GMN >> Spindles > Products > High frequency spindles for manual tool change > Technology

Grinding spindles, Milling spindles and Drilling spindles  

HSX, HV-X, HS-T, HSP, HSP..g, HV-P

Bearing design

GMN high frequency spindles utilize hybrid ball bearings.
These bearings have standard steel bearing races and are matched with silicon nitride balls. Advantages of hybrid bearings compared with normal spindle bearings are improvements in:

• Reduced wear
• Rigidity
• Friction
• Axial movement
• Reliability of operation
• Vibrations
• Fatigue life 
• Accuracy

 

Cooling system (Chillers)

• Minimal thermal variations due to liquid cooling of the motor and front bearing complement (chillers)

 

Milling spindles and Drilling spindles  

HSP..g

Permanent grease lubrication

• Low maintenance cost due to permanent grease lubrication
• No environmental pollution by oils
• High reliability due to air purge sealing
• No lubricator required, therefore lower initial investment

 

Grinding spindles, Milling spindles and Drilling spindles  

HS, HSX, HV-X, HS-T, HSP, HV-P

Oil/air lubrication (Oil/air lubricators PRELUB)

• High reliability due to the separate lubrication supply to each bearing set, and the required amount of lubricant (oil/air lubricators)
• Ecologically compatible due to low oil consumption and dispensing with oil mist
• Prolonged bearing life and higher load capacity due to the use of additives such as EP and HT
• Large spectrum of applicable oils

 

Grinding spindles, Milling spindles and Drilling spindles  

HS, HSX, HV-X, HS-T, HSP, HSP..g, HV-P

Inverter

• To fully utilize the high power density of the integral motors GMN can provide the proper power supply, either open or closed-loop design
• The drives will be programmed to match the spindle parameters tested and comply to CE standards