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MR Size 35 Technical Specifications

The most popular standard size for machine tools

Rail Types MR S 35

MR S 35-N MR S 35-ND MR S 35-NU MR S 35-NUD MR S 35-C
MR S 35-N MR S 35-ND MR S 35-NU MR S 35-NUD MR S 35-C
Standard
Top mounting		 Standard, through-hardened
Through-hardened		 Bottom tapped holes
Bottom mounting		 Bottom tapped holes, through-hardened
Through-hardened		 Cover strip type
For cover strip

Rail Dimensional Drawing MR S 35

MR S 35 Rail Dimensional Drawing
MR S 35 Rail Dimensional Drawing

Rail Specifications MR S 35

Parameter MR S 35-N MR S 35-ND MR S 35-NU MR S 35-NUD MR S 35-C
Rail Width B1 (mm) 34 34 34 34 34
Rail Height J1 (mm) 32 32 32 32 32
Max Single Length L3 (mm) 6000 1500 6000 1500 6000
Fixing Hole Pitch L4 (mm) 40 40 40 40 40
First/Last Hole Position L5/L10 (mm) 18.5 18.5 18.5 18.5 18.5
Unit Weight (kg/m) 6.5 6.5 7.1 7.1 6.3

Model Description

  • N = Standard (top mounting)
  • ND = Standard, through-hardened
  • NU = Bottom tapped holes (bottom mounting)
  • NUD = Bottom tapped holes, through-hardened
  • C = Cover strip type

Carriage Types MR W 35

MR W 35-A MR W 35-B MR W 35-C MR W 35-D MR W 35-E MR W 35-F MR W 35-G
MR W 35-A MR W 35-B MR W 35-C MR W 35-D MR W 35-E MR W 35-F MR W 35-G
Standard
Standard		 Standard long
Standard long		 High/flat
High/flat		 High/flat long
High/flat long		 Side fixing
Side fixing		 Flat
Flat		 Flat long
Flat long

Carriage Dimensional Drawing MR W 35

MR W 35 Carriage Dimensional Drawing
MR W 35 Carriage Dimensional Drawing

Carriage Specifications MR W 35

Parameter MR W 35-A MR W 35-B MR W 35-C MR W 35-D MR W 35-E MR W 35-F MR W 35-G
System Height A (mm) 48 48 55 55 55 48 48
Carriage Width B (mm) 100 100 70 70 76 70 70
Reference Surface Distance B2 (mm) 33 33 18 18 21 18 18
Front Center Lube Hole Position C1 (mm) 7 7 14 14 14 7 7
Side Lube Hole Position C3 (mm) 7 7 14 14 14 7 7
Side Lube Hole Position C4 (mm) 17 30.5 23 25.5 23 23 25.5
Top Lube Hole Position C7 (mm) 14 27.5 20 22.5 20 20 22.5
Carriage Height J (mm) 40 40 47 47 47 40 40
Carriage Length L (mm) 116 143 116 143 116 116 143
Cross Wiper Distance La (mm) 111 138 111 138 111 111 138
Outer Fixing Hole Pitch L1 (mm) 62 62 50 72 50 50 72
Inner Fixing Hole Pitch L2 (mm) 52 52 — — 50 — —
Steel Body Length L6 (mm) 80 103 76 103 76 76 103
Side Fixing Hole Pitch N (mm) 82 82 50 50 — 50 50
Reference Surface Height O (mm) 8 8 8 8 22 8 8
Carriage Weight (kg) 1.6 2.2 1.5 2.0 1.8 1.2 1.6

Rigidity Curves and Load Rating Diagrams

MR W 35 Rigidity Curves and Load Rating Diagrams
MR W 35 Rigidity Diagram and Load Rating

Load Ratings

Carriage Type C₀ Static Load (N) C₁₀₀ Dynamic Load (N) M₀Q Static Cross Moment (Nm) M₀L Static Long. Moment (Nm) MQ Dynamic Cross Moment (Nm) ML Dynamic Long. Moment (Nm)
A / C / E / F 93,400 52,000 2,008 1,189 1,118 662
B / D / G 128,500 71,500 2,762 2,214 1,537 1,232

Load Rating Description

  • C₀ = Static load capacity - Maximum allowable load causing permanent deformation
  • C₁₀₀ = Dynamic load capacity - Load for 100km travel life
  • M₀Q / MQ = Cross moment - Rotation around travel axis
  • M₀L / ML = Longitudinal moment - Rotation around vertical axis

Available Options

Accuracy Classes

Accuracy Class Carriage & Rail Tolerance A/B2 Matched Carriage Max Difference ΔA/ΔB2 Standard Carriage Max Difference
G0 Highly accurate ± 5 µm 3 µm 10 µm
G1 Very accurate ± 10 µm 5 µm 20 µm
G2 Accurate ± 20 µm 7 µm 40 µm
G3 Standard ± 30 µm 25 µm 60 µm

Preload Classes

Preload Class Preload Force (% of C₀) Application
V0 Very light preload 0-2% Very low friction, uniform load, minimum vibration
V1 Light preload 3% Low friction, uniform load, slight vibration
V2 Medium preload 8% High rigidity, moderate varying loads and vibration
V3 High preload 13% Maximum rigidity, impact loads, severe varying loads

Lubrication Connections

Lubrication Positions S10-S23
Lubrication Positions S10, S11, S12, S13, S20, S21, S22, S23
Lubrication Positions S32-S43
Lubrication Positions S32, S33, S42, S43
Code Position Description
S10 Left center Front plate left center position
S11 Top center Carriage top center
S12 Top left Carriage top left side
S13 Lower left side Carriage left side lower
S20 Right center Front plate right center position
S21 Rear center Rear plate center position
S22 Top right Carriage top right side
S23 Lower right side Carriage right side lower
S32 Upper left side Carriage left side upper
S42 Upper right side Carriage right side upper
S98 Special As per customer requirements
S99 Special As per customer requirements

Lubrication as Delivered

Code Type Description Application
LN Oil protect Light oil coating Applications with continuous oil supply after installation
LG Grease protect Thin grease layer Applications with continuous grease supply after installation
LV Full greasing Complete grease filling Applications with manual lubrication

Coating

Code Type Features
— Standard (no coating) Standard steel surface
CN Hard chromium Excellent corrosion resistance, high wear resistance, good emergency running properties

Reference Side

R1 - Reference at bottom R2 - Reference on top

Order Code Examples

Rail Order Code

MR S 35-N-G1-KC-R1-918-19-19-CN

  • MR S 35 = MONORAIL Rail Size 35
  • N = Standard type
  • G1 = Very accurate
  • KC = Fixing holes with countersink
  • R1 = Reference at bottom
  • 918 = Rail length 918mm
  • 19-19 = First/last hole positions
  • CN = Hard chromium coating

Carriage Order Code

MR W 35-B-G1-V3-R1-CN-S10-LN

  • MR W 35 = MONORAIL Carriage Size 35
  • B = Standard long type
  • G1 = Very accurate
  • V3 = Medium preload (8% C₀)
  • R1 = Reference at bottom
  • CN = Hard chromium coating
  • S10 = Lubrication hole position left center
  • LN = Oil protected as delivered
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