HIWIN linear bearing is the most linear rail carriage which is used on all cnc wood router machines, includes wood router basic machine, auto tool changing cnc router, multi spindle cnc router, nesting cnc router and cnc foam milling machine. Besides HIWIN, PMI and CSK are another two popular brands also.
HIWIN, PMI and CSK all is from Taiwan.
Linear Carriage Type:
There are two types of blocks: flange and square. The flange type
block is better for heavy moment load application than square type
because of the lower assembly height and wider mounting surface.
That’s why flange type linear bearing is usually used on Y-axis of multi-spindle cnc router machines
like 8 spindles and 12 spindles cnc router.
Advantage and Features of Linear Guide
1) High positional accuracy, high repeatability, high motion
2) High speed motion is possible with a low driving force
3) Easy installation
4) Easy lubrication
5) High rigidity with four-way load design
6) Interchangeability- Linear guideways can be easily replaced
should any damage occur.
The series HG is the correct one suitable for cnc wood router
machines. HG means heavy load ball type.
Features of HG series
1) Self-aligning capacity
2) By design, the circle-arc groove has contact points at 45
degrees. HG series can absorb most installation errors due to
surface irregularities and provide smooth linear motion through the
elastic deformation of rolling elements and the shift of contact
points. Self-aligning capability, high accuracy and smooth
operation can be obtained with an easy installation.
4) High rigidity in all four directions
Here is construction diagram of HIWIN carriage HG series
Available model of HIWIN block HG series are:
HGH15CA HGH20CA HGH25CA HGH30CA HGH35CA HGH45CA HGH55CA HGH65CA
HGL15CA HGL25CA HGL30CA HGL35CA HGL45CA HGL55CA
HGL25HA HGL30HA HGL35HA HGL45HA HGL55HA
HGW15CA HGW20CA HGW25CA HGW30CA HGW35CA HGW45CA HGW55CA HGW65CA
HGW15CC HGW20CC HGW25CC HGW30CC HGW35CC HGW45CC HGW55CC HGW65CC
HGW15CB HGW20CB HGW25CB HGW30CB HGW35CB HGW45CB HGW55CB HGW65CB
HGH20HA HGH25HA HGH30HA HGH35HA HGH45HA HGH55HA HGH65HA
HGW20HC HGW25HC HGW30HC HGW35HC HGW45HC HGW55HC HGW65HC
HGW20HB HGW25HB HGW30HB HGW35HB HGW45HB HGW55HB HGW65HB
HGW20HA HGW25HA HGW30HA HGW35HA HGW45HA HGW55HA HGW65HA
Model explanation of HIWIN carriage HG series
PMI Linear Bearings
The series MSA is the one suitable for cnc wood router machines.
MSA means full ball heavy load ball type.
Features of MSA series
1) High rigidity, four-way equal load
2) Smooth movement with low noise
3) Self-alignment capacity
Here is construction diagram of PMI bearings MSA series
Available model of PMI carriage MSA series
MSA15E MSA20E MSA20LE MSA25E MSA25LE MSA30E MSA30LE MSA35E MSA35LE
MSA45E MSA45LE MSA55E
MSA55LE MSA65E MSA65LE
MSA15A MSA20A MSA20LA MSA25A MSA25LA MSA30A MSA30LA MSA35A MSA35LA
MSA45A MSA45LA MSA55A