Grinding spindle DYFDM-200(100)20/23-F

motorizedISOoil-lubricated

Product overview
The DYFDM-200(100)20/23-F is a raceway grinding spindle designed for dedicated raceway/grinding machines. It integrates a rear-mounted synchronous motor delivering continuous torque at S1 duty and an oil-cooling recommendation for stable thermal behaviour.

Key specifications
Diameter: φ200 mm
Maximum speed: 2500 rpm
Motor: Rear-mounted synchronous motor, 23 kW (S1 100%), 110 N·m continuous torque
Cooling: Oil cooling (recommended)

Technical data
Model: DYFDM-200(100)20/23-F
Installation outside diameter (mm): φ200
Drive oil type: ISO VG5
Oil supply pressure (MPa): 2.5–3
Axial static stiffness (N/μm): ≥350
Radial static stiffness (N/μm): ≥200
Front end radial runout (mm): ≤0.001
Axial end axial movement (mm): ≤0.001
Rotation precision (mm): ≤0.0003
Drive type: Rear motor drive
Rotation movement: Anticlockwise
Highest speed (rpm): 2500
Max. frequency (Hz): 167
Motor system: Synchronous motor
Rated voltage (V): 380
Power output S1 100% (kW): 23
Output torque S1 100% (N·m): 110
Rated current S1 100% (A): 43
Net weight (kg): 190±2

Applications & benefits
Designed for raceway grinding machines, the spindle provides the axial and radial stiffness and rotation precision required for bearing raceway finishing. The rear synchronous motor arrangement supports stable torque delivery at continuous load and simplifies integration into dedicated grinding heads.

Characteristics / Technical specifications

• Model: DYFDM-200(100)20/23-F
• Installation outside diameter: φ200 mm
• Maximum speed: 2500 rpm
• Motor system: Synchronous rear-mounted motor
• Power output (S1 100%): 23 kW
• Output torque (S1 100%): 110 N·m
• Rated current (S1 100%): 43 A
• Rated voltage: 380 V
• Drive oil type: ISO VG5
• Oil supply pressure: 2.5–3 MPa
• Axial static stiffness: ≥350 N/μm
• Radial static stiffness: ≥200 N/μm
• Front end radial runout: ≤0.001 mm
• Axial end axial movement: ≤0.001 mm
• Rotation precision: ≤0.0003 mm
• Rotation movement: Anticlockwise
• Max. frequency: 167 Hz
• Cooling system: Oil cooling (recommended)
• Application: Raceway grinding machines
• Net weight: 190±2 kg