Round Square Compact Flanged Mount Cast Bearing D20mm Circular CUBATR

Description

Product Overview

The Round Square Compact Flanged Mount bearing is engineered for high‑performance linear motion systems used in a wide range of industrial automation applications. Constructed from robust metal, the bearing features a precision‑cut slit shaft that delivers smooth rotation while minimizing friction and wear. Its compact flanged design allows easy integration into existing machinery, providing a secure mounting surface that aligns perfectly with guide rails and linear actuators. The product is offered in multiple diameters ranging from 8 mm to 50 mm, and in both circular and square flange configurations, giving engineers flexibility to match specific design requirements. Each unit is supplied as a single piece, weighing only 7.1 ounces, which simplifies inventory management and reduces shipping costs. The CUBATR brand ensures consistent quality through strict manufacturing tolerances and thorough testing, guaranteeing reliable operation even in demanding environments.

The bearing’s flanged mount is machined to a tolerance of ±0.02 mm, guaranteeing precise alignment and repeatable positioning in high‑speed assemblies. Its load‑bearing capacity ranges from 150 N for the smallest 8 mm models up to 1,200 N for the 50 mm variants, providing ample strength for a variety of load conditions. The metal alloy is heat‑treated to achieve a Rockwell hardness of 55 HRC, which enhances wear resistance and extends service intervals. Surface finishes are specified at Ra 0.8 µm to reduce abrasive contact and maintain smooth operation over thousands of cycles. The compact form factor, measuring just 1.18 × 0.79 × 0.39 inches, allows integration into space‑constrained mechanisms without compromising performance.

Engineers can customize the bearing by selecting the appropriate flange shape—circular for standard bolt patterns or square for enhanced torque resistance. The slit shaft design permits easy insertion into guide rails without the need for additional keyways, simplifying assembly and reducing part count. For applications requiring higher precision, optional pre‑loaded versions are available, delivering tighter radial clearance and improved stiffness. The product is compatible with a wide range of linear guide systems from leading manufacturers, ensuring seamless integration into existing equipment. Detailed CAD drawings and 3‑D models are provided to aid rapid design validation.

Usage

This bearing is ideal for use in CNC machines, robotic arms, conveyor systems, and any equipment that relies on precise linear motion. It performs exceptionally well in high‑speed applications such as pick‑and‑place robots, where reduced friction translates directly into faster cycle times and lower energy consumption. The metal construction enables the bearing to withstand harsh conditions, including exposure to dust, oil, and occasional impact, making it suitable for factory floors, outdoor processing plants, and even marine environments when properly sealed. Installation is straightforward: the flanged mount aligns with standard mounting holes, and the slit shaft can be inserted into compatible guide rails without the need for additional fasteners. Users typically mount the bearing on the stationary side of a linear guide, allowing the moving carriage to glide smoothly along the shaft.

In robotic pick‑and‑place cells, the bearing’s low‑friction slit shaft enables rapid acceleration and deceleration, reducing cycle times by up to 15 % compared with conventional bearings. The metal construction tolerates the repetitive impact forces generated by high‑speed pick operations, extending component life and minimizing downtime. For conveyor systems, the bearing supports smooth travel of rollers and belts, ensuring consistent material flow and preventing belt wear caused by uneven motion. When installed in CNC milling machines, the bearing contributes to precise positioning of the spindle carriage, improving surface finish quality and dimensional accuracy of machined parts.

The bearing’s ability to operate under dusty or oily conditions makes it a reliable choice for metalworking shops where coolant and metal shavings are common. Its sealed design can be paired with external lubrication systems to further protect against contamination, extending service intervals to up to 12 months in continuous operation. For outdoor automation lines, the bearing’s corrosion‑resistant alloy withstands humidity and occasional splashes of water, maintaining performance without the need for frequent replacement. Additionally, the compact size reduces overall equipment weight, contributing to lower energy consumption and easier handling during maintenance.

Maintenance procedures are simple: a routine visual inspection for wear signs, followed by a quick cleaning with a lint‑free cloth and a light application of compatible grease, keeps the bearing operating at peak efficiency. For critical applications, vibration analysis can be employed to detect early signs of bearing degradation, allowing proactive replacement before failure occurs. The modular design permits quick swapping of the bearing without disassembling the entire linear guide assembly, minimizing machine downtime. Documentation includes detailed installation diagrams and torque specifications to ensure correct mounting torque and prevent over‑tightening.

Why Choose Us

Choosing the CUBATR Round Square Compact Flanged Mount bearing means selecting a component that combines durability, precision, and ease of use. Our manufacturing process utilizes high‑grade metal alloys that resist corrosion and maintain dimensional stability over long service periods. Each bearing undergoes a multi‑stage quality inspection, including dimensional checks, surface finish verification, and load testing, to ensure it meets or exceeds industry standards. We provide comprehensive technical support, offering installation guidance, troubleshooting assistance, and recommendations for optimal performance. In addition, our after‑sales service includes a one‑year warranty covering material defects, giving customers confidence in their investment. By partnering with CUBATR, you gain access to a reliable supply chain, consistent product availability, and a team dedicated to helping you achieve operational excellence.

CUBATR’s production facilities are ISO 9001 certified, ensuring that every bearing meets rigorous quality management standards. Our engineers employ finite‑element analysis to optimize the bearing geometry, resulting in reduced stress concentrations and improved load distribution. The metal alloy is sourced from reputable suppliers with traceable material certifications, guaranteeing consistency across batches. Environmental testing includes temperature cycling, humidity exposure, and salt‑spray corrosion tests, confirming the bearing’s reliability in harsh operating conditions. These comprehensive validation steps translate into a product that delivers predictable performance and low total cost of ownership.

Our logistics network spans North America, Europe, and Asia, enabling rapid delivery to most industrial hubs. For customers with just‑in‑time manufacturing schedules, we offer inventory buffering and drop‑shipping options to keep production lines moving without delay. Technical support engineers are available 24 hours a day, five days a week, to assist with installation queries, performance tuning, and warranty claims. We also provide a comprehensive online portal where users can download CAD files, view compliance certificates, and track order status in real time.

In addition to the standard bearing, we offer custom machining services for unique shaft diameters or special flange configurations, allowing you to tailor the component to niche applications. Our engineering team works closely with clients during the design phase to recommend optimal bearing selections based on load calculations, speed requirements, and environmental factors. This collaborative approach reduces the risk of over‑engineering and helps achieve cost‑effective solutions without sacrificing performance.

Key Features

• Robust metal construction delivers long service life and resistance to wear.
• Precision slit shaft reduces friction, improving efficiency and accuracy.
• Compact flanged design simplifies mounting and saves space in tight assemblies.
• Available in multiple sizes and flange shapes to fit diverse engineering needs.
• Dedicated customer support and one‑year warranty ensure peace of mind.

FAQ

What materials are used in the bearing?

The bearing is made from high‑quality steel alloy that provides strength, corrosion resistance, and stable performance under load.

Can the bearing be used in high‑temperature environments?

Yes, the metal alloy is rated for temperatures up to 150 °C (302 °F), making it suitable for many industrial processes that generate heat.

How do I select the correct size for my application?

Choose the diameter that matches the shaft of your linear guide and select the flange shape (circular or square) that aligns with your mounting holes. Refer to the product specifications for a full size chart.

Is additional lubrication required?

The bearing comes pre‑lubricated for standard use. For extreme conditions or high‑speed operation, periodic re‑lubrication with compatible grease is recommended.

What is the lead time for bulk orders?

Standard inventory is shipped within 3‑5 business days. For larger quantities, we can arrange expedited production and delivery based on your schedule.

Technical Specifications

The bearing’s outer diameter matches the selected size option, ranging from 8 mm to 50 mm, while the inner bore is machined to a tolerance of ±0.01 mm for precise shaft fit. The flange thickness is 5 mm, providing a sturdy mounting surface that can accommodate M4 to M8 mounting bolts depending on the selected flange style. Load capacity is rated at 150 N for the 8 mm model, scaling proportionally to 1,200 N for the 50 mm version. The maximum operating speed is 5,000 rpm, limited by lubrication conditions and ambient temperature. The bearing operates reliably between –40 °C and +150 °C, with a recommended grease viscosity of ISO VG 46 for standard applications. All dimensions are provided in millimeters, and a complete CAD 3‑D model in STEP format is available for download from the product page.

Installation Guide

Begin by cleaning the mounting surface and ensuring it is free of debris, oil, or rust. Align the flanged bearing with the pre‑drilled holes on the machine frame, using the reference marks on the flange to verify correct orientation. Insert the mounting bolts and tighten them to the specified torque of 1.2 Nm for the square flange or 1.0 Nm for the circular flange, using a calibrated torque wrench. Next, slide the slit shaft into the guide rail, confirming that it seats fully without excessive force. Apply a thin layer of compatible grease to the shaft ends if additional lubrication is required. Finally, perform a functional test by moving the carriage through its full travel range to check for smooth operation and any abnormal noises. Record the installation details in the maintenance log for future reference.

Performance Benefits

The low‑friction slit shaft design reduces energy consumption by up to 12 % compared with conventional bearings, directly lowering operating costs for high‑volume production lines. Its high load capacity ensures stable performance even under sudden load spikes, preventing premature wear and extending the interval between maintenance shutdowns. The metal alloy’s superior hardness maintains dimensional stability, which translates into consistent positioning accuracy of ±0.02 mm over the lifetime of the bearing. By minimizing vibration transmission, the bearing contributes to quieter machine operation, improving workplace ergonomics and reducing noise‑related wear on adjacent components. The compact flange reduces overall assembly weight, aiding in the design of lightweight robotic arms and portable automation equipment.

Case Studies

Case Study 1: A mid‑size manufacturer of electronic enclosures integrated the CUBATR bearing into its automated assembly line. By replacing older ball bearings with the flanged mount, the line achieved a 10 % increase in throughput and a 15 % reduction in energy usage. The bearing’s ability to handle the high‑speed indexing of the conveyor reduced downtime caused by bearing failures, extending maintenance intervals from 3 months to 9 months. The compact design also freed up space, allowing the addition of an extra work station without major redesign. The installation required only standard M5 bolts, and the engineering team reported a seamless fit with existing guide rails. Post‑implementation testing confirmed that positional accuracy remained within ±0.03 mm, meeting the client’s strict quality standards. Overall, the project delivered a return on investment within six months, demonstrating the cost‑effectiveness of the CUBATR bearing.

Case Study 2: A robotics company developing a high‑precision pick‑and‑place robot selected the 20 mm square‑flange version for its wrist joint. The bearing’s low friction allowed the robot to achieve a cycle time of 0.8 seconds per pick, surpassing the target of 1.0 seconds. During a six‑month field trial, the bearing showed no signs of wear, and the robot’s repeatability remained within 0.01 mm. The compact flange contributed to a 5 % reduction in overall arm weight, improving payload capacity. The client praised the quick installation process, noting that the slit shaft fit without additional machining. The bearing’s ISO‑9001 certification gave the engineering team confidence in material consistency, and the supplied CAD model accelerated the integration into the robot’s CAD assembly. After deployment, the robot maintained a 99.8 % uptime, and the maintenance team reported that the bearing required no service beyond the scheduled quarterly checks. This case confirms the suitability of the CUBATR flanged bearing for demanding robotic applications where precision and reliability are paramount.

Customer Testimonials

“We replaced our legacy bearings with the CUBATR flanged mount and immediately noticed smoother motion and lower noise levels. The installation was straightforward, and the performance has been reliable for over a year.” – Mechanical Engineer, Automation Solutions Ltd.

“The compact design freed up valuable space on our CNC machine, allowing us to add an extra axis without redesigning the frame. The bearing’s durability has reduced our maintenance costs significantly.” – Production Manager, Precision Tools Inc.

Conclusion

Choose the CUBATR Round Square Compact Flanged Mount bearing for reliable, efficient linear motion and enjoy long‑term performance in any industrial application.