffness. On the contrary, the larger the contact angle, the lower the high speed index and the lower the rated load index.

在实际应用中,根据江苏INA轴承内径计算标准角接触球轴承,工作线数达到2025m/s。钢球直径越小,同规格产品的速度指数越高。

In practical application, according to the calculation standard of the INA bearing inner diameter in Jiangsu, the number of working lines reaches 20 ~ 25m/s。 The smaller the diameter of the steel ball is, the higher the speed index of the same specification product is。

 

文章来自:江苏SKF轴承 www.wh-skf.com

The article comes from: Jiangsu SKF bearing www。wh-skf。com

文章来自:江苏INA轴承 www.xzahg.com

The article comes from: Jiangsu INA bearing www。ina-china。cn

文章来自:江苏NSK轴承 www.klbbearings.com

The article comes from: Jiangsu NSK bearing www.klbbearings.com

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