Type RN
The type RN linear guideway is the logical optimization of the type R guideway. It has the same mounting dimensions as type R, but performs better due to optimized contact surfaces of the guideway tracks. The reduced gap width between guideways also provides better protection against contamination.
Benchmark Data
Track and Surface Quality
- Ground support and/or positioning surfaces and raceways (90° V-groove)
Materials Used (Standard)
- Through-hardened tool steel 1.2842 for raceways, hardness 58 – 62 HRC
- For corrosion-resistant guideways, tool steels 1.4034 and 1.4112
Rolling Elements
- Rollers
Speed
- 1 m/s
Acceleration
- 50 m/s²
- 300 m/s² with cage control
Accuracy
- RN linear guideways are available in three quality classes (see chapter 9)
Operating Temperature
- -40°C to +80°C
Dimensions and Load Capacities Type RN
Design Features
B FORMULA-S cage control design
Specifications - Type RN 3, 4, 6
| Type | Size | L | Dimensions (mm) | Options(7) | Accessories(3) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm(1) | Weight g | A | B/B2 (2) | Dw | J | L1 | L2 | N | d | e | e1 | f | g | m | q | s | ||||
| RN | 3 | 50 | 24 | 18 | 8 | 3 | 8.7 | 25 | 12.5 | 3.5 | 6 | M4 | M3 | 3.3 | 4.8 | 4.8 | 7 | 0.85 | SQ SSQ RF EG ZG HA DU DR KS | Roller cages: - KBN 3 - KBS 3 End screws: - GAN 3 Fastening screws: - GD 3 - GD 4 |
| 75 | 35 | |||||||||||||||||||
| 100 | 47 | |||||||||||||||||||
| 125 | 59 | |||||||||||||||||||
| 150 | 71 | |||||||||||||||||||
| 175 | 82 | |||||||||||||||||||
| 200 | 94 | |||||||||||||||||||
| 225 | 106 | |||||||||||||||||||
| 250 | 118 | |||||||||||||||||||
| 275 | 129 | |||||||||||||||||||
| 300 | 141 | |||||||||||||||||||
| RN | 4 | 80 | 62 | 22 | 11 | 4.5 | 10.5 | 40 | 20 | 4.5 | 8 | M5 | M3 | 4.3 | 6.9 | 5.5 | 7 | 0.85 | SQ SSQ RF EG ZG HA DU DR KS | Roller cages: - KBN 4 - KBS 4 End screws: - GAN 4 Fastening screws: - GD 4 - GD 6 |
| 120 | 93 | |||||||||||||||||||
| 160 | 124 | |||||||||||||||||||
| 200 | 155 | |||||||||||||||||||
| 240 | 186 | |||||||||||||||||||
| 280 | 217 | |||||||||||||||||||
| 320 | 248 | |||||||||||||||||||
| 360 | 279 | |||||||||||||||||||
| 400 | 310 | |||||||||||||||||||
| RN | 6 | 100 | 151 | 31 | 15 | 6.5 | 14.8 | 50 | 25 | 6 | 9.5 | M6 | M5 | 5.2 | 9.8 | 7.5 | 9 | 0.85 | SQ SSQ RF EG ZG HA DU DR KS | Roller cages: - KBN 6 - KBS 6 End screws: - GA 6 Fastening screws: - GD 6 - GD 9 |
| 150 | 226 | |||||||||||||||||||
| 200 | 301 | |||||||||||||||||||
| 250 | 377 | |||||||||||||||||||
| 300 | 452 | |||||||||||||||||||
| 350 | 527 | |||||||||||||||||||
| 400 | 603 | |||||||||||||||||||
| 450 | 678 | |||||||||||||||||||
| 500 | 753 | |||||||||||||||||||
Specifications - Type RN 9, 12
| Type | Size | L | Dimensions (mm) | Options(7) | Accessories(3) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm(1) | Weight g | A | B/B2 (2) | Dw | J | L1 | L2 | N | d | e | e1 | f | g | m | q | s | ||||
| RN | 9 | 200 | 659 | 44 | 22 | 9 | 21.1 | 100 | 50 | 9 | 10.5 | M8 | M6 | 6.8 | 15.8 | 11.5 | 9 | - | SQ SSQ RF EG ZG HA DU | Roller cages: - KBN 9 End screws: - GA 9 Fastening screws: - GD 9 - GD 12 |
| 300 | 988 | |||||||||||||||||||
| 400 | 1318 | |||||||||||||||||||
| 500 | 1647 | |||||||||||||||||||
| 600 | 1976 | |||||||||||||||||||
| 700 | 2306 | |||||||||||||||||||
| 800 | 2635 | |||||||||||||||||||
| RN | 12 | 200 | 1086 | 58 | 28 | 12 | 27.6 | 100 | 50 | 12 | 13.5 | M10 | M8 | 8.5 | 19.8 | 15 | 12 | - | SQ SSQ RF EG ZG HA DU | Roller cages: - KBN 12 End screws: - GA 12 Fastening screws: - GD 12 - GD 15 |
| 300 | 1628 | |||||||||||||||||||
| 400 | 2171 | |||||||||||||||||||
| 500 | 2714 | |||||||||||||||||||
| 600 | 3257 | |||||||||||||||||||
| 700 | 3800 | |||||||||||||||||||
| 800 | 4342 | |||||||||||||||||||
| 900 | 4885 | |||||||||||||||||||
| 1000 | 5428 | |||||||||||||||||||
(1) The lengths listed are standard lengths; other lengths are available on request. See table below for maximum lengths.
(2) B indicates the width of a single guideway. B2 indicates the total width of two guideways.
(3) For accessory selection: see accessories chapter for cage types, end screws, and fastening screws.
(7) For options, see chapter 7.
Maximum Lengths for Type RN
| Type / Size | Quality Class | Max. Length Standard Material (mm) | Max. Length Stainless Steel (mm) |
|---|---|---|---|
| RN 3 | NQ | 800 | 600 |
| SQ | - | - | |
| SSQ | 600 | - | |
| RN 4 | NQ | 900 | 900 |
| SQ | - | - | |
| SSQ | 600 | 600 | |
| RN 6 | NQ | 1,500 | 1,400 |
| SQ | - | 1,200 | |
| SSQ | 1,200 | 900 | |
| RN 9 | NQ | 3,000 | 3,000 |
| SQ | - | - | |
| SSQ | - | - | |
| RN 12 | NQ | 3,000 | 3,000 |
| SQ | - | - | |
| SSQ | - | - |
Rail Chamfer
The table below shows rail chamfer details. Note that part numbers and company logos are marked on the opposite side of the reference and support surfaces.
| Type / Size | Reference Edge Chamfer (mm) |
|---|---|
| RN 3 | 0.6 × 45° |
| RN 4 | 0.6 × 45° |
| RN 6 | 0.8 × 45° |
| RN 9 | 0.8 × 45° |
| RN 12 | 1.0 × 45° |
Type RN Accessories
Roller Cage Type KBN
Compatible with:
- Linear guideway Type RN
- Sizes 3 to 12
Design:
- Rollers held in position
Installation:
- Suitable for general applications and certain overload cage applications
Material:
- POM (vacuum compatible to 10-7 mbar)
Options:
- Corrosion-resistant rollers
| Type | Size | Dw | t | w | C100 per roller (N) | C50 per roller (N) | Max. length (mm) |
|---|---|---|---|---|---|---|---|
| KBN | 3 | 3 | 5 | approx. 3.5 | 410 | 504.3 | 900 |
| 4 | 4.5 | 6.5 | approx. 4 | 850 | 1045.5 | 900 | |
| 6 | 6.5 | 8.5 | approx. 5 | 1,800 | 2214.0 | 1,500 | |
| 9 | 9 | 12 | approx. 7.5 | 3,900 | 4797.0 | 1,500 | |
| 12 | 12 | 15 | approx. 9 | 6,500 | 7995.0 | 1,500 |
Roller Cage Type KBS (for FORMULA-S Cage Control)
For details on FORMULA-S, see chapter 7.8.
Compatible with:
- Linear guideway Type RN
- Sizes 3 to 6
Design:
- Rollers held in position
- With integral pinion
Installation:
- Suitable for general applications and certain overload cage applications
Material:
- POM (vacuum compatible to 10-7 mbar)
Options:
- Corrosion-resistant rollers
| Type | Size | Dw | t | tz | w | C(1) C100 per roller (N) | C(1) C50 per roller (N) | Max. length (mm) |
|---|---|---|---|---|---|---|---|---|
| KBS | 3 | 3 | 5 | 18 | approx. 3.5 | 410 | 504.3 | 900 |
| 4 | 4.5 | 6.5 | 23 | approx. 4 | 850 | 1045.5 | 900 | |
| 6 | 6.5 | 8.5 | 27 | approx. 5 | 1,800 | 2214.0 | 1,500 |
(1) Load capacity C includes the hardness factor fH specified in chapter 12.3
End Screws Type GAN and GA
End Screws Type GAN
- Compatible with: Linear guideways RN 3 and RN 4
- Installation: For horizontal mounting
End Screws Type GA
- Compatible with: Linear guideways RN 6, RN 9, and RN 12
- Installation: For all mounting positions
Reduced Shank Fastening Screws Type GD 3 to GD 15
Features:
- For compensating hole pitch differences
Compatible with:
- Linear guideway Type RN 3 to RN 12
| Type | Size | L | b | b1 | d1 | d2 | d3 | k | s | Max. tightening torque Ncm(1) | Compatible guideway sizes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Case 1) | (Case 2) | |||||||||||
| GD | 3 | 12 | 5 | 7 | M3 | 5 | 2.3 | 3 | 2.5 | 94 | RN 3 | - |
| 4 | 16 | 7 | 9 | M4 | 6.5 | 3 | 4 | 3 | 221 | RN 4 | RN 3 | |
| 6 | 20 | 8 | 12 | M5 | 8 | 3.9 | 5 | 4 | 463 | RN 6 | RN 4 | |
| 9 | 30 | 12 | 18 | M6 | 8.5 | 4.6 | 6 | 5 | 762 | RN 9 | RN 6 | |
| 12 | 40 | 17 | 23 | M8 | 11.3 | 6.25 | 8 | 6 | 1838 | RN 12 | RN 9 | |
| 15 | 45 | 16 | 29 | M10 | 13.9 | 7.9 | 10 | 8 | 3674 | - | RN 12 | |
(1) Tightening torque applies to materials with tensile strength > 360 N/mm²