Polyacetal (Delrin/Acetal) (POM) Precision Plastic Balls - Metric

In stock - 790 items available
SKU: POMBALM01
Regular price $0.16

Our metric acetal precision balls combine low friction, wear resistance, and dimensional stability for smooth, consistent movement in mechanical assemblies. Made from polyoxymethylene (POM), also known as polyacetal, these lightweight plastic balls offer a practical alternative to metal balls where reduced weight and resistance to rust are priorities.

POM’s low moisture absorption helps limit dimensional changes in humid environments, while its strength and rigidity support repeated mechanical contact. These precision plastic balls are suitable for applications such as bearing assemblies, check valves, detent mechanisms, and sliding components, subject to operating loads and fluid compatibility.

Key Features

  • Low-friction material: Supports smooth rolling and sliding movement.
  • Good wear resistance: Suited to components exposed to repeated contact.
  • Dimensional stability: Low moisture absorption helps maintain consistent fit.
  • Lightweight construction: Reduces component weight compared with steel balls.
  • Chemical resistance: Resists many oils, fuels, and solvents, subject to compatibility.
  • Metric diameters: For integration into assemblies designed around millimeter dimensions.
  • Type Precision Balls
  • SKU POMBALM01
  • Material Polyacetal (POM)
  • Color
    • White
  • Measurement System Metric

Material: Polyacetal (POM)

Continuous use temperature: 95°C/203°F

Flammability: UL94 HB

Tensile Strength: 60MPa

Return components within 90 days for a full refund. Please see our returns terms and conditions for further information.

Diameter (mm) Tolerance (mm)
2 ±0.02
3 ±0.02
5 ±0.02
8 ±0.02
10 ±0.02
11 ±0.02
12 ±0.02
15 ±0.02
35 ±0.05

Polyacetal (POM)

Key Properties & Applications
Properties Applications

- Low Coefficient of Friction
- Excellent Wear & Abrasion Resistance
- Low Thermal Conductivity
- Excellent Electrical Insulation

- Precision Engineering Equipment
- Automotive Assemblies
- Conveyor Systems
- Industrial Automation Equipment

Custom Manufacturing Solutions

Every project is unique — so why settle for standard parts?

Our custom manufacturing service delivers precision-engineered components tailored to your exact requirements. With low minimum order quantities and scalable production capacity, we support everything from prototypes to high-volume manufacturing.

Request a Quote

Technical Excellence in Every Component.

With extensive material knowledge, consistent product quality, and high-volume capability, we support manufacturers with polymer components they can rely on.

Get in touch to discuss your project:

Indisputable Quality

Visual, dimensional and destructive testing on all products.

Free Shipping

Free shipping on orders over $250.

Direct Customer Service

Send us an email or call us.