Use and performance linear guide bearing
First, the use and performance of linear guide bearings
The bearings used in a variety of linear motion guides. Such as the special equipment and instrumentation linear motion guide a variety of CNC, combined machine tools, light industry, textile machinery, electronics, aerospace and scientific research and other departments. To replace the original rolling friction sliding friction.
This product is a rolling bearing element to the sliding friction into rolling line can be friction. Reduced coefficient of friction to about 0.003-0.004, thus greatly saving energy, improving mechanical efficiency. The right to use the linear motion mechanism to minimize the negative force, making it light and flexible.
This product has a large carrying capacity, right to use, long life, easy disassembly advantages. Since the rolling body supporting plate movement around an endless loop, so that the linear motion from the support is not limited.
This product can achieve different accuracy requirements, using packet assembly, precision can reach 2um.
Second, think of linear guides support the selection of reference
1 and rolling element bearing touching this guide thought plane, in addition to meeting ,, flatness straightness accuracy requirements, should also have less high hardness (HRC58-64), hardening depth of not less than 0.6mm.
Two branches of the right to use residence life, according to the level of load size and movement varies with the degree, the selection can refer to the following formula:
Lh = 833 * 1S-N- (C / P) *
Lh- amount regularly lifetime (hours)
S- rail-way movement amount (M)
N- frequency reciprocating rail support, two-way to one (beats / min)
C- supporting the rated load (kgf)
P- bearing equivalent load (kgf
- Life Index (= 10/3)
3 When the move with a pre-load, dynamic rigidity of the system can be improved to enhance the anti-jamming capability. Working preload size, according to the system requirements to adjust. Such as the use of the total value to measure the deformation, the degree of preload can be selected within the range 0.01-0.04mm.
