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Description
- For mounting from above
- With shafts made of corrosion-resistant steel as per DIN EN ISO 683-17 / EN 10088
Product description
Rexroth cam roller guides were specially developed for handling and automation technology.
Product overview
Technical data
Technical data
| Size | 20 | |
| Temperature stability | -20 °C ... +80 °C | |
| Weight | kg/m | 1.1 |
Accuracy
Dimensions

| 1) | Shown rotated through 90°. Mounting hole pattern not to scale. |
Dimensions
| Size | 20 | |
| A | mm | 17 |
| A1 | mm | 33 |
| D | mm | 9.4 |
| H | mm | 18 |
| H1 | mm | 3.4 |
| H2 | mm | 15 |
| S1 | mm | 4 |
| S2 | mm | 6 |
| L 1) | mm | 3500 |
| Lmax | mm | 7000 |
| T | mm | 62.5 |
| T1S | mm | 29.25 |
| T1 min | mm | 13 |
| 1) | Guide tracks up to 3500 mm are made of one-piece precision steel shafts. |

Surface characteristic values of the guide rails
| Size | 20 | ||
| A | mm² | 360 | |
| ey | mm | 7 | |
| ly | mm⁴ | 8604 | |
| lz | mm⁴ | 42000 | |
| Wy | 782 mm³ | 782 mm² | |
| Wz | 2545 mm³ | 2545 mm² | |
Legende
| Symbol | Description | Unit |
| A | Cross-sectional area | mm2 |
| ey | Centroid distance | mm |
| ly | Second moment of area, y-axis | mm4 |
| lz | Second moment of area, z-axis | mm4 |
| L | Standard length | mm |
| Lmax | Maximum length | mm |
| T1S | Preferred dimension | mm |
| T1 min | Minimum distance | mm |
| Wy | Section modulus, y-axis | mm3 |
| Wz | Section modulus, z-axis | mm3 |
Mounting
Notes for mounting
Accessories
Plastic mounting hole plugs for Cam Roller Guides
R1605 .0

Plastic mounting hole plugs for Cam Roller Guides
R1605 .0
Ordering codes
Material numbers
| Size | Part number | CAD data | Buy | Holes |
| 20 | R192301931 | without holes | ||
| R192311931 | with holes |
Overview - recommended rail lengths
| Size -Version | Hole spacing T | Holes/rail length L | |||
| mm | mm | Number/mm | |||
| 20 | 62,5 | 2/121 | 10/621 | 18/1121 | 40/2496 |
| 4/246 | 12/746 | 20/1246 | 50/3125 | ||
| 6/371 | 14/871 | 24/1496 | 56/3496 | ||
| 8/496 | 16/996 | 30/1871 | |||
Ordering a guide rail

Calculating the rail length
Recommendation:
Preferred dimension T1S fan
- Take minimum distance T1min into account! (see dimensions)
- T1 is the same on both rails.

Ordering example:
- Size 20
- Desired length: 620 to 625 mm
- nB = 620/T = 620/62.5 = 9.92 rounded (whole numbers) = 10 bores
- nT = nB - 1 = 9
- Rail length (L) to be ordered:
- L = 10 · 62.5 - 4 = 621 mm or
- L = 9 · 62.5 + 2 · 29.25 = 621 mm
- L = 10 · 62.5 - 4 = 621 mm or
Guide rail:
R192311931, 621, 29.25 / 9 x 62.5 / 29.25
Material number, length (mm)1 / nT x T / T1 (mm)
Legende
| Symbol | Description | Unit |
| L | Rail length | mm |
| T | Hole spacing | mm |
| T1S | Preferred dimension | mm |
| nB | Number of holes | |
| nT | Number of hole spaces |
Downloads
| Profiled rail systems Manual | R320103885_EN | 2016-09-01 | English | PDF | 11.5MB Product Groups: Linear guides | |
| Cam Roller Guides Catalog | R999000486 | 2018-12-01 | English | PDF | 3.3MB Product Groups: Cam Roller Guides |























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