BADGER 50-046 PTFE Needle Bearing 100/150/155/200 Grease Compatible

Description

Product Overview

The BADGER 50-046 PTFE needle bearing is a precision‑engineered component designed for demanding industrial power transmission applications. Constructed from high‑performance polytetrafluoroethylene (PTFE), the bearing offers exceptional low‑friction characteristics that reduce heat buildup, minimize wear, and extend service life even under continuous operation. Its compact dimensions—5 × 3 × 0.25 inches—and lightweight construction (4.54 g) allow installation in tight spaces where traditional steel bearings would be impractical, making it a versatile choice for a wide range of machinery.

Beyond its size, the bearing’s internal raceway is machined to tight tolerances, ensuring smooth rotation and consistent load handling across the 100, 150, 155, and 200 series shaft sizes. The PTFE material is inherently self‑lubricating, yet the design also accepts standard grease lubricants, providing flexibility for various maintenance strategies. This dual‑lubrication capability means users can benefit from the low‑friction properties of PTFE while still applying grease when higher load capacities or specific operating conditions demand it.

Manufactured by Badger Air‑Brush Co., the bearing meets the 50‑46 specification and has earned a solid reputation reflected in a 4.3‑star rating from 41 verified customer reviews. The product’s durability is further supported by its resistance to corrosion, chemicals, and moisture, attributes that are especially valuable in environments such as food processing, pharmaceutical equipment, and outdoor power tools. With a UPC of 047459500460 and a global trade identification number of 00047459500460, the bearing is easily traceable for inventory and compliance purposes.

Usage

This needle bearing excels in applications that demand high speed, low friction, and a compact form factor. Typical environments include conveyor gearboxes, motor shafts, robotic joints, precision CNC equipment, and any system where space constraints limit the use of larger bearing types. The PTFE construction resists corrosion and chemical exposure, making it appropriate for humid or chemically aggressive settings such as food processing lines, pharmaceutical manufacturing, and marine equipment.

Because the bearing accepts grease lubrication, it integrates seamlessly into routine maintenance schedules without requiring specialized lubricants. Grease can be applied using standard dispensing tools, and the bearing’s design ensures the lubricant remains in place even under high‑speed rotation, reducing the frequency of re‑lubrication and lowering overall maintenance costs. Engineers and maintenance technicians will appreciate the straightforward installation process—simply press the bearing onto the clean shaft until it seats fully, then secure it with the recommended retaining hardware. The bearing’s low profile also facilitates retrofitting into existing equipment where space is at a premium.

In addition to industrial machinery, the bearing is suitable for hobbyist and DIY projects that involve high‑precision motion, such as custom 3‑D printers, small‑scale robotics, and experimental prototypes. Its ability to operate reliably at temperatures up to approximately 260 °C (500 °F) expands its usability to applications involving moderate heat, while the PTFE material’s dielectric properties make it safe for use in electrically sensitive environments.

Why Choose Us

Choosing the BADGER 50‑046 PTFE needle bearing means selecting a component that has been manufactured in the United States to exacting quality standards. Badger Air‑Brush Co. employs rigorous testing procedures, including dimensional verification, load endurance trials, and environmental resistance assessments, to ensure each bearing meets or exceeds the 50‑46 specification. The PTFE composition provides inherent self‑lubricating properties, reducing the need for frequent re‑lubrication and lowering the total cost of ownership for end users.

The bearing’s design incorporates a smooth internal raceway that minimizes vibration and noise, contributing to quieter operation of the surrounding equipment—a critical factor in environments where acoustic performance is important, such as clean rooms or office‑adjacent manufacturing floors. Additionally, the compact size and lightweight nature of the bearing reduce the overall mass of the assembly, which can improve dynamic response and reduce energy consumption in motor‑driven systems.

Our commitment to customer support includes a responsive technical assistance team ready to help with fitment questions, installation guidance, and after‑sales service. Whether you need clarification on the appropriate grease type, advice on mounting procedures, or assistance with warranty claims, our experts are available to ensure your experience is smooth and successful. The one‑year limited warranty covers material defects and workmanship when the bearing is used according to the specified guidelines, providing additional peace of mind.

Key Features

• Low‑friction PTFE construction reduces wear and heat for longer service life
• Compact size fits into tight mechanical assemblies where space is limited
• Grease compatible design offers flexible lubrication options
• Meets 50‑46 bearing specification for reliable fit on 100‑200 series shafts
• U.S. manufactured with rigorous quality testing and dedicated customer support

FAQ

What shaft sizes are compatible with this bearing?

The BADGER 50‑046 bearing is designed for shafts in the 100, 150, 155, and 200 series, matching the standard 50‑46 bearing dimensions. It provides a snug fit that ensures optimal load distribution and smooth rotation.

Can this bearing be used with oil lubrication?

While the bearing is optimized for grease lubrication, it can operate with compatible oil lubricants if the application requires, though grease is recommended for best performance due to its ability to stay in place under high‑speed conditions.

Is the PTFE material suitable for high‑temperature environments?

PTFE maintains its low‑friction properties up to approximately 260 °C (500 °F). For applications exceeding this temperature, a different bearing material should be considered to avoid degradation.

How do I install the bearing correctly?

Press the bearing onto the clean shaft until it seats fully, then secure it with the appropriate retaining hardware. Ensure the shaft surface is smooth and free of debris to avoid premature wear and to achieve the intended load capacity.

What warranty does Badger Air‑Brush Co. provide?

The manufacturer offers a limited one‑year warranty covering material defects and workmanship when the bearing is used according to the specified guidelines. Warranty claims can be processed through the authorized distributor or directly with Badger Air‑Brush Co.