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GZD Roller guide block
yi gong
GZD roller guide block
1. Product description
● reciprocating movement frequency is high, can reduce the weight of the whole machine and transmission mechanism and power costs.
● Roller guide block for high sensitivity and high performance of flat linear motion. In the case of heavy load or variable load, the elastic deformation is small
● Roller guide block because of its rolling body - roller in the rolling guide good, can automatically centering, so it can improve the positioning accuracy of the machine.
● Rollers in the roller guide block circulate in the matrix, so the rolling guide block is used, which is not limited by the length of the machine bed, and the number of guide blocks can be determined according to the bearing size and selection specifications.
● Roller guide block has a wide range of applications, small specifications can be used in molds, instruments and other linear moving parts, large specifications can be used for heavy machine tools, precision instruments flat linear motion, especially suitable for NC, CNC machine tools
%1. Basic structure
The roller guide block is mainly composed of a slide block, a roller and a returner.The roller moves in an infinite cycle in a hardened and finely ground slider.In order to prevent the roller from falling off from the slider, the roller is designed as a step roller, and the slider is designed with a special card slot, so that the roller has an automatic centering function and does not deviate during movement, which is conducive to flexible movement under the action of load and long service life.
3. Accuracy
The accuracy of the roller guide block is mainly determined by the height of the guide block. For multiple roller guide blocks used in the same plane, in order to obtain a balanced load distribution, the height and size of the roller guide blocks in the same group must be ensured. Generally, the height deviation ranges from 0 to -10μm. The height and size variation of the paired roller guide block is shown
Precision class | Allowable error of height dimension H | The variation of height size H in the same group |
2 | 0~10 | 2 |
3 | 3 | |
4 | 5 | |
5 | 10 |
Preci- sion class | 2 | 3 | 4 | 5 | ||||
Class num- ber- ing | Height devia- tion | Class num- ber- ing | Height devia- tion | Class num- ber- ing | Height devia- tion | Class num- ber- ing | Height devia- tion | |
Preci- sion | B2 | 0~2 | C3 | 0~3 | D5 | 0~5 | - | 0~10 |
B4 | -2~4 | C6 | -3~6 | D10 | -5~10 | |||
B6 | -4~6 | C9 | -6~9 | |||||
B8 | -6~8 | |||||||
B10 | -8~10 | |||||||
Model number | Overall length | Slider length | Breadth | Altitude | Mounting hole diameter | Center distance of mounting holes | Dynamic load rating | Static load rating | weight(kg) | |
L | Ls | W | H | d×D×h | A | B | C(kN) | C0(kN) | Sliders/one | |
GZD15×53 | 52.8 | 33.1 | 26.5 | 15 | 3.4×6×4 | 19 | 19.3 | 23.0 | 29.0 | 0.12 |
GZD20×70 | 70 | 45.3 | 30 | 20 | 3.6×6×4 | 26 | 23 | 38.3 | 53.4 | 0.25 |
GZD30×123 | 123 | 87 | 40 | 30 | 4.5×8.5×5 | 58 | 30 | 63.5 | 72.3 | 0.92 |
GZD40×132 | 132 | 80.1 | 51.4 | 40 | 5.5×10×6 | 50.8 | 41.5 | 89.1 | 121 | 1.7 |
