Артикул: RX8731
В наличии
Standard cam roller guide rails R1921
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Description
- For mounting from above
- Optional mounting hole plugs
- With secured shafts made of corrosion-resistant steel as per DIN EN ISO 683-17 / EN 10088
- Rail body made of aluminum (anodized)
- Secured guide tracks made of corrosion-resistant precision steel shafts
Product description
Rexroth cam roller guides were specially developed for handling and automation technology.
| 1) | Size 42 |
Product overview
Technical data
Technical data
| Size | 20 | 25 | 32 | 32-2 | 42 | 52 | 52-2 | 52-4 | |
| Temperature stability | -20 °C ... +80 °C | ||||||||
| Weight | kg/m | 0.6 | 1 | 1.6 | 2.68 | 4.4 | |||
Accuracy
Dimensions
| 1) | Size 42 |
| 2) | Shown rotated through 90°. Mounting hole pattern not to scale. |
Dimensions
| Size | 20 | 25 | 32 | 32-2 | 42 | 52 | 52-2 | 52-4 | |
| A | mm | 20 | 25 | 32 | 42 | 52 | |||
| A1 | mm | 17 | 21 | 24 | 28 | 40 | |||
| D | mm | 9.4 | 11 | 15 | 20 | 24 | |||
| H | mm | 12 | 15 | 20 | 34 | ||||
| H1 | mm | 5 | 6 | 9.5 | 9 | 19 | 17 | ||
| H2 | mm | 9 | 10.6 | 15 | 12.6 | 25.1 | |||
| S1 | mm | 4.5 | 5.5 | 6.5 | 9 | 11 | 13 | ||
| S2 | mm | 4 | 6 | 10 | |||||
| L 1) | mm | 3500 | |||||||
| Lmax | mm | 7000 | |||||||
| T | mm | 62.5 | 125 | 62.5 | 125 | 250 | 125 | 62.5 | |
| T1S | mm | 29.25 | 60.5 | 29.25 | 60.5 | 123 | 60.5 | 29.25 | |
| T1 min | mm | 13 | 20 | ||||||
| 1) | Guide tracks up to 3500 mm are made of one-piece precision steel shafts. |
Surface characteristic values of the guide rails
| Size | 20 | 25 | 32 | 32-2 | 42 | 52 | 52-2 | 52-4 | |
| A | mm² | 168 | 244 | 435 | 685 | 1222 | |||
| ey | mm | 6 | 7.4 | 10.4 | 11.4 | 17.6 | |||
| ly | mm⁴ | 2060 | 4738 | 14551 | 19628 | 117945 | |||
| lz | mm⁴ | 3090 | 6432 | 19272 | 78534 | 148971 | |||
| Wy | mm³ | 343 | 623 | 1399 | 1722 | 6701 | |||
| Wz | mm³ | 364 | 613 | 1357 | 4363 | 6477 | |||
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 .00 .0
Plastic mounting hole plugs for Cam Roller Guides
R1605 .00 .0
Fixed stop
R19105..00
Fixed stop
R19105..00
- The fixed stop can be used on the guide rails R1921 (standard), R1922 (with slot) and R1924 (flat).
Cam roller with eccentric spigot
R1900….0
Cam roller with eccentric spigot
R1900….0
- For mounting customer-built table parts, with central and eccentric spigots for zero-clearance adjustment to the guide rail.
- For applications where the versatile standard range does not offer the optimum solution to your specific problem.
Cam roller with central spigot
R1900….1
Cam roller with central spigot
R1900….1
- For mounting customer-built table parts, with central and eccentric spigots for zero-clearance adjustment to the guide rail.
- For applications where the versatile standard range does not offer the optimum solution to your specific problem.
Ordering codes
Material numbers
| Size | Part number | CAD data | Buy | Holes | Holes per meter |
| 20 | R192101931 | without holes | - | ||
| R192111931 | with holes | 16 1) | |||
| 25 | R192102531 | without holes | - | ||
| R192112531 | with holes | 16 1) | |||
| 32 | R192103231 | without holes | - | ||
| R192113231 | with holes | 8 1) | |||
| 32-2 | R192123231 | 16 1) | |||
| 42 | R192104231 | without holes | - | ||
| R192114231 | with holes | 8 1) | |||
| 52 | R192105231 | without holes | - | ||
| R192115231 | with holes | 4 1) | |||
| 52-2 | R192125231 | 8 1) | |||
| 52-4 | R192145231 | 16 1) |
| 1) | Number for one meter when using preferred dimension T1S |
Overview - recommended rail lengths
| Size -Version | Hole spacing T | Holes/rail length L | |||
| mm | mm | Number/mm | |||
| 20, 25, 32-2, 52-4 | 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 | |||
| 32, 42, 52-2 | 125 | 2/246 | 10/1246 | 18/2246 | 28/3496 |
| 4/496 | 12/1496 | 20/2496 | |||
| 6/746 | 14/1746 | 22/2746 | |||
| 8/996 | 16/1996 | 24/2996 | |||
| 52 | 250 | 2/496 | 6/1496 | 14/3496 | |
| 3/746 | 8/1996 | ||||
| 4/996 | 10/2496 | ||||
| 5/1246 | 12/2996 | ||||
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 25
- Desired length: 620 to 625 mm
- nB = 620/T = 620/62,5 = 9,92 rounded (whole numbers) = 10 holes
- 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:
R192112531, 621, 29.25 / 9 x 62.5 / 29.25
Part number, length (mm), T1 / nT x T / T1 (mm)
Mounting hole plugs:
R160580090, 10
Material number, quantity
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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