When should I use a Stainless Steel bearing?

Stainless Steel bearings should be used in the presence of moisture, chemicals, and high temperatures.  They are typically used in the food and beverage industry, wash-down, corrosive environments, and oven and furnace applications.

What are the ratings for the FRANTZ lubes?

We offer many options for lubes in various products.  Contact our Inside Sales Team, as not all greases are offered in every wheel or bearing produced.

1. FRANTZ 14 Calcium Complex Sulfonate Grease
-40°F – 300°F
2. Calcium Complex Sulfonate Grease
-40°F – 320°F
3. Lithium Complex Grease
-4°F – 284°F
4. Food Grade Grease
up to 225°F
5. Moly Hi-Lo Grease
25°F – 350°F
6. Krytox Grease
-22°F – 550°F
7. Perlube Oil
-10°F – 400°F

Contact our Engineering group for special requests.

How do I measure a bearing?

Use a vernier caliper or a ruler.  All bearings have a width, inner diameter, and outer diameter.

What dimensions and specifications are important for skate wheels?

Overall height and width, wheel diameter, bore length, bore diameter, and load rating are the important dimensions and specifications for skate wheels.

What are the different ways bearings fit?

Press Fit bearings are pressed straight into the roller tube.  Flanged bearings have a flange on the bearing, creating a “stop” as the bearing is inserted into the tube.  There are also straight-faced bearings where a counterbored tube makes a stop inside the tube.  Then, the bearing will be flush with the tube’s edge.

Swage or Crimp Fit bearings fit into the tube, and then the tube edges are bent to squeeze the bearing shell and secure the bearing.

What are the noise ratings?

Commercial Bearings or Wheels – Use when the noise level is not a concern.

Semi-Precision Bearings – Use when the application requires less noise than commercial bearings.

Precision Bearings – These bearings are the lowest noise available.

What are seals and shields?

We offer a variety of seals and shields in our bearing models to protect from contamination depending on the model.  The offers include nylon, rubber, felt, polymer labyrinth, sealing rings, and seal plates.  We also have ball cages in our 1500 series.

What is meant by Tube ID and Gauge?

Tube ID is the inside diameter of the tube.  Subtract twice the tube’s wall thickness from the total external diameter (the body OD of the bearing) to determine the Tube ID.  The thickness of the tube’s walls is the gauge.

When should I use a regreasable bearing?

You should use a regreasable bearing when the bearing is used in extreme temperatures or high contamination applications.

What are the temperature ratings on the Genstar® Bearings?

ABEC Bearings – -4°F – 180°F

How do I figure out the load rating I need?

Consider the total load to be conveyed divided by the number of bearings or wheels the load will be distributed upon.  The roller tube or axle shaft is often the limiting factor in conveyor roller capacity.

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