Grinding spindle DYFJM-120(065)28/5.5A2-F

belt-drivenISO

INTRODUCTION
The DYFJM-120(065)28/5.5A2-F is a compact cylindrical grinding spindle specified for high radial stiffness. Radial stiffness ≥800 N/μm supports cylindrical grinding loads while the φ120 mm installation diameter and 58±1 kg mass reduce machine space requirements. Key operational data include a φ65 mm journal, rotation precision ≤0.0003 mm and rated speed 2200 rpm.

Key specifications
Diameter: Φ120 mm
Radial stiffness: ≥800 N/μm
Journal diameter: φ65 mm
Rated/Maximum speed: 2200 rpm
Rotation precision: ≤0.0003 mm
Weight: 58±1 kg

TECHNICAL DATA
Installation outside diameter (mm): φ120
Journal diameter (mm): φ65
Drive oil type: ISO VG3
Oil supply pressure (MPa): 2.0-2.5
Axial static stiffness (N/μm): ≥100
Radial static stiffness (N/μm): ≥800
Front end radial runout (mm): ≤0.001
Axial end axial movement (mm): ≤0.001
Rotation precision (mm): ≤0.0003
Drive type: Belt drive
Rotation direction: Clockwise
Rated/Maximum speed (rpm): 2200
Application area: Cylindrical grinding machines
Weight (kg): 58±1

Characteristics / Technical specifications

• Model: DYFJM-120(065)28/5.5A2-F
• Installation outside diameter: φ120 mm
• Journal diameter: φ65 mm
• Drive oil type: ISO VG3
• Oil supply pressure: 2.0-2.5 MPa
• Axial static stiffness: ≥100 N/μm
• Radial static stiffness: ≥800 N/μm
• Front end radial runout: ≤0.001 mm
• Axial end axial movement: ≤0.001 mm
• Rotation precision: ≤0.0003 mm
• Drive type: Belt drive
• Rotation direction: Clockwise
• Rated/Maximum speed: 2200 rpm
• Application: Cylindrical grinding machines
• Weight: 58±1 kg