Fanuc Z?Axis Ball Screw Set A97L-0218-0384#320N-235

Main Product Series – Function & Application Comparison

Typical Applications & Industries:
? CNC milling and turning centers ? Precision machining and parts manufacturing
? Machine tool maintenance and repair ? OEM equipment integration
? Aerospace and automotive machining ? General metalworking industry

Detailed Description – FANUC Z-Axis Ball Screw Set Portfolio

1. Series Overview – Precision Linear Motion Components for CNC Machines

The FANUC A97L- series ball screw sets are original equipment manufacturer (OEM) components designed for the precise linear motion control of CNC machine axes. These ball screws are engineered to convert rotary motion from the servo motor into highly accurate linear motion, ensuring smooth operation and absolute positioning accuracy in FANUC-controlled machines?. As genuine FANUC parts, they are manufactured to strict quality standards and are critical for maintaining the performance, repeatability, and longevity of CNC equipment?.

Key Family Features:

• ??OEM Original Parts?– Manufactured to FANUC’s strict standards for optimal compatibility and performance?

• ??High Precision Grades?– Available in C3 (highest precision) and C5 grades to suit different accuracy requirements?

• ??Minimized Backlash?– Precision-engineered to ensure near-zero backlash for superior machining accuracy?

• ??Wear-Resistant Surface?– Specially treated surfaces provide high durability and maintain performance over extended service life?

• ??Smooth, Low-Friction Operation?– Minimizes friction and optimizes speed and machining efficiency?

• ??Axis-Specific Configurations?– Available for X, Y, and Z axes with specific length and specification variants?

2. Key Series and Identification

A97L-0203 Series (X and Z Axis)
This series includes models such as A97L-0203-0306#700 XBS (X-axis) and A97L-0203-0383# ZBS (Z-axis). These are original components that ensure high-accuracy linear motion for CNC machine axes?. The part numbers often correspond to standard industry specifications, such as W2505C-75PSS-C5Z12, which indicates a ball screw with a 25mm diameter, 5mm lead, and C5 precision grade?.

A97L-0201 Series
This series covers a broader range of components including ball screws and guide rails for various axes, such as the A97L-0201-0735#14IBZLM for the Z-axis guide rail?.

SBN Series (High Precision)
The SBN series, such as the SBN2512XS, represents a high-precision option often used in FANUC Robodrill machines. This series is available in the highest precision class (C3) and offers superior wear resistance for demanding applications?.

3. Application Context and Function

Ball screws are the critical component that transforms a motor’s rotational energy into the precise linear movements required for cutting, milling, and other machining operations?. The Z-axis ball screw in particular is responsible for vertical movement, which can be subjected to significant loads and requires low friction for smooth operation?. In many machines, replacing a worn or damaged Z-axis ball screw is a routine, albeit involved, maintenance procedure essential for restoring accuracy and eliminating backlash?.

Selection Guide – Understanding the Naming Convention (FANUC A97L- Series)

FANUC ball screw part numbers contain key specifications for identification. Understanding the coding helps rapid selection.

Part Number Format:?A97L-0203-xxxx#xxx X/Y/ZBS

Model Decoder Examples:

Precision Grade Reference: