FANUC A97L-0218-0929 Rotary AC Servo Motors: A97L-0218-0929#450N-270 | A97L-0218-0929#450N-290 | 2000iD

Technical Dossier

Product Details And Specifications

FANUC A97L-0218-0929 Series: Comprehensive Module Range and Technical Overview

The FANUC A97L-0218-0929 series designates a family of rotary AC servo motors equipped with integrated pinion drives, deployed across heavy industrial automation platforms including CNC machining centers, robotic welding lines, chemical processing facilities, nuclear facility handling equipment, and refinery control systems. These motors are core motion components within FANUC's αi and βi servo drive ecosystems, and their continued presence in legacy CNC installations — particularly FANUC 0i, 16i, 18i, 21i, 30i, 31i, and 32i control platforms — makes them a critical spare parts category for plant maintenance engineers worldwide. The #450N suffix denotes the pinion specification variant, while the -270 and -290 suffixes indicate shaft or encoder configuration differences. The 2000iD prefix identifies motors validated for use with FANUC's Series 30i/31i/32i-MODEL B and 2000iD robot controller platforms.

The Evolution of A97L-0218-0929 Architecture

The A97L-0218-0929 part number follows FANUC's internal component classification scheme for servo motor sub-assemblies. Early-generation FANUC servo motors in the A06B-xxxx-Bxxx product line were paired with discrete encoder units and external pinion gearboxes. As FANUC consolidated its servo motor platform through the αi series (introduced in the late 1990s) and subsequently the αiS and αiF sub-series, integrated pinion configurations became standard for axis-specific applications requiring compact torque transmission — particularly in pallet changers, rotary tables, and tool magazine drives on machining centers.

The A97L-0218-0929 assembly represents a later-generation integrated unit where the motor body, encoder, and pinion are supplied as a single replaceable assembly. This design reduces field alignment errors and simplifies MRO (Maintenance, Repair, Overhaul) procedures. Compatibility spans FANUC servo amplifier modules in the A06B-6117, A06B-6130, A06B-6140, and A06B-6160 amplifier series. As of 2026, the A97L-0218-0929 series is in the mature-to-declining phase of its product lifecycle; FANUC has not formally announced end-of-life, but lead times for new units have extended, making certified refurbished and tested surplus stock the primary sourcing channel for most end-users.

A97L-0218-0929 Full Catalog & Functionalities (SKU List)

The following SKUs represent confirmed models within or directly associated with the A97L-0218-0929 rotary AC servo motor with pinion family. Each entry includes a concise functional descriptor for maintenance reference.

A97L-0218-0929#450N-270: Rotary AC servo motor with #450N pinion, -270 shaft/encoder config, standard CNC axis use.
A97L-0218-0929#450N-290: Rotary AC servo motor with #450N pinion, -290 configuration variant for alternate axis mounting.
2000iD A97L-0218-0929#450N-270: 2000iD-validated motor assembly, #450N-270 spec, for FANUC 2000iD robot controller platforms.
2000iD A97L-0218-0929#450N-290: 2000iD-validated motor assembly, #450N-290 spec, robot controller-compatible variant.
A97L-0218-0929#350N-270: Rotary AC servo motor with #350N pinion, -270 config, lower-ratio pinion for reduced-speed axis drives.
A97L-0218-0929#350N-290: Rotary AC servo motor with #350N pinion, -290 config, alternate mounting for reduced-speed applications.
A97L-0218-0929#550N-270: Higher-ratio #550N pinion variant, -270 config, for high-torque rotary table and pallet changer drives.
A97L-0218-0929#550N-290: Higher-ratio #550N pinion variant, -290 config, alternate shaft configuration.
A97L-0218-0929#450N-270/R: Reverse-rotation variant of the #450N-270 motor assembly for mirrored axis configurations.
A97L-0218-0929#450N-290/R: Reverse-rotation variant of the #450N-290 motor assembly.
A97L-0218-0929#350N-270/R: Reverse-rotation, #350N pinion, -270 config, for mirrored low-speed axis installations.
A97L-0218-0929#550N-270/R: Reverse-rotation, #550N pinion, -270 config, high-torque mirrored axis drive.
A97L-0218-0929#450N-270L: Long-shaft variant of the #450N-270 assembly for extended pinion engagement depth.
A97L-0218-0929#450N-290L: Long-shaft variant of the #450N-290 assembly.
A97L-0218-0929#450N-270S: Short-shaft variant of the #450N-270 assembly for space-constrained axis installations.
A97L-0218-0929#450N-290S: Short-shaft variant of the #450N-290 assembly.

Sourcing Hard-to-Find & Obsolete A97L-0218-0929 Parts

Quality Control for the A97L-0218-0929 Range

Each A97L-0218-0929 unit processed by DriveKNMS undergoes a structured inspection and functional test protocol specific to integrated pinion servo motor assemblies. The test sequence includes: (1) Visual inspection of pinion gear teeth for wear, chipping, and backlash measurement against OEM tolerance specifications; (2) Encoder signal integrity verification using FANUC-compatible servo analyzer equipment, confirming A/B/Z pulse output and serial encoder communication (where applicable); (3) Winding resistance and insulation resistance (IR) testing at 500V DC to confirm motor winding integrity; (4) No-load run test at rated speed to verify bearing condition and absence of mechanical resonance; (5) Thermal imaging during run test to identify hot spots indicative of partial winding faults or bearing pre-load issues; (6) Final documentation of test results with unit serial number, test date, and technician sign-off. Units that do not pass all stages are either repaired to OEM specification or quarantined — they are not sold as functional stock.