A2-5 Lathe Spindle (Standard) - 42mm Bore 5000 RPM Precision Unit

The A2-5 Lathe Spindle (Standard) is engineered for heavy-duty CNC turning applications that demand both high speed and extreme rigidity. This belt-driven unit features a 170mm locating diameter and a versatile 42mm bore, making it an excellent choice for a wide range of bar-feeding and turning tasks. It is constructed with a superior 4+2 bearing arrangement, utilizing 7016 P4 front bearings and 7014 P4 rear bearings to ensure maximum axial and radial stability. With a factory-packed grease lubrication system and a maximum speed of 5000 RPM, this spindle delivers consistent, high-precision performance with reduced maintenance overhead.

Standard A2-5 Nose Taper for industrial compatibility
High-speed operation up to 5000 RPM
Versatile 42mm Bore Diameter
P4 Grade precision front (7016) and rear (7014) bearings
Precision 170 h6 Locating Diameter
Robust 533mm total length for enhanced stability

⚡ 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	A2-5
LOCATING DIAMETER	170 h6 x 310 mm
TOTAL LENGTH	533 mm
FLANGE DIAMETER	235 mm
MAX SPEED	5000 RPM
MECHANICAL	housingMaterial: High-Grade 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
Precision CNC Turning Centers	Automotive Component Manufacturing
Industrial CNC Lathe Machines	Aerospace Parts Machining
Automated Bar-Feeding Operations	Heavy Engineering and Tooling
Heavy-Duty Metal Cutting and Shaping	General Machining and Job Works
Custom Machine Building and Spindle Upgrades	Industrial Spares Manufacturing

Technical FAQ & Operational Guide

What is the limiting speed for the A2-5 Lathe Spindle?

This spindle is precision-balanced and engineered to operate at a maximum speed of 5000 RPM.

Which bearings are used in the A2-5 standard model?

It features a high-rigidity 4+2 bearing configuration, using four 7016 P4 precision bearings in the front and two 7014 P4 bearings in the rear.

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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A2-5 Lathe Spindle (Standard) - 42mm Bore 5000 RPM Precision Unit

Standard A2-5 Nose Taper for industrial compatibility

High-speed operation up to 5000 RPM

Versatile 42mm Bore Diameter

P4 Grade precision front (7016) and rear (7014) bearings

Precision 170 h6 Locating Diameter

Robust 533mm total length for enhanced stability

⚡ 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

A2-5

LOCATING DIAMETER

170 h6 x 310 mm

TOTAL LENGTH

533 mm

FLANGE DIAMETER

235 mm

MAX SPEED

5000 RPM

MECHANICAL

housingMaterial: High-Grade 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

Precision CNC Turning Centers

Automotive Component Manufacturing

Industrial CNC Lathe Machines

Aerospace Parts Machining

Automated Bar-Feeding Operations

Heavy Engineering and Tooling

Heavy-Duty Metal Cutting and Shaping

General Machining and Job Works

Custom Machine Building and Spindle Upgrades

Industrial Spares Manufacturing