HIWIN linear bearing is the most linear rail carriage which is used on all cnc wood router machines, includes wood router basic machine, atc 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 accuracy

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.

HIWIN Block

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.

3) Interchangeability

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

4) Interchangeability

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 
MSA55LA MSA65A MSA65LA
MSA15S MSA20S MSA20LS MSA25S MSA25LS MSA30S MSA30LS MSA35S MSA35LS MSA45S MSA45LS MSA45LAMSA55S 
MSA55LS MSA65S MSA65LS

Model explanation of PMI linear bearings MSA series
 

CSK Bearing

Available model of CSK bearing

LMG15C LMG20C LMG25C LMG30C LMG35C LMG45C LMG20LC LMG25LC LMG30LC LMG35LC LMG45LC
LMG15H LMG20H LMG25H LMG25V LMG25LV LMG30H LMG35H LMG45H LMG20LH LMG25LH LMG30LH LMG35LH LMG45LH
LMG15T LMG15ST LMG20T LMG20ST LMG25T LMG25ST LMG30T LMG30LT

Please Note: Above models are the most common models of linear carriage, we can supply as per your specific request also.

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