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Electromate & Schneeberger. How to Design & Build a High Precision Positioning System. Agenda. Selection basics Stroke Overall Size / Pulsation Load Speed Accuracy Comparison Lubrication Causes of Bearing Failure Schneeberger. Selection Basics - Stroke. Short Stroke Medium Stroke.

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electromate schneeberger

Electromate & Schneeberger

How to Design & Build a

High Precision Positioning System

agenda

Agenda

Selection basics

Stroke

Overall Size / Pulsation

Load

Speed

Accuracy Comparison

Lubrication

Causes of Bearing Failure

Schneeberger

selection basics stroke

Selection Basics - Stroke

Short Stroke

Medium Stroke

selection basics overall size pulsation

Selection Basics – Overall size / Pulsation

Pulsation – caused by the entering/exiting of rolling elements form the load zone (preloaded condition)

selection basics load capacity

Selection Basics – Load Capacity

AK9/6 (88mm long) - 900N

AC9/6 (88mm long) - 7,800N

KBN9/8 (99mm long) - 31,200N

HW15/97mm (25 Needles) 18,250N or 37,500N

BMA35 38,700N

MRA35 52,000N

selection basics speed

Selection Basics – Speed

Anti-friction guideways 0.83m/sec

NRT Recirculating Units 0.83m/sec

SK/SKD, SR Units 2.0m/sec

Roller Monorail 3m/sec

Minirail 5m/sec

Ball Monorail 5m/sec

selection basics accelerations

Selection Basics – Accelerations

Anti-friction guideways 50m/s2

NRT Recirculating Units 50m/s2

SK/SKD, SR Units 50m/s2

Roller Monorail 50m/s2

Ball Monorail 100m/s2

Minirail 300m/s2

selection basics accuracy

Selection Basics – Accuracy

R Bearings - ~3 microns @ 1M

selection basics accuracy10

Selection Basics – Accuracy

Minirail - ~ 5 microns @ 1M

selection basics accuracy11

Selection Basics – Accuracy

Mr or BM – 3, 5, 10, or 15 microns @ 1M

selection basics lubrication13

Selection Basics – Lubrication

Lubrication with Oil

Subsequent Lubrication Interval – 30 km

Lubrication with Grease

Subsequent Lubrication Interval – C/P x 100 km

Recommended Grease

Mobilgrease® XHP 222 and Mobilgrease

XHP® 222 Special

typical damage of monorail
Typical damage of Monorail
  • Main reasons for failure of Monorail-systems:
  • Lack of lubrication
  • Improper mounting of rail or carriage
  • Wear of wiper, damage of wiper
  • Overload or crash
typical damage of monorail16
Typical damage of Monorail
  • Necessary information for damage inspection.
  • Which type of application/machine?
  • Which operating conditions? (lubrication, coolants)
  • Which was the reason for the customer to disassemble the system?
  • Comparable damages in the same application/machine?
  • Location, type of machine, assembling position of monorail
typical damage of monorail17
Typical damage of Monorail
  • Lack of lubrication
  • More than 50% of failurs are caused by lack of lubrication.
  • Main reasons for lack of lubrication: failure in the lubrication system of the machine, lubrication washed out by coolant.
  • Detection of failure because of discoloration of the rail track. Brown or blue discolorations are an indicator for friction (not enough oil film between elements).
typical damage of monorail18
Typical damage of Monorail

Lack of lubrication,

discoloration of the rail track

typical damage of monorail19
Typical damage of Monorail
  • Particles pressed into the running track of the rail, beginning of failure
typical damage of monorail20
Typical damage of Monorail

Beginning of pitting at running track of the rail

typical damage of monorail21
Typical damage of Monorail

Next step > broken runway

typical damage of monorail22
Typical damage of Monorail

Lack of lubrication > corrosion

typical damage of monorail23
Typical damage of Monorail

Improper alignment of carriage / rail

overload

typical damage of monorail24
Typical damage of Monorail

Improper installation of hole plugs > damage of wipers

typical damage of monorail25
Typical damage of Monorail

Improper alignment of rail butt joints

typical damage of monorail29
Typical damage of Monorail

Crash, broken steel body, caused by overload

Brinelled runway of rail

typical damage of monorail30
Typical damage of Monorail

Failure in production (heat treatment crack)

typical damage of monorail31
Typical damage of Monorail

Failure in production (heat treatment crack)

typical damage of monorail32
Typical damage of Monorail

Failure in production (plastic molding)

schneeberger product line
Recirculating Units

Minirail

Schneeberger Product Line

Minislide

Slides

R Bearing Family

components
Type R

Type RN

Type RNG

Type M/V

Type N/O

Components

recirculating units
Type SR

Type SK & SKD

Type ECO ROLL

Type NRT

Recirculating Units

slides

Slides

Minislide

set slides

SET Slides

NE-AL

NFM

NH2-AL

slide40

UCT

UCT Positioning Stages

automation
Linear modules ALM 70
  • Linear modules ALM 80
  • Linear modules ALS 140
  • Rotary modules ARS

Automation

ams advanced measuring system
AMSA3A

AMSA4A

AMS – Advanced Measuring System

AMSD4A

AMSD3A

AMSABS3A

AMSA3L

other products

Other Products

Airex

Sferax

Micron

Hipp

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