Casters 101: Quick guide on finding the right caster.
First time looking for casters and don't know the options and terminology? Read on for a quick & easy beginner's guide to finding what you need. Keep in mind, you can always call for assistance.
Tutorial Chapters:
Lesson 5:
Caster Brakes
Several styles of brakes are available. Read on to see what might be best for your situation. This dicussion is relevant to single-wheel casters.
Remember to call with your questions.
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Thumb Screw Brakes
Used with small (2" or 3") dual-wheel or log (wide wheel) casters.
Economical and best used with brakes are not frequently engaged or disengaged.
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Friction (Cam) Brake
Engaging the brake moves a cam and tightens the caster rig against the wheel creating friction.
Generally less effective than a top lock brake but has its place with very hard wheels such as steel or cast iron where tread brakes have a harder surface to engage and immobilize.
Fewer parts making it more economically priced.
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Top Lock (tread lock) Brake
Engaging the pedal, moves a cam and lever, which makes direct contact with the top tread of the wheel.
Very common and effective, particularly with softer wheels such as rubber, TPR, polyurethane, and phenolic.
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Pedal Style Wheel Brake
Pedal style brake may lock the wheel only, the direction only and often both. When it locks both, it is referred to as 'Total Lock' which is discussed below.
Not available on all casters: most common on mid-size (3x1 through 6x1-1/4) casters.
Rarely available on rigid casters.
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Face Contact Brake
Generally used for larger (2" wide or larger) casters.
Design provides for firmer contact with wheel face.
Two-pedal brake allows for easier disengagement. |
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Total Locking Brake
Single action mechanism locks both the wheel and the swivel for complete immobilization.
Not available on all casters: most common on mid-size (3x1 through 6x2) casters.
Swivel radius increases due to the brake pedal.
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Position Lock
Spring loaded key can be engaged to lock the swivel caster into any 90-degree position.
Very useful for manuevering a heavy application into a tight spot with one person.
Economical and one of the most under-rated caster options available.
Generally available on larger (2" wide or larger) casters.
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Compression and Decompression brakes
Compression brakes: Brakes engage when weight is place on caster.
Decompression brakes: Brakes are normally engaged and released when weight is placed on casters.
Available on twin-wheel casters.
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