ER20 Spindle, 50,000 RPM, 3.75hp, P/N 60C-ER20-4

ER20 MTC Spindle
Liquid Cooled, 3.75 hp, 4 Pole, 8.9 pounds
ABEC 7 Bearings, 50,000 RPM
More options available in specs

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Paypal financing available


SKU: 60C-ER20-4 Categories: , ,
  • Description
  • Additional information


60C-ER20-4 Spindle

The 60C-ER20-4 is a cylindrical body style model.

Mounting: Cylindrical Style Mount or Front Bearing Support Mount

ER20 Specs: Maximum collet size is 13mm or 1/2″.

Maximum Speed: 50,000 rpm

Run-out: <.00008″ (.002 mm)

Horsepower: 3.75 hp (2.8 kW) (480V )/ 2.0hp (1.5kW) (230V). Motor is 4 pole.

Cooling Method: Liquid Cooled, Max incoming temp. 95 F, Max pressure 1.5 BAR, Max Flow 0.5 GPM

Features: Front Support has feature to mount a surface mounted RTD (McMaster P/N 6577T37), Purge Air, Thermo Sensor PTC 130C, Quick disconnect Harting connector for PTC and Power Leads

Options: If you need a spindle with these options, please call or fill out the contact form. A paypal invoice will be sent with the spindle cost with options.

A – 2 Wire RTD, 100 Ohm, Surface Mount ($75)

B – Steel Harting Connector – For spindle mounted on moving rails, the steel connector offers higher strength to resist breaking ($20)


Country of Origin: USA – Design, developed and majority of parts manufactured in the USA

Compatibility : May fit some 3″ diameter spindle mounts. Spindle is 76mm (2.99 in) in diameter.

Cylindrical Mounting Plate: 60C-720-MP1  The mounting plate clamps around the body.

 Spindle Mounting Plate: 60C-620-MP2  The mounting plate clamps on the front bearing support. 

Recommended VFD: VFD037B23A for up to 3.75 hp applications. This drive is rated at 5hp and allows the motor to use full power. 

Optional VFD: VFD022B21A A little less expensive than the 5hp drive above and it operates on both single and three phase power so it can be used with residential power. The spindle will operate up to 3.3 hp. 

Dimension: Refer to Installation Dwg

3D STEP Model available here: 60C-ER20-4

Weight: 8.9 lbs

Paypal financing available if approved by Paypal. Interest free if paid off in 6 months.


Additional information

Weight 7.5 kg
Dimensions 30 × 9 × 9 cm

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