Precision Trackballs – Optical and Mechanical Trackball Spheres
SDBALLS supplies precision trackball spheres for optical and mechanical pointing systems, computer peripherals, industrial controls, human-machine interfaces and medical equipment. Standard diameters from 14 mm to 55 mm are available with controlled diameter and roundness, smooth high-gloss surfaces and project-based colour, pattern and logo customization.
| Artículo | Contenido recomendado de la página |
| Nombre del producto | Precision trackball spheres |
| Material | Unsaturated polyester resin |
| Standard Diameters | 14 / 19 / 25 / 34 / 40 / 44 / 52 / 55 mm |
| Tolerancia de diámetro | +/-0.05 mm |
| Redondez | Up to 40 mm: 0.05 mm max; above 40 mm: 0.07 mm max |
| Aplicaciones típicas | Computer peripherals, industrial controls, HMI, medical equipment and custom OEM systems |
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Descripción general del producto
A trackball is a functional interface component. Diameter, roundness, surface condition, colour and pattern can directly affect movement, sensor tracking and the user’s interaction with the finished equipment.
The current product family uses unsaturated polyester resin and supports both optical and mechanical applications. Final compatibility must be tested in the customer’s actual sensor, bearings, rollers and housing before mass production.
Functional Design and System Compatibility
- Optical systems require a surface and pattern that the selected sensor can track consistently.
- Mechanical systems depend on diameter, roundness, surface smoothness and stable contact with rollers or bearings.
- Pantone-based colours, selected printed patterns, graphics and logos can be evaluated for OEM projects.
- The trackball sphere is supplied as a component. Application images must not imply that SDBALLS supplies the complete mouse, control panel or medical equipment.
Especificaciones técnicas
The values below are product-family references. The quotation, drawing, agreed standard and inspection plan control the final supply specification.
| Parámetro | Typical SDBALLS Supply Range or Note |
| Producto | Precision trackball sphere |
| Material | Unsaturated polyester resin |
| Standard Diameters | 14 / 19 / 25 / 34 / 40 / 44 / 52 / 55 mm |
| Popular Size | 34 mm for mouse and computer peripheral applications |
| Tolerancia de diámetro | +/-0.05 mm |
| Roundness up to 40 mm | 0.05 mm max |
| Roundness above 40 mm | 0.07 mm max |
| Standard Surface | Smooth high-gloss finish |
| Optional Surface | Sandblasted surface subject to project review |
| Colour | Custom colours based on Pantone references |
| Pattern and Logo | Selected patterns, graphics and logos by project review |
| System Type | Optical and mechanical |
| Standard MOQ | Typically 1,000 pieces |
| Small Quantity | Approximately 200-300 pieces may be possible from stock or compatible production |
| Samples | Available; charge and lead time depend on specification |
| Documents | RoHS and REACH status to be confirmed for the current material and test cycle |
Applications and Application Fit
Application names are selection guides, not universal approval. Confirm the actual load, media, temperature, pressure, service life and compliance requirements.
| Solicitud | Por qué encaja | Nota para el comprador |
| Computer peripherals | Mouse and specialist pointing devices | Confirm diameter, sensor and appearance |
| Industrial controls and HMI | Operator panels, control consoles and rugged equipment | Validate movement, sealing and service environment |
| Equipos médicos | User-interface trackball assemblies | Confirm cleaning media, compliance and device validation |
| Custom OEM equipment | Specialized interfaces requiring custom size, colour or pattern | Approve samples before production |
| Replacement projects | Legacy equipment and repair programs | Provide an original sample, dimensions and system details |
Guía de Selección de Materiales
| Opción de material | Primary Advantage | Limitación | Typical Fit |
| Unsaturated polyester trackball | High-gloss finish and colour or pattern customization | Compatibility must be proven in the actual system | Optical and mechanical trackball assemblies |
| POM engineering ball | Low friction and dimensional stability | Different optical and cosmetic behaviour | Valves, bearings and sliding mechanisms |
| Stainless steel ball | Strength, weight and wear resistance | High density and limited colour customization | Mechanical components rather than typical optical trackballs |
| Bola de cerámica | Hardness, wear resistance and electrical properties | Brittle and higher cost | High-performance bearings and special mechanisms |
Manufacturing and Process Control
A project may include resin formulation and colour control, forming or casting, curing, precision grinding, polishing, pattern or logo processing, cleaning and final inspection. Process details and appearance limits must follow the approved sample and purchase specification.
Quality Control and Inspection
- Diameter and tolerance inspection
- Roundness inspection
- Surface and visual inspection
- Colour sample approval when applicable
- Pattern or logo approval when applicable
- Functional testing in the customer’s assembly
- Batch identification and document-status confirmation
Opciones de Embalaje
Use individual separators, trays, clean bags, cartons or customer-specific packaging according to diameter, surface sensitivity and quantity. Protect high-gloss and printed surfaces from scratching, rubbing and colour transfer during transport.
Cómo Especificar para una Cotización
Ask the buyer to provide the following information so the sales and engineering teams can confirm the correct material and production route.
- Required diameter
- Quantity and annual forecast
- Optical or mechanical application
- Sensor or assembly information
- Colour and Pantone reference
- Acabado superficial
- Pattern, graphic or logo files
- Sample quantity and approval method
- Documentation, packing and destination
Preguntas frecuentes técnicas
Q What standard trackball sizes are available?
A Standard diameters are 14, 19, 25, 34, 40, 44, 52 and 55 mm.
Q What material is used?
A The current standard product series is made from unsaturated polyester resin.
Q What are the standard tolerance and roundness?
A Diameter tolerance is +/-0.05 mm. Roundness is 0.05 mm maximum up to and including 40 mm and 0.07 mm maximum above 40 mm.
Q Can colours, patterns or logos be customized?
A Pantone-based colours and selected patterns, graphics and logos can be evaluated. Final appearance must be approved from physical samples.
Q Are these trackballs suitable for optical and mechanical systems?
A The product family serves both system types, but final compatibility must be validated in the customer’s actual sensor and assembly.
Q What are the MOQ and sample options?
A Standard MOQ is typically 1,000 pieces. Samples are available, and approximately 200-300 pieces may sometimes be supplied when stock or compatible production is available.
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