If you work in food processing, beverage production, pharmaceuticals, chemical processing, or any other environment where equipment gets washed down regularly, you already know water isn't the only thing you're fighting.

You have high-pressure spray.

Heat.

Cleaning chemicals.

Dirt.

Slurry.

And plenty of opportunities for contamination to find its way into your bearings.

That makes the seal on a housed bearing a pretty big deal. A bearing can have great materials, great lubrication, and great construction, but if the seal allows water and contaminants inside, the bearing isn't going to have a very long life.

That's where the Sealmaster PN Gold™ HPS seal comes into the conversation.

The HPS, or High Performance Seal, uses a triple-lip contact design that provides multi-directional sealing to help minimize contamination ingress and retain lubrication. The seal also uses a 304 stainless steel shell and rotating flinger, while the FKM seal material provides chemical resistance and high-temperature capability.

And unlike a lot of generic housed bearing options, PN Gold is designed specifically with corrosive washdown environments in mind.

What Makes a Washdown Bearing Different?

Let's start with the obvious.

A standard housed bearing sitting in a relatively clean, dry environment doesn't have to deal with the same abuse as a bearing sitting next to a conveyor in a food processing plant getting blasted with water every shift.

In a washdown application, the seal has to help keep contaminants out while the bearing continues operating.

That means the sealing system matters. A lot.

Water getting past a seal can lead to:

⚈ Lubricant contamination

⚈ Corrosion

⚈ Raceway damage

⚈ Rolling element damage

⚈ Premature bearing failure

⚈ More frequent bearing replacement

And once contamination gets inside the bearing, you're no longer dealing with a simple washdown problem.

You're dealing with a bearing failure problem.

Sealmaster PN Gold Uses a Triple-Lip HPS Seal

The PN Gold HPS seal isn't just a rubber ring sitting around the bearing.

It is a multi-component sealing system designed to create multiple barriers against contamination.

The triple-lip contact design provides multi-directional sealing, while the stainless steel shell and rotating flinger help protect the sealing components and provide a durable wear surface for the seal lips.

Think about it like this:

One barrier is one opportunity for contamination to get through.

Multiple sealing points give the contamination more obstacles to overcome.

That's especially important when the bearing is regularly exposed to water, slurry, or aggressive cleaning conditions.

And It's IP69K Certified

This is where PN Gold separates itself from a lot of generic washdown bearing options.

Sealmaster PN Gold mounted bearings have achieved third-party IP69K certification. IP69K is intended for applications involving high-pressure, high-temperature washdown conditions and requires protection against both dust and high-pressure water exposure.

In other words, this isn't simply a manufacturer saying, "Yeah, it's pretty good around water."

There is a formal rating behind the washdown capability.

Regal Rexnord specifically identifies PN Gold as a solution for corrosive washdown environments including food and beverage, pharmaceutical, and chemical processing applications.

Regal Rexnord Put the Seals to the Test

Here's where things get interesting.

Regal Rexnord didn't just compare the HPS seal to one competing design.

Their testing included:

⚈ 13 different manufacturers

⚈ 20+ different seal designs

⚈ Stainless steel bearings

⚈ Steel, black oxide, zinc, TDC, and nickel-coated bearings

The bearings were run at 300 RPM and submerged halfway in a stirred slurry mixture. The test continued until the slurry mixture leaked through the bearing.

That's a pretty nasty environment for a bearing seal.

And that's the point.

If you're evaluating a washdown bearing, you don't want to know how it performs sitting on a shelf.

You want to know how it performs when water and contamination are actively trying to get inside it.

The Results Tell an Interesting Story

The Regal Rexnord test measured bearing seal performance relative to a Sealmaster single-lip seal.

The results show the Sealmaster PN Gold HPS triple-lip design achieving the highest relative life shown in the test, outperforming the other seal designs evaluated under the test conditions.

That's important because there were more than a few different approaches to sealing represented in the test.

Some designs performed better than others.

Some provided more protection.

And the HPS triple-lip design stood out.

Why This Matters When You're Comparing Sealmaster to Import Housed Units

Let's be honest.

There are plenty of lower-cost housed bearings available.

And when you're looking at a part number on a screen, it can be tempting to think:

"Same bore. Same housing style. Same general bearing. Why pay more?"

Because the bearing isn't operating on a spreadsheet.

It's operating in your application.

A cheaper housed unit may look like a direct replacement until you factor in:

⚈ How often the equipment is washed down

⚈ How much water pressure the bearing sees

⚈ Whether cleaning chemicals are involved

⚈ How much contamination is present

⚈ How frequently the bearing fails

⚈ How much labor it takes to replace the bearing

⚈ How much production is lost when the equipment is down

That's where the initial purchase price can become a pretty small part of the overall equation.

If an inexpensive bearing fails repeatedly because the sealing system can't handle the application, you haven't really saved money.

You've just bought yourself another maintenance job.

The Seal Is Only One Part of the PN Gold Advantage

The HPS seal is a major part of the story, but the PN Gold housed unit is more than just a good seal.

Depending on configuration, PN Gold units can feature:

⚈ High-phosphorus electroless nickel-plated 52100 steel bearing races for corrosion resistance

⚈ 304 stainless steel seal shell and flinger

⚈ 316 passivated stainless steel housings or high-strength composite housings

⚈ FKM seal lip material for chemical resistance and high-temperature capability

⚈ Food-grade GoldPlex-FG H1 lubricant

⚈ Triple-lip HPS sealing

These features are designed to work together for demanding washdown environments.

That's an important distinction.

You don't want to take a standard bearing and simply hope the seal can survive the environment.

You want the entire housed unit selected around the application.

Washdown Doesn't Mean "Waterproof and Forget About It"

Here's the part that's easy to overlook.

Even with an IP69K-rated bearing, application conditions still matter.

Seal selection, bearing material, lubrication, temperature, load, speed, installation, and the surrounding equipment all play a role in bearing life.

IP69K certification doesn't mean a bearing is invincible.

It means the product has been tested and certified for a demanding level of protection against ingress under defined conditions.

That's why proper bearing selection matters.

The goal isn't simply to find a bearing that fits the shaft.

The goal is to find a bearing that fits the application.

So, What's the Advantage?

When you're comparing a Sealmaster PN Gold housed unit to a lower-cost import option for a washdown application, the conversation shouldn't start with the price tag.

It should start with the environment.

You're looking for a bearing that can handle the conditions it's actually going to experience.

The Sealmaster PN Gold HPS seal brings several advantages to that conversation:

⚈ Triple-lip sealing to create multiple barriers against contamination

⚈ IP69K certification for demanding washdown environments

⚈ Chemical-resistant FKM seal material

⚈ 304 stainless steel shell and flinger for added protection and corrosion resistance

⚈ Documented testing against 20+ seal designs from 13 manufacturers

⚈ Construction designed specifically for corrosive washdown applications

Those aren't just features on a product page.

They're features that address the reasons washdown bearings fail in the first place.

Don't Just Ask, "What Bearing Fits?"

Ask a Better Question.

If you're replacing a housed bearing every few months, the answer may not be "buy another one."

Ask:

What is this bearing actually dealing with?

Is it getting pressure washed every day?

Is it exposed to cleaning chemicals?

Is water getting past the seal?

Is contamination getting into the bearing?

Is corrosion becoming a problem?

Is the current seal designed for the environment?

Those questions can completely change what bearing you should be using.

And that's where the right supplier can make a difference.

At 3BG Supply, we don't want to just match a part number and send you a box.

Tell us what the bearing is doing, what environment it's operating in, and what keeps going wrong.

We'll help you figure out what actually belongs on the machine.

Because when your equipment is getting washed down every day, the cheapest bearing isn't necessarily the cheapest solution.

Sometimes the smarter move is choosing a bearing that was built for the abuse in the first place.