Of machines for balancing mechanical parts
Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: > Parts and accessories: > Other: > Other > Of machines for balancing mechanical parts
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9031.90.91.30
GE Power Bently Nevada Balancing Probe Assembly
Proximity probe assembly from Bently Nevada for GE gas turbine balancing machines, measuring rotor displacement during balancing operations on mechanical parts. Includes cabling and mounting fixtures specific to the machine frame. HTS 9031.90.91.30 applies as parts principally used with mechanical balancing apparatus.
P&B Engineering Balancer Spindle Cartridge
Precision spindle cartridge assembly for P&B high-speed balancing machines used on aerospace mechanical parts like turbine blades. Features angular position encoders for phase measurement during balancing. HTS 9031.90.91.30 classification for dedicated balancing machine parts.
Sperry Rail Service Balancer Encoder Ring
Incremental encoder ring for Sperry Rail wheelset balancing machines used on locomotive mechanical parts. Provides precise angular reference for unbalance phase measurement. HTS 9031.90.91.30 as encoder accessory principally for balancing machines.
American Hofmann Field Balancing Data Acquisition Module
Compact data acquisition module for American Hofmann portable field balancing kits used on in-situ mechanical parts like ship propellers. Processes vibration signals for on-site correction. HTS 9031.90.91.30 for balancing machine electronics.
Schenck Balancing Machine Workhead Assembly
This workhead assembly is a core component of Schenck balancing machines used for precision measurement and correction of unbalance in rotating mechanical parts like rotors and flywheels. It holds the part securely during high-speed rotation while sensors detect vibration imbalances. Classified under HTS 9031.90.91.30 as a dedicated part of balancing machines per Chapter 90 note 2(b).
Macro Engineering Balancer Laser Alignment Tool
Laser alignment tool mount and optics assembly for Macro Engineering turbocharger balancing machines, ensuring precise mechanical part centering before measurement. Provides visible alignment reference. Classifies HTS 9031.90.91.30 as dedicated accessory.
IRIS Balancing Machine Vibration Sensor Kit
Precision piezoelectric vibration sensors and mounting hardware designed exclusively for IRIS dynamic balancing machines used on automotive crankshafts and turbine wheels. These detect unbalance signals during rotation for computerized correction. Falls under HTS 9031.90.91.30 as principal accessories for mechanical balancing machines.
Hoffmann Balancing Machine Reference Disc Set
Calibrated reference discs and calibration weights for Hoffmann vertical balancing machines used for mechanical parts like electric motor armatures. Essential for machine calibration to ensure measurement accuracy. Classified in HTS 9031.90.91.30 as accessories dedicated to balancing machines.
Universal Balancing Hard Bearing Measuring Pedestal
Hard-bearing pedestals with integral piezoelectric measuring elements for universal horizontal balancing machines handling mechanical parts from fans to pumps. Provides stable support and direct unbalance measurement. HTS 9031.90.91.30 as principal part of mechanical balancing machines.
Cimbal Balancing Complete Calibration Kit
Comprehensive calibration kit for Cimbal automotive wheel balancing machines, including test weights, positioning jigs, and reference rotors for verifying mechanical part balancing accuracy. Specific to machine models used in tire service. Under HTS 9031.90.91.30 for balancing machine accessories.
Gaging Balancing Machine Safety Guard with Interlock
Transparent polycarbonate safety guard with electrical interlock switch for Gaging Technologies balancing machines, ensuring operator safety during mechanical part rotation while maintaining measurement visibility. Includes position sensors. Classifies under HTS 9031.90.91.30 as machine-specific accessory.
Balancing Technologies Polar Mass Distribution Fixture
Specialized fixture for Balancing Technologies machines that measures and displays polar mass distribution in mechanical parts like flywheels during balancing operations. Integrates with machine software for correction calculations. HTS 9031.90.91.30 for principal balancing machine accessories.
Yamaha Motor Crankshaft Balancer Test Arbor
Precision test arbor set for Yamaha motorcycle crankshaft balancing machines, simulating mechanical parts for calibration and verification of balancing accuracy. Features reference unbalance patterns. Classified HTS 9031.90.91.30 as dedicated calibration accessories.
Kent-Moore Automotive Balancer Jaw Set
Quick-change jaw sets for Kent-Moore automotive flywheel and flexplate balancing machines, precisely gripping mechanical parts during measurement cycles. Hardened steel with balancing-matched design. Under HTS 9031.90.91.30 for machine-specific workholding.
Hobart Balancer Drive Belt and Tensioner Kit
Synchronous drive belt and automatic tensioner specifically engineered for Hobart industrial fan blade balancing machines. Maintains constant speed for accurate mechanical part measurement. HTS 9031.90.91.30 classification applies.