POM Sleeve Bearing uxcell 6pcs Self Lubricating Bushings 12x14x20mm

Description

Product Overview

The uxcell POM sleeve bearing is engineered to deliver dependable performance across a broad spectrum of mechanical applications. Crafted from high‑quality polyoxymethylene (POM), the material offers exceptional rigidity, low friction, and excellent wear resistance, making it ideal for both heavy‑duty industrial machinery and precision hobby projects. Each bearing measures 12 × 14 × 20 mm (inner diameter × outer diameter × length), a size that balances compactness with load‑bearing capacity, allowing it to accommodate shafts up to 12 mm in diameter while providing a robust outer surface of 14 mm. The pack includes six identical units, ensuring you have sufficient inventory for multi‑axis assemblies, replacement stock, or batch production runs. The self‑lubricating nature of POM eliminates the need for external greases or oils, reducing maintenance intervals and simplifying installation. Moreover, the material’s inherent chemical resistance protects the bearing from moisture, solvents, and most industrial chemicals, extending service life even in harsh environments. The design incorporates a smooth internal bore that minimizes shaft wear, while the external surface is precisely machined to maintain concentricity and balance, which is critical for high‑speed rotation and linear motion systems. In addition to the core dimensions, the product specifications include a package weight of 0.35 ounces and compact dimensions of 4.76 × 3.82 × 0.71 inches, facilitating easy storage and handling. The uxcell brand, known for its commitment to quality control, subjects each bearing to rigorous testing for dimensional accuracy, load capacity, and durability before shipment, ensuring consistent performance across every unit.

Usage

These POM sleeve bearings excel in a variety of settings where smooth, low‑friction motion is essential. In industrial automation, they are commonly employed as guide elements in linear actuators, conveyor systems, and robotic arms, where they help maintain precise alignment and reduce wear on moving parts. Their self‑lubricating property makes them especially valuable in environments where regular maintenance is impractical, such as sealed enclosures or remote installations. For DIY enthusiasts, the bearings are perfect for building 3D printer extruders, CNC machine components, and custom hobby‑grade gearboxes, providing reliable performance without the need for complex lubrication schemes. They also serve well in household appliances, including washing machine drum supports, dryer rollers, and vacuum cleaner brush rolls, where they contribute to quieter operation and longer component life. The 12 × 14 × 20 mm size fits a wide range of standard shafts, allowing seamless integration into existing designs or new prototypes. Because the POM material is electrically insulating, these bearings can be used in applications where electrical isolation is required, such as in certain medical devices or electronic equipment housings. The versatility of the bearing extends to agricultural machinery, where they can be installed in seed dispensers, sprayers, and harvesting equipment to improve reliability under dusty or wet conditions. Overall, the bearing’s ability to reduce friction, resist corrosion, and operate without additional lubrication makes it a cost‑effective solution for both high‑volume production lines and low‑volume custom projects.

Why Choose Us

Choosing uxcell means selecting a partner that prioritizes engineering excellence, rigorous quality assurance, and responsive customer support. Every bearing is manufactured under controlled conditions that adhere to international standards for polymer processing, ensuring uniform material density and consistent mechanical properties. The company employs advanced extrusion and machining technologies to achieve tight tolerances, typically within ±0.02 mm for critical dimensions, which translates to smoother operation and reduced vibration in assembled systems. In addition to the manufacturing precision, uxcell implements a multi‑stage inspection process that includes dimensional verification, surface finish assessment, and load testing, guaranteeing that each bearing meets or exceeds the advertised specifications. The brand’s reputation is reinforced by a transparent supply chain, where raw material sourcing is documented and traceable, providing confidence that the POM used is free from contaminants that could compromise performance. Customer service is a cornerstone of uxcell’s business model; a dedicated technical support team is available to assist with installation guidance, compatibility questions, and troubleshooting, ensuring that users can maximize the value of their purchase. Moreover, the company offers a straightforward return policy and warranty coverage for manufacturing defects, underscoring its commitment to long‑term satisfaction. By selecting uxcell POM sleeve bearings, you benefit from a product that combines material science, precision engineering, and comprehensive after‑sales support, delivering reliable operation throughout the product’s lifecycle.

Key Features

• Self‑lubricating POM material eliminates the need for external greases, reducing maintenance time and cost.
• High wear resistance ensures long service life even in abrasive or high‑temperature environments.
• Precise 12 × 14 × 20 mm dimensions provide a perfect fit for standard shafts, simplifying installation.
• Six‑piece packaging offers convenient bulk supply for multi‑axis projects or replacement stock.
• Dedicated uxcell technical support and warranty provide confidence and assistance after purchase.

FAQ

What makes POM a good choice for sleeve bearings?

POM, also known as acetal, combines high stiffness, low friction, and excellent chemical resistance. Its self‑lubricating nature means the bearing can operate without additional oils, which reduces contamination risk and maintenance effort. The material also tolerates a wide temperature range, typically from –40 °C to +120 °C, making it suitable for many industrial and consumer applications.

Can these bearings be used on shafts larger than 12 mm?

The specified inner diameter of 12 mm is designed for optimal performance with shafts up to that size. Using a larger shaft may result in excessive clearance, leading to reduced load capacity and increased vibration. For larger shafts, it is recommended to select a bearing with a matching inner diameter to maintain proper fit and functionality.

How do I install the bearings without damaging them?

Installation should be performed using a gentle press or a bearing installation tool to avoid applying uneven forces that could deform the POM material. Align the bearing with the shaft and apply steady pressure, ensuring the inner bore slides smoothly onto the shaft. Avoid using excessive force or hammering, as this can cause micro‑cracks or distort the precise dimensions.

Are these bearings suitable for high‑speed applications?

Yes, the low coefficient of friction and precise machining of the POM sleeve bearing allow it to operate at high rotational speeds. However, the maximum speed rating depends on the load and operating temperature. For most standard applications, speeds up to 5,000 rpm are achievable without compromising performance, provided the bearing is properly mounted and the shaft is balanced.

What warranty does uxcell provide for these bearings?

uxcell offers a one‑year limited warranty covering manufacturing defects. If a bearing fails due to material or workmanship issues within the warranty period, the company will replace the defective unit at no additional cost. Customers should retain the original packaging and proof of purchase when requesting warranty service.