HG Series
HG Series Heavy Load Ball Type Linear Guideway
- Block Type
- Square (H, L), Flange (W)
- Model Size
- 15 - 65
- Load Type
- Medium, Heavy, Super Heavy
- Dynamic Load Rating
- 14.7 [kN] - 277.8 [kN]
HG series linear guideways are designed with load capacity and rigidity higher than comparable products, through a circular-arc groove and structural optimization. Equal load ratings in the radial, reverse radial and lateral directions and a self-aligning action that absorbs installation error give long life with high speed, high accuracy and smooth linear motion. The HG and QH series are interchangeable.
HG shares identical rails with the QH Series: QH blocks drop onto an existing HG axis for quiet SynchMotion running, no redesign required. View QH Series →
Applications
- Machining centers
- NC lathes
- Grinding machines
- Heavy cutting machines
- Automation devices
- Transport and measuring equipment
Variants
Square (HGH) is the standard block. HGL is the low-profile square, assembling to the same height as the flange type. Flange (HGW) blocks sit lower and bolt from the top or the bottom, for mounting where you can’t reach through the block. The last letter of a flange model is its mounting: A from the top, B from the bottom, C either way.
| Part Number | Block Type | Model Size (mm) | Load Type | Dynamic Load Rating (kN) | Configure |
|---|---|---|---|---|---|
| HGH15CA | Square | 15 | Heavy | 14.7 | Configure ↗ |
| HGH20SA | Square | 20 | Medium | 16.25 | Configure ↗ |
| HGH20CA | Square | 20 | Heavy | 27.1 | Configure ↗ |
| HGH20HA | Square | 20 | Super Heavy | 32.7 | Configure ↗ |
| HGH25CA | Square | 25 | Heavy | 34.9 | Configure ↗ |
| HGH25HA | Square | 25 | Super Heavy | 42.2 | Configure ↗ |
| HGH30CA | Square | 30 | Heavy | 48.5 | Configure ↗ |
| HGH30HA | Square | 30 | Super Heavy | 58.6 | Configure ↗ |
| HGH35CA | Square | 35 | Heavy | 64.6 | Configure ↗ |
| HGH35HA | Square | 35 | Super Heavy | 77.9 | Configure ↗ |
| HGH45CA | Square | 45 | Heavy | 103.8 | Configure ↗ |
| HGH45HA | Square | 45 | Super Heavy | 125.3 | Configure ↗ |
| HGH55CA | Square | 55 | Heavy | 153.2 | Configure ↗ |
| HGH55HA | Square | 55 | Super Heavy | 184.9 | Configure ↗ |
| HGH65CA | Square | 65 | Heavy | 213.2 | Configure ↗ |
| HGH65HA | Square | 65 | Super Heavy | 277.8 | Configure ↗ |
| HGL15CA | Square (low) | 15 | Heavy | 14.7 | Configure ↗ |
| HGL25SA | Square (low) | 25 | Medium | 26.27 | Configure ↗ |
| HGL25CA | Square (low) | 25 | Heavy | 34.9 | Configure ↗ |
| HGL25HA | Square (low) | 25 | Super Heavy | 42.2 | Configure ↗ |
| HGL30CA | Square (low) | 30 | Heavy | 48.5 | Configure ↗ |
| HGL30HA | Square (low) | 30 | Super Heavy | 58.6 | Configure ↗ |
| HGL35CA | Square (low) | 35 | Heavy | 64.6 | Configure ↗ |
| HGL35HA | Square (low) | 35 | Super Heavy | 77.9 | Configure ↗ |
| HGL45CA | Square (low) | 45 | Heavy | 103.8 | Configure ↗ |
| HGL45HA | Square (low) | 45 | Super Heavy | 125.3 | Configure ↗ |
| HGL55CA | Square (low) | 55 | Heavy | 153.2 | Configure ↗ |
| HGL55HA | Square (low) | 55 | Super Heavy | 184.9 | Configure ↗ |
| HGW15CA | Flange (top mount) | 15 | Heavy | 14.7 | Configure ↗ |
| HGW20CA | Flange (top mount) | 20 | Heavy | 27.1 | Configure ↗ |
| HGW20HA | Flange (top mount) | 20 | Super Heavy | 32.7 | Configure ↗ |
| HGW25CA | Flange (top mount) | 25 | Heavy | 34.9 | Configure ↗ |
| HGW25HA | Flange (top mount) | 25 | Super Heavy | 42.2 | Configure ↗ |
| HGW30CA | Flange (top mount) | 30 | Heavy | 48.5 | Configure ↗ |
| HGW30HA | Flange (top mount) | 30 | Super Heavy | 58.6 | Configure ↗ |
| HGW35CA | Flange (top mount) | 35 | Heavy | 64.6 | Configure ↗ |
| HGW35HA | Flange (top mount) | 35 | Super Heavy | 77.9 | Configure ↗ |
| HGW45CA | Flange (top mount) | 45 | Heavy | 103.8 | Configure ↗ |
| HGW45HA | Flange (top mount) | 45 | Super Heavy | 125.3 | Configure ↗ |
| HGW55CA | Flange (top mount) | 55 | Heavy | 153.2 | Configure ↗ |
| HGW55HA | Flange (top mount) | 55 | Super Heavy | 184.9 | Configure ↗ |
| HGW65CA | Flange (top mount) | 65 | Heavy | 213.2 | Configure ↗ |
| HGW65HA | Flange (top mount) | 65 | Super Heavy | 277.8 | Configure ↗ |
| HGW15CB | Flange (bottom mount) | 15 | Heavy | 14.7 | Configure ↗ |
| HGW20CB | Flange (bottom mount) | 20 | Heavy | 27.1 | Configure ↗ |
| HGW20HB | Flange (bottom mount) | 20 | Super Heavy | 32.7 | Configure ↗ |
| HGW25CB | Flange (bottom mount) | 25 | Heavy | 34.9 | Configure ↗ |
| HGW25HB | Flange (bottom mount) | 25 | Super Heavy | 42.2 | Configure ↗ |
| HGW30CB | Flange (bottom mount) | 30 | Heavy | 48.5 | Configure ↗ |
| HGW30HB | Flange (bottom mount) | 30 | Super Heavy | 58.6 | Configure ↗ |
| HGW35CB | Flange (bottom mount) | 35 | Heavy | 64.6 | Configure ↗ |
| HGW35HB | Flange (bottom mount) | 35 | Super Heavy | 77.9 | Configure ↗ |
| HGW45CB | Flange (bottom mount) | 45 | Heavy | 103.8 | Configure ↗ |
| HGW45HB | Flange (bottom mount) | 45 | Super Heavy | 125.3 | Configure ↗ |
| HGW55CB | Flange (bottom mount) | 55 | Heavy | 153.2 | Configure ↗ |
| HGW55HB | Flange (bottom mount) | 55 | Super Heavy | 184.9 | Configure ↗ |
| HGW65CB | Flange (bottom mount) | 65 | Heavy | 213.2 | Configure ↗ |
| HGW65HB | Flange (bottom mount) | 65 | Super Heavy | 277.8 | Configure ↗ |
| HGW15CC | Flange (top or bottom) | 15 | Heavy | 14.7 | Configure ↗ |
| HGW20SC | Flange (top or bottom) | 20 | Medium | 16.25 | Configure ↗ |
| HGW20CC | Flange (top or bottom) | 20 | Heavy | 27.1 | Configure ↗ |
| HGW20HC | Flange (top or bottom) | 20 | Super Heavy | 32.7 | Configure ↗ |
| HGW25SC | Flange (top or bottom) | 25 | Medium | 26.27 | Configure ↗ |
| HGW25CC | Flange (top or bottom) | 25 | Heavy | 34.9 | Configure ↗ |
| HGW25HC | Flange (top or bottom) | 25 | Super Heavy | 42.2 | Configure ↗ |
| HGW30CC | Flange (top or bottom) | 30 | Heavy | 48.5 | Configure ↗ |
| HGW30HC | Flange (top or bottom) | 30 | Super Heavy | 58.6 | Configure ↗ |
| HGW35CC | Flange (top or bottom) | 35 | Heavy | 64.6 | Configure ↗ |
| HGW35HC | Flange (top or bottom) | 35 | Super Heavy | 77.9 | Configure ↗ |
| HGW45CC | Flange (top or bottom) | 45 | Heavy | 103.8 | Configure ↗ |
| HGW45HC | Flange (top or bottom) | 45 | Super Heavy | 125.3 | Configure ↗ |
| HGW55CC | Flange (top or bottom) | 55 | Heavy | 153.2 | Configure ↗ |
| HGW55HC | Flange (top or bottom) | 55 | Super Heavy | 184.9 | Configure ↗ |
| HGW65CC | Flange (top or bottom) | 65 | Heavy | 213.2 | Configure ↗ |
| HGW65HC | Flange (top or bottom) | 65 | Super Heavy | 277.8 | Configure ↗ |
Part numbers & options
How a part number reads
HG W 25 C A E 2 R 1600 E ZA P M II + KK/E2+RC
- HG
- Series
- W
- Block type — W flange · H square · L square (low)
- 25
- Model size — 15, 20, 25, 30, 35, 45, 55, 65
- C
- Load type — S medium · C heavy · H super heavy
- A
- Block mounting — A top · B bottom · C both
- E
- Special block (blank = standard block)
- 2
- Blocks per rail
- R
- Rail mounting — R from top · T from bottom
- 1600
- Rail length (mm)
- E
- Special rail (blank = standard rail)
- ZA
- Preload — Z0 light · ZA medium · ZB heavy
- P
- Precision — C, H, P, SP, UP
- M
- Stainless steel (blank = carbon steel)
- II
- Rails per axis
- KK
- Dust protection — ZZ, KK, DD (blank = standard seals)
- E2
- E2 self-lubricant · SE metallic end cap
- RC
- Reinforced cap
The configurator assembles this number for you, with drawings and 3D CAD. Configure ↗
Accuracy classes
Five classes, chosen from the accuracy of the applied equipment.
- C Normal — General transport and automation
- H High — The workhorse class for most machines
- P Precision — Precision measurement and semiconductor
- SP Super precision — High-accuracy machine tools
- UP Ultra precision — The tightest running parallelism
Preload
Oversized balls preload the block against the rail; rigidity roughly doubles versus an unpreloaded guideway. Keep preload at ZA or lighter below size 20.
- Z0 Light — Set load direction, low impact: transport devices, packing machines, welders
- ZA Medium — High precision: EDM, NC lathes, precision X-Y tables, measuring equipment
- ZB Heavy — High rigidity with vibration and impact: machining centers, grinding, heavy cutting
Dust protection
Seal packages appended to the model number.
- — Standard — End seal + bottom seal
- ZZ Scraper — End seal, bottom seal + scraper
- DD Double seals — Double seals + bottom seal
- KK Full package — Double seals, bottom seal + scraper
Material
- — Carbon steel — Standard
- M Stainless steel — Available for HG15C, HG20C, HG25C
Other Linear Guideways
How buying works
Spec it in the configurator: drawings, 3D CAD, and a quote to follow.
HIWIN series are configured to your application, not bought off the shelf. Start from your loads and speeds if you are still choosing a size.
Rather talk it through? Request a quote from an application engineer.