Structural, Motion Hardware

Part Number	Description / PDF	Quantity
1997 Pololu Corporation	4MM SHAFT M3 HOLES 2PK MNTG HUB	505
3435 Pololu Corporation	STND-SIZE SERVO MTG BRKT	453
2678 Pololu Corporation	SHARP DISTANCE SENSOR BRKT PAIR	408
1428 Pololu Corporation	WHEEL 70X8MM PAIR - BLUE	354
3526 Pololu Corporation	BLUE ROMI CHASSIS MTR CLIP 2PK	35
1996 Pololu Corporation	3MM SHAFT M3 HOLES 2PK MNTG HUB	643
3521 Pololu Corporation	PINK ROMI CHASSIS MTR CLIP 2PK	169
2691 Pololu Corporation	1" PLASTIC BALL CASTER	236
2314 Pololu Corporation	GLIDEFORCE ACTUATOR MTG BRKT	44
1454 Pololu Corporation	WHEEL 40X7MM PAIR - WHITE	242
1431 Pololu Corporation	WHEEL 80X10MM PAIR - RED	270
955 Pololu Corporation	BALL CASTER WITH 3/4" METAL BALL	413
1425 Pololu Corporation	WHEEL 70X8MM PAIR - BLACK	509

Structural, Motion Hardware

1. Overview

Structural hardware refers to components that provide mechanical support, fixation, or load-bearing functions in systems. Motion hardware enables controlled movement, positioning, or transmission of mechanical energy. Both categories are critical in automation, robotics, aerospace, and industrial machinery, ensuring precision, durability, and system integration.

2. Main Types and Functional Classification

Type	Function Features	Application Examples
Structural Fasteners	High-load bearing, vibration resistance, corrosion protection	Aerospace frame assembly, automotive chassis
Linear Guides	Low-friction linear motion control, high positioning accuracy	CNC machine tools, 3D printers
Ball Screws	Convert rotary to linear motion with 90%+ efficiency	Industrial robots, semiconductor manufacturing equipment
Shaft Couplings	Transmit torque while compensating for misalignment	Conveyor systems, packaging machinery

3. Structure and Components

Structural hardware typically includes threaded elements (bolts, screws), anchoring mechanisms, and load-distributing washers. Motion hardware combines precision-machined rails, recirculating ball bearings, and hardened steel shafts. Advanced systems integrate sensors and smart materials for adaptive control.

4. Key Technical Specifications

Parameter	Description	Importance
Load Capacity	Maximum static/dynamic force withstandable	Determines operational safety and lifespan
Positioning Accuracy	Micron-level deviation tolerance	Critical for semiconductor and optical equipment
Friction Coefficient	0.001-0.01 range for rolling elements	Impacts energy efficiency and heat generation
Corrosion Resistance	Measured by salt spray test duration	Essential for marine/chemical environments

5. Application Fields

Industrial Automation: Collaborative robots, AGV navigation
Aerospace: Satellite deployment mechanisms, aircraft actuation systems
Medical Equipment: MRI scanner positioning stages, surgical robots
Renewable Energy: Solar tracker orientation systems, wind turbine pitch control

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Technical Highlights
THK Co., Ltd.	HSR Linear Guides	World's first self-lubricating rail system
MISUMI	Ball Screw Support Units	Integrated angular contact bearings
Bosch Rexroth	IndraDrive Motion Controllers	Integrated safety functions up to SIL-3

7. Selection Guidelines

Consider operating environment (temperature, humidity), load dynamics (shock, vibration), and precision requirements. For example, cleanroom applications require non-outgassing materials, while outdoor installations demand IP67-rated enclosures. Cost optimization can be achieved through standardized component selection.

8. Industry Trends

Key developments include additive manufacturing of lattice-structured supports, IoT-enabled condition monitoring systems, and bio-inspired adhesives replacing traditional fasteners. The market is projected to grow at 5.8% CAGR through 2030, driven by Industry 4.0 automation demands.