ISUTAMI BEARINGS
en
Importance of imported spindle bearings
ISUTAMI BEARINGS

Importance of imported spindle bearings

The high-precision products in the imported bearing series mainly include angular contact screw bearings and angular contact spindle bearings. The sales volume of these two types of bearings is the highest among high-precision products. These two types of products are used in the high-precision machine tool spindles, with stable performance, high speed and high precision, and are also favored by the Chinese machine tool industry.

When purchasing imported high-precision lead screws and spindle bearings, the first thing to pay attention to is the accuracy of the bearings, such as NSK bearings. In general, the most accurate use is P5 and P4. Special equipment will involve P2 precision products, but P2 precision bearings need to be ordered by the manufacturer. The ranks of the grades from high to low are P2, P4, and P5. This is what buyers should pay attention to, not the greater the number, the higher the accuracy. The main shaft of the metal cutting machine with high precision and high rigidity requires many double-row short cylindrical roller bearings, followed by tapered roller bearings. These three types of bearings are the most demanding grades. 

NSK screw bearings are most commonly used in TAC series bearings, such as imported bearings. Although there is no grade requirement for such bearings, the bearing accuracy is up to the P4 international standard. Because the lead screw is a high-precision accessory, the low-grade imported bearing cannot meet its use. This is what the buyer needs to know. Ask the supplier about the bearing accuracy. The main bearings are mainly SULP4/P5, DULP4/P5 and DBLP4/P5. The first two are free-pairing products. The latter one is a back-to-back matching product. Bearing matching requirements must be noted. Otherwise, bearing products are not applicable.
Related News
  • Problems and trends in the bearing manufacturing industry

    Problems and trends in the bearing manufacturing industry

    August 10, 2019Grinding is the core means of the bearing manufacturing industry. It occupies the main production time and cost. The quality of grinding and productivity are related to the success of bearing companie...view
  • How a  ball screw works

    How a ball screw works

    March 8, 2019The Ball Screw AssemblyThe ball screw assembly consists of a screw and a nut, each with matching helical grooves, and balls which roll between these grooves providing the only contact between the nut ...view
  • Stainless housings and expanded mounted bearing choices

    Stainless housings and expanded mounted bearing choices

    April 12, 2019BY MIKE SANTORAWe has expanded its solution mounted plane and ball bearings, adding production and machined stainless steel housing in a wide price range, with capabilities for applications in all are...view
  • The difference between linear bearing and sliding plain bearing

    The difference between linear bearing and sliding plain bearing

    November 9, 2019Sliding bearing, in short, is a bearing in which the journal and the bearing bush work under sliding friction. The sliding bearing works smoothly, reliably and without noise. The rolling bearing we ge...view
  • How to identify the quality of rolling bearings?

    How to identify the quality of rolling bearings?

    July 28, 2019(1) Identification of radial ball bearingsFor a radial ball bearing with normal technical state, the inner and outer ring raceways shall be free of flaking and severe wear marks, and shall be a bright...view
  • How to protect your bearing investment

    How to protect your bearing investment

    October 6, 2019Inspection and maintenance are important to maintain performance, extend service life, avoid downtime, and promote total cost of ownership.Bearing inspection and maintenance are important not only to ...view
  • TEL:+86-574-6399-8066
  • FAX:+86-574-6399 8025
  • EMAIL: sales@isutami.com
  • ADDRESS:No.500, North 3rd Ring Road West, Cixi, Ningbo, 315300, China