Type RNG
Like type RN, the type RNG linear guideway is based on the type R linear guideway. Like type RN, it has larger contact surfaces for the guideway tracks, which means its performance is significantly enhanced. Compared with types R and RN its cross-section is, however, smaller, which means that it represents a cost-effective solution without compromise.
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 (double-row design)
Speed
- 1 m/s
Acceleration
- 50 m/s²
- 300 m/s² with cage control
Accuracy
- RNG linear guideways are available in three quality classes (see chapter 9)
Operating Temperature
- -40°C to +80°C
Dimensions and Load Capacities Type RNG
Design Features
B FORMULA-S cage control design
Specifications - Type RNG 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 | u | s | ||||
| RNG | 4 | 50 | 27 | 19 | 9 | 4.5 | 9 | 25 | 12.5 | 3.5 | 5.5 | M3 | M3 | 2.65 | 6.3 | 3.5 | 6 | - | 0.85 | SQ SSQ RF EG ZG HA DU DR KS | Roller cages: - KBN 4 - KBS 4 End pieces: - GBN 4 - GCN 4 - GCN-A 4 Fastening screws: - GDN 4 - GDN 6 |
| 75 | 41 | ||||||||||||||||||||
| 100 | 55 | ||||||||||||||||||||
| 125 | 69 | ||||||||||||||||||||
| 150 | 83 | ||||||||||||||||||||
| 175 | 97 | ||||||||||||||||||||
| 200 | 111 | ||||||||||||||||||||
| 225 | 125 | ||||||||||||||||||||
| 250 | 139 | ||||||||||||||||||||
| 275 | 153 | ||||||||||||||||||||
| 300 | 167 | ||||||||||||||||||||
| RNG | 6 | 100 | 92 | 25 | 12 | 6.5 | 13.2 | 50 | 25 | 5 | 6.5 | M5 | M5 | 4.2 | 8.6 | 5.5 | 8 | - | 0.85 | SQ SSQ RF EG ZG HA DU DR KS | Roller cages: - KBN 6 - KBS 6 End pieces: - GBN 6 - GCN 6 - GCN-A 6 Fastening screws: - GDN 6 - GDN 9 |
| 150 | 138 | ||||||||||||||||||||
| 200 | 184 | ||||||||||||||||||||
| 250 | 230 | ||||||||||||||||||||
| 300 | 276 | ||||||||||||||||||||
| 350 | 322 | ||||||||||||||||||||
| 400 | 368 | ||||||||||||||||||||
Specifications - Type RNG 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 | u | s | ||||
| RNG | 9 | 100 | 150 | 33 | 16 | 9 | 18.7 | 100 | 50 | 6.5 | 8.5 | M6 | M6 | 5.5 | 13.6 | 7.5 | 10 | 15 | 0.85 | SQ SSQ RF EG ZG HA DU | Roller cages: - KBN 9 End pieces: - GBN 9 - GCN 9 - GCN-A 9 Fastening screws: - GDN 9 - GDN 12 |
| 150 | 230 | ||||||||||||||||||||
| 200 | 310 | ||||||||||||||||||||
| 250 | 390 | ||||||||||||||||||||
| 300 | 470 | ||||||||||||||||||||
| 350 | 550 | ||||||||||||||||||||
| 400 | 630 | ||||||||||||||||||||
| 450 | 710 | ||||||||||||||||||||
| 500 | 790 | ||||||||||||||||||||
| RNG | 12 | 200 | 600 | 45 | 22 | 12 | 25.3 | 100 | 50 | 9 | 11 | M8 | M8 | 7 | 17.2 | 10 | 13 | 20 | 0.85 | SQ SSQ RF EG ZG HA DU | Roller cages: - KBN 12 End pieces: - GBN 12 - GCN 12 - GCN-A 12 Fastening screws: - GDN 12 - GDN 15 |
| 300 | 905 | ||||||||||||||||||||
| 400 | 1207 | ||||||||||||||||||||
| 500 | 1508 | ||||||||||||||||||||
| 600 | 1810 | ||||||||||||||||||||
| 700 | 2125 | ||||||||||||||||||||
| 800 | 2430 | ||||||||||||||||||||
| 900 | 2734 | ||||||||||||||||||||
| 1000 | 3038 | ||||||||||||||||||||
(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 pieces, and fastening screws.
(7) For options, see chapter 7.
Maximum Lengths
The table below shows the maximum lengths for recirculating units of different quality classes and materials.
| Type / Size | Quality Class | Max. Length Standard Material (mm) | Max. Length Corrosion-Resistant (mm) |
|---|---|---|---|
| RNG 4 | NQ | 900 | 900 |
| SQ | - | - | |
| SSQ | 600 | 600 | |
| RNG 6 | NQ | 1,500 | 1,400 |
| SQ | - | 1,200 | |
| SSQ | 1,200 | 900 | |
| RNG 9 | NQ | 3,000 | 3,000 |
| SQ | - | - | |
| SSQ | - | - | |
| RNG 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) |
|---|---|
| RNG 4 | 0.4 × 45° |
| RNG 6 | 0.5 × 45° |
| RNG 9 | 0.8 × 45° |
| RNG 12 | 0.8 × 45° |
Type RNG Accessories
Roller Cage Type KBN
Compatible with:
- Linear guideway Type RNG
- Sizes 4 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 | 4 | 4.5 | 6.5 | approx. 4 | 850 | 1,045.5 | 900 |
| 6 | 6.5 | 8.5 | approx. 5 | 1,800 | 2,214.0 | 1,500 | |
| 9 | 9 | 12 | approx. 7.5 | 3,900 | 4,797.0 | 1,500 | |
| 12 | 12 | 15 | approx. 9 | 6,500 | 7,995.0 | 1,500 |
Roller Cage Type KBS - FORMULA-S Design
Compatible with:
- Linear guideway Type RNG - FORMULA-S design
- Sizes 4 to 9
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 | C100 per roller (N) | C50 per roller (N) | Max. length (mm) |
|---|---|---|---|---|---|---|---|---|
| KBS | 4 | 4.5 | 6.5 | 23 | approx. 4 | 850 | 1,045.5 | 900 |
| 6 | 6.5 | 8.5 | 27 | approx. 5 | 1,800 | 2,214.0 | 1,500 | |
| 9 | 9 | 12 | 40 | approx. 7.5 | 3,900 | 4,797.0 | 1,500 |
End Pieces Type GBN 4 and GBN 6
Compatible with:
- Linear guideways RNG 4 and RNG 6
Installation:
- No restrictions
Scope of supply:
- Including end screws
End Pieces Type GBN 9 and GBN 12
Compatible with:
- Linear guideways RNG 9 and RNG 12
Installation:
- No restrictions
Scope of supply:
- Including end screws
End Pieces Type GCN (for Overrunning Cage)
Special function:
- For overrunning cage
Compatible with:
- Linear guideways RNG 4 to RNG 12
Installation:
- No restrictions
Scope of supply:
- Including end screws
End Pieces Type GCN-A (with Wiper)
Compatible with:
- Type RNG 4 to RNG 12
Design:
- With felt wiper
Installation:
- No restrictions
Scope of supply:
- Including end screws
Reduced Shank Fastening Screws Type GDN 4 to GDN 15
Features:
- For compensating hole pitch differences
Compatible with:
- Linear guideway Type RNG 4 to RNG 12
| Type | Size | L | b | b1 | d1 | d2 | d3 | k | s | Max. tightening torque Ncm(1) | Compatible guideway sizes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Case 1) | (Case 2) | |||||||||||
| GDN | 4 | 12 | 5 | 7 | M2.5 | 4.5 | 1.85 | 2.5 | 2 | 54 | RNG 4 | - |
| 6 | 16 | 5 | 11 | M3 | 5.5 | 2.3 | 3 | 2.5 | 94 | RNG 6 | RNG 4 | |
| 9 | 25 | 11 | 14 | M4 | 7 | 3 | 4 | 3 | 221 | RNG 9 | RNG 6 | |
| 12 | 30 | 12 | 18 | M6 | 10 | 4.6 | 6 | 5 | 762 | RNG 12 | - | |
| 15 | 40 | 17 | 23 | M8 | 13 | 6.25 | 8 | 6 | 1,838 | - | RNG 12 | |
(1) Tightening torque applies to materials with tensile strength > 360 N/mm²