HGW20CC Flange Linear Guide Block — 20 mm, Interchangeable
The HGW20CC is a 20 mm flange-type block, the standard choice for machine-tool carriages that bolt from above and below. It runs on the HGR20 rail with HG-standard mounting. Interchangeable supply covers Z0/ZA preload and C/H/P accuracy.
Specifications
| Model | HGW20CC |
| Size | 20 mm |
| Block type | Flange, heavy load (C) |
| Mounting | Top and bottom tapped (C) |
| Accuracy grade | C / H / P (interchangeable) |
| Preload | Z0 / ZA (interchangeable) |
| Matching rail | HGR20 |
| Dynamic load C (kN) | 17.75 |
| Static load C0 (kN) | 37.84 |
| Block height H (mm) | 30 |
| Block width W (mm) | 63 |
| Block length L (mm) | 77.5 |
Complete dimension table (mm) — HGW20CC
| H | 30 |
| H1 | 4.6 |
| N | 21.5 |
| W | 63 |
| B | 53 |
| B1 | 5 |
| C block length | 40 |
| L1 | 50.5 |
| L | 77.5 |
| K1 | 10.25 |
| G | 12 |
| M | M6 |
| T | 8 |
| T1 | 10 |
| T2 | 9.5 |
| H2 | 6 |
| H3 | 7 |
| Wr | 20 |
| Hr | 17.5 |
| D | 9.5 |
| h | 8.5 |
| d | 6 |
| P | 60 |
| E | 20 |
| Rail bolt | M5x16 |
| Dynamic C | 17.75 kN |
| Static C0 | 37.84 kN |
| MR | 0.38 kN-m |
| MP | 0.27 kN-m |
| MY | 0.27 kN-m |
| Block weight | 0.40 kg |
| Rail weight | 2.21 kg/m |
Transcribed from the current product catalogue. 2D drawing and STEP model on request.
Options
- Dust protection codes: ZZ / KK / DD (standard series)
- Heavy-duty dust codes SH / ZH / KH / DH (HG20–45 only)
- Grease nipple or oil port
- Special machining on request
Where this block is used
The flange body spreads the bolt pattern wider than a square block on the same rail, which helps when the carriage plate is thin or the load sits away from the rail centreline. Typical use is machine-tool tables, gantry beams and automation carriages that are bolted from both above and below.
Mounting: rails and blocks are bolted to machined faces. Rail bolts are tightened from the centre outwards in the sequence given in the catalogue, and running accuracy is checked with a dial gauge before the carriage is loaded. Lubrication is by grease nipple or oil port; the re-greasing interval follows load and duty cycle, so it is agreed with the customer rather than fixed on the datasheet.
Matching rail
HGR20 rail is cut to order from 100 mm. See rail options.
Downloads
STEP (AP214) model and 2D drawing for this size are available on request — ask us and we will email them.
FAQ
| Is HGW20CC interchangeable with HGH20CA? | They share the same HGR20 rail, but the block bodies differ: HGW is flange type, HGH is square type. |
| Can the block and rail be bought separately? | Yes, in Z0/ZA preload and C/H/P accuracy. SP/UP accuracy and ZB preload are supplied as a matched set only. |
| Which rail length do I need? | Use L = (n − 1) × P + 2 × E with P = 60 mm and E = 20 mm for HGR20. |