MaalonDrive® Hollow 8mm - Type 2

MaalonDrive®

Hollow 8mm - Type 2

Technical Supply Specifications

Features

  • Fast delivery
  • High repeatability
  • Zero backlash with speed optimised transmittion ratio
  • Hollow shaft thru center of rotational axis
  • Preloaded ball bearing

Description

The MaalonDrive® Hollow 8mm - type 2 micro positioning gear is characterised, in particular, by its hollow shaft, yet with minimal outer dimensions. Optical or electrical signals can be guided through the hollow shaft on the central rotary axis of the gear, thereby allowing a simple and space-saving design to be realised. At the core of this micro gearbox is a zero-backlash MaalonDrive® gear with a reduction ratio of 120:1. The preloaded ball bearings on both the input shaft as well as the output shaft result in precise guiding and allow the application to be directly connected.

Technical Parameter

Global System
Number Parameter Symbol Value Hint
P-003
Ratioi120 : 1
P-004
Self-locking yes  
P-006
Hollow shaft 1  
P-008
Repeatability unidirectional 15 arcsec 
P-009
Repeatability bidirectional 20 arcmin 
P-010
Accuracy 20 arcmin 
P-011
Transmission accuracy 30 arcmin 
P-013
Torsional stiffness 2.67 Nm/rad 
P-014
Lost motion 20 arcmin 
P-015
Backlash 0 arcmin 
P-016
Rated torqueT18 mNm 
P-017
Peak torqueT37 mNm 
P-018
Momentary peak torqueT92 mNm 
P-021
Rated input speedn15000 rpm 
P-022
Maximum input speedn50000 rpm 
P-023
Rated output speedn125 rpm 
P-024
Maximum output speedn416.667 rpm 
P-026
No-load starting torqueT97.5 μNm 
P-027
No-load running torqueT65 μNm 
P-028
Rated running torqueT620 μNm 
P-034
Lifetime for rated operation 1000 h 
P-035
Radial backlash output shaft 0 μm 
P-036
Axial backlash output shaft 0 μm 
P-037
Radial stiffnessc0.87 N/μm 
P-038
Axial stiffnessc18.5 N/μm 
P-039
Max. radial load on output shaft (non-operating, constant load)F20 N 
P-040
Max. radial load on output shaft (non-operating, impulsive load)F5 N 
P-041
Max. radial load on output shaft (operating, constant load)F3 N 
P-042
Max. radial load on output shaft (operating, impulsive load)F3 N 
P-043
Max. axial load on output shaft (non-operating, constantF64 N 
P-044
Max. axial load on output shaft (non-operating, impulsive load)F20 N 
P-045
Max. axial load on output shaft (operating, constant load)F185 N 
P-046
Max. axial load on output shaft (operating, impulsive load)F66 N 
P-047
Max. radial load on input shaft (non-operating, constant load)F25 N 
P-048
Max. radial load on input shaft (non-operating, impulsive load)F8 N 
P-049
Max. radial load on input shaft (operating, constant load)F11 N 
P-050
Max. radial load on input shaft (operating, impulsive load)F8 N 
P-051
Max. axial load on input shaft (non-operating, constant load)F49 N 
P-052
Max. axial load on input shaft (non-operating, impulsive load)F15 N 
P-053
Max. axial load on input shaft (operating, constant load)F147.5 N 
P-054
Max. axial load on input shaft (operating, impulsive load)F61 N 
P-055
Moment of inertiaI28 * 10-4 gcm2 
P-056
Weightm4 g 
P-057
Min. permissible ambient temperature (non-operating)T-80 °C 
P-058
Min. permissible ambient temperature (operating)T-20 °C 
P-059
Max. permissible ambient temperature (non-operating)T150 °C 
P-060
Max. permissible ambient temperature (operating)T120 °C 
Material information
Number Parameter Symbol Value Hint
P-900
RoHS compliant yes  
P-901Lubrication of output bearing gearbox Longtime PD2  
P-902Lubrication of input bearing gearbox Longtime PD2  
P-908Material of gear component set NiFe  
P-909Material of output bearing gearbox 1.4108 DIN EN  
P-910Material of input bearing gearbox 1.4108 DIN EN  
P-912Material of gearbox output side 1.4305 DIN EN  
P-913Material of gearbox input side 1.4305 DIN EN  
P-029 - Running torque characteristic

Technical Drawing

MaalonDrive® Hollow 8mm - Type 2
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