IP67 Waterproof tapped base pillow block bearing units

Precision and Protection Combined

NHK IP67 waterproof tapped base pillow block bearing units combine precision, protection, and hygienic performance for demanding production environments. These bearing units support machinery that must run reliably in wet, dusty, corrosive, and frequently cleaned areas.

Each unit uses a compact, strong bearing housing base with a bolted cover. This construction helps protect the insert bearing, grease, and housing interior from water, dust, cleaning agents, and production residues. The IP67 rating means the housing offers dust-tight protection and protection against temporary water immersion under defined IEC 60529 test conditions.

Food and pharmaceutical producers need components that support hygiene, documentation, and uptime. For that reason, these IP67 bearing units include a unique batch ID number for food safety traceability. This detail helps maintenance teams, OEMs, and quality departments document installed components during audits, inspections, and replacement planning.

Superior Durability for Harsh Environments

Wet production zones place heavy demands on bearing housings. Water, steam, detergents, disinfectants, salt, fat, sugar, acids, and temperature variation can damage standard bearing units over time.

NHK IP67 bearing units solve this challenge with a sealed, corrosion-safe, and easy-to-clean design. Smooth surfaces and rounded corners reduce dirt traps and support faster cleaning. Operators can wash down the unit from different directions without exposing the housing interior to harmful water ingress when the unit has been installed and maintained correctly.

These bearing units suit extreme environments where conventional cast iron or open bearing designs often fail. Their structure helps extend component life, reduce unplanned stops, and support sanitary machine construction.

Where IP67 Bearing Units Add Value

IP67 waterproof bearing units support rotating shafts in machines that operate near water, steam, powders, or aggressive cleaning routines. They work especially well in machinery where hygiene and durability matter equally.

Common applications include:

• Food processing conveyors
• Packaging machinery
• Meat and poultry processing lines
• Dairy filling and handling systems
• Seafood processing equipment
• Vegetable washing and grading machines
• Beverage filling and rinsing lines
• Pharmaceutical handling equipment
• Chemical and cosmetic production machinery
• Washdown conveyor systems
• Stainless steel machinery frames
• Wet-area automation systems

The tapped base pillow block design gives OEM builders a compact installation option. Maintenance teams can also use the market-standard housing dimensions for easier replacement in existing machinery.

Designed for Demanding Production Lines

Many industries need bearing units that can resist washdown, chemicals, and contamination risks. These units support machinery in:

• Food processing: meat, dairy, seafood, bakery, confectionery, vegetables, fruit, frozen food, and ready meals
• Beverage production: bottle filling, canning, rinsing, pasteurizing, and packaging lines
• Pharmaceutical production: clean handling, secondary packaging, and sanitary process support
• Biotechnology: hygienic equipment frames, conveyors, and controlled production areas
• Cosmetics and personal care: filling lines for creams, gels, lotions, and liquid products
• Packaging machinery: wet, dusty, or hygiene-critical packing zones
• Chemical processing: equipment exposed to cleaning fluids and aggressive environments

Material and Technical Construction

The bearing housing uses Dupolit, a strong and stable housing material designed for demanding environments. Its compact base and bolted cover create a robust unit that supports strength, cleanability, and protection.

A stainless steel grease nipple allows optimal food-grade grease filling. This feature helps prevent condensation inside the housing and supports correct maintenance procedures. The spherical insert bearing uses lifetime lubrication and an eccentric locking collar for secure shaft fixing.

The self-aligning spherical bearing helps compensate for minor shaft misalignment. This reduces stress on the bearing and supports smoother operation in real machinery conditions.

Key Technical Features

• IP67 waterproof and dust-tight protection
• USDA accepted product information
• Unique batch ID number for food safety traceability
• Compact tapped base pillow block housing
• Closed cover and open cover options
• Strong Dupolit bearing housing
• Stainless steel grease nipple
• Spherical lifetime-lubricated ball bearing
• Eccentric locking collar
• Self-aligning bearing function
• Stainless spherical insert bearing
• Easy and precise assembly
• Mounting possible in all angles
• Heat resistance from -30°C to +100°C
• NSF H1 registered grease for incidental food contact applications
• Food-grade compliance framework according to Regulation (EC) No. 1935/2004
• Possibility for private label

NSF H1 lubricants suit applications where incidental food contact may occur, which makes them relevant for lubrication points in food and beverage machinery.

Compliance, Hygiene, and Food Safety

Food machinery components must support cleanability, risk reduction, and documentation. These IP67 bearing units help OEMs and end users build machinery that fits modern hygiene expectations.

The product information states compliance with 3-A and EHEDG-related hygienic requirements. It also states USDA acceptance and alignment with NSF/ANSI/3-A 14159-1-2010. The NSF/ANSI/3-A 14159-1 standard focuses on minimum hygienic design and construction requirements for meat and poultry processing equipment.

Regulation (EC) No. 1935/2004 covers materials and articles intended to come into contact with food. It provides a European framework for food contact material safety.

IP67 Waterproof Tapped Base Pillow Block Bearing Units

Closed Cover vs Open Cover Comparison

IP67 Rating Explained

An IP67 rated bearing housing offers two important protection levels. The first digit, 6, means dust-tight protection. The second digit, 7, means protection against temporary immersion in water under defined conditions. IEC describes IP ratings as a system for grading protection against dust and liquids.

This rating gives machine builders a clear advantage in wet environments. Dust, wash water, and cleaning residues can quickly shorten bearing life when they enter the housing. A protected IP67 design helps keep the bearing area cleaner, drier, and more reliable.

Built for Real Production Conditions

Real factories rarely operate in perfect conditions. Operators clean machines quickly. Maintenance teams need parts that fit standard layouts. Quality departments expect documentation. Production managers want fewer stops.

These IP67 bearing units answer those practical needs. Market-standard dimensions support easier replacement. Stainless insert bearings help with precise assembly. The self-aligning function supports real-world shaft alignment. A bolted cover gives the unit extra stability in demanding machinery.

That combination creates value beyond the bearing itself. It helps reduce risk, simplify maintenance, and support reliable production planning.

Why the Design Matters

A bearing unit in a hygienic area must do more than rotate smoothly. It must resist water, support cleaning, reduce contamination risks, and remain accessible for maintenance.

Smooth geometry helps cleaning teams remove product residues. Rounded corners reduce areas where soil can collect. A stainless steel spring in the oil seal ring helps prevent water penetration into the housing. Food-grade grease supports safety expectations in machinery where incidental contact risk can exist.

That technical balance makes the unit suitable for OEMs, machine builders, and end users who need durable hygienic components.

Strong Documentation Supports Better Decisions

Professional machinery buyers need documented product data. Claims about hygiene, food safety, and durability must connect to recognized standards, certificates, and traceability.

These bearing units support that requirement with:

• USDA accepted product information
• Unique batch ID number
• NSF/ANSI/3-A 14159-1-2010 reference
• Food-grade framework according to Regulation (EC) No. 1935/2004
• NSF H1 registered grease
• IP67 protection classification
• Standard replacement dimensions
• Technical temperature data

Clear documentation helps procurement teams compare products more accurately. It also helps OEMs present stronger machine specifications to food, pharmaceutical, and packaging customers.

Reliable Components for Hygiene-Critical Machinery

Trust starts with repeatable performance. A bearing unit that fails during washdown or absorbs water into the housing can create costly downtime. It can also create cleaning uncertainty.

NHK IP67 waterproof bearing units help reduce that risk with a sealed housing, robust construction, food-grade lubrication, and traceable identification. Their design supports easy cleaning, stable operation, and long service life in demanding environments.

Maintenance-free bearing inserts reduce service pressure. Chemical resistance helps the units tolerate common cleaning agents and many production chemicals. Heat resistance from -30°C to +100°C gives machinery builders a wide operating window.

Benefits for OEMs and End Users

• Improved machine reliability in wet and harsh environments
• Faster replacement due to market-standard measurements
• Cleaner equipment design through smooth surfaces and rounded corners
• Better audit support with batch traceability and documented product information
• Reduced maintenance pressure through lifetime-lubricated insert bearings
• Flexible installation because the housing can mount in all angles
• Food-grade confidence through NSF H1 grease and food-contact compliance framework
• Private label possibility for machine builders and distribution partners

Other Waterproof Bearing Units with Food-Grade Certificates

NHK also offers other waterproof bearing units with FDA-related certificates and hygienic design features for food processing, packaging, pharmaceutical, and washdown applications.

For questions about performance, replacement options, private label possibilities, or the right bearing unit for your machine, you are welcome to contact NHK. Our team can help you choose a practical solution for your production environment. NHK can support customers from Denmark, the UK, Germany, and Hong Kong.