A2-4 Lathe Spindle (Standard)

The A2-4 Lathe Spindle (Standard) is a precision-engineered solution for high-capacity CNC turning and lathe machinery. Designed to handle demanding industrial loads, this belt-driven unit features a generous 42mm bore diameter, ideal for bar-feeding operations. It is built for stability and longevity, utilizing a high-rigidity 4+2 bearing configuration with 7016 P4 front bearings and 7014 P4 rear bearings. With a limiting speed of 5000 RPM and a factory-packed grease lubrication system, this spindle ensures high-accuracy machining with minimal maintenance intervention.

A2-4 Nose Taper for standard tool and chuck compatibility
Limiting speed of 5000 RPM
Wide 42mm Bore Diameter
High-precision 7016 P4 front and 7014 P4 rear bearings
170 h6 precision locating diameter
Robust construction for CNC turning and lathes

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Specifications

Technical Parameter	Engineering Specification Value
NOSE TAPER	A2-4
LOCATING DIAMETER	170 h6 x 310 mm
TOTAL LENGTH	235 mm
FLANGE DIAMETER	195 mm
MAX SPEED	5000 RPM
MECHANICAL	housingMaterial: Hardened Alloy Steel \| driveType: Belt Driven
BORE DIAMETER	42 mm
LUBRICATION TYPE	Grease Packed
FRONT BEARING TYPE	7016 P4 (x4)
REAR BEARING TYPE	7014 P4 (x2)
BEARING CONFIGURATION	4 + 2 Set

Industrial Applications

Usage Scenario	Target Industry
High-Precision CNC Turning Machines	Automotive Component Manufacturing
Standard Industrial Lathe Centers	Aerospace and Defense Machining
Automated Bar Feeding Systems	Heavy Engineering and Tooling
Heavy-Duty Metal Cutting and Turning	Precision Electronics and Hardware
Retrofitting and Spindle Upgrades	Industrial Spares Manufacturing

Technical FAQ & Operational Guide

What is the bore diameter of the A2-4 Lathe Spindle?

The A2-4 Lathe Spindle (Standard) features a bore diameter of 42mm, suitable for various bar-feeding and turning operations.

What bearing configuration does this spindle use?

This unit utilizes a 4+2 bearing configuration, consisting of four 7016 P4 precision bearings in the front and two 7014 P4 bearings in the rear for maximum rigidity.

Is the lubrication system manual or automated?

The spindle comes grease-packed from the factory, which means it is permanently lubricated and does not require a continuous external oil system.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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A2-4 Lathe Spindle (Standard)

A2-4 Nose Taper for standard tool and chuck compatibility

Limiting speed of 5000 RPM

Wide 42mm Bore Diameter

High-precision 7016 P4 front and 7014 P4 rear bearings

170 h6 precision locating diameter

Robust construction for CNC turning and lathes

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Parameter

Engineering Specification Value

NOSE TAPER

A2-4

LOCATING DIAMETER

170 h6 x 310 mm

TOTAL LENGTH

235 mm

FLANGE DIAMETER

195 mm

MAX SPEED

5000 RPM

MECHANICAL

housingMaterial: Hardened Alloy Steel | driveType: Belt Driven

BORE DIAMETER

42 mm

LUBRICATION TYPE

Grease Packed

FRONT BEARING TYPE

7016 P4 (x4)

REAR BEARING TYPE

7014 P4 (x2)

BEARING CONFIGURATION

4 + 2 Set

Usage Scenario

Target Industry

High-Precision CNC Turning Machines

Automotive Component Manufacturing

Standard Industrial Lathe Centers

Aerospace and Defense Machining

Automated Bar Feeding Systems

Heavy Engineering and Tooling

Heavy-Duty Metal Cutting and Turning

Precision Electronics and Hardware

Retrofitting and Spindle Upgrades

Industrial Spares Manufacturing