7412BCBM printing equipment bearing

      Super precision angular contact ball bearings are common, but not limited to, machine tool applications. For machine tools, depending on the type of intended purpose, there may be different requirements for the spindle bearing configuration. Lathe spindles, for example, are typically used to cut metal at relatively low speeds. Depth of cut and feed rate are usually pushed to the limit. A high degree of rigidity and high load carrying capacity are important business requirements.

      When higher speed requirements are higher, as is the case for high-speed machining center milling and grinding applications, there is usually a compromise between stiffness and load-carrying capacity. In these high-speed applications, controlled bearing heat generation is an additional challenge.

      For any precision application, there are individual arrangements that provide a combination of rigidity, load carrying capacity, heat generation and bearing life.

Knife holder set

When the space is limited and the load is relatively light, in the case of a tool holder sleeve, two matching super-precision angular contact ball bearing pair bearing sleeves, such as: 71801ACD/P4DBB (SEA127CE3 Fagushan), are suitable.

multi-spindle drill

For multi-spindle drills, where radial and axial space-limited stiffness is very important, super-precision angular contact ball bearings are paired in four sets (arranged back-to-back and in tandem), for example 71802ACD/P4QBTA (SEA157CE33TD27, 2DaN), mounted There are precision-matched spacer ring sets that can be used.

Grinding Head Holder

In grinding workpiece boxes, where rigidity is important and available space is limited, sets of two super-precision angular contact ball bearings, such as the 71824ACD/P4DBB (SEA1207CE3 Drum Shan), are suitable.

lathe spindle

For lathe spindles with large diameters of steel bars, super-precision angular contact ball bearings paired with bearings as a set of five, for example: 71818ACD/P4PBCB (SEA907CE33TDT45DaN), fitted with precision-matched spacer rings to provide good rigidity, are used.