Metro 5MDA User Manual

CASTER GUIDE
The following information is to assist you in the selection of the appropriate caster for your specifi c application. Remember, the selection of the proper caster is determined by the load requirements, the operating environment, and other special conditions.
Caster Series
5M
B5DN
5MP
Material
Load Rating
per Caster
Resistance
to Oil & Grease
Rollability
Floor
Protection
Noise
Resilient 200 lbs. Low Fair Good Low Rubber (91kg)
Neoprene 225 lbs. High Good Good Low (102kg)
Polyurethane 300 lbs. High Good Good Moderate (137kg)
5MDA
High 250 lbs. High Good Good Low Modulus (114kg) Rubber
Q5MBESD
Conductive 200 lbs. Low Fair Good Low (91kg)
Caster Tips:
1. The total weight of the equipment and its load should not exceed three times the load rating per caster.
2. Given the same wheel material, the larger the wheel diameter, the greater the load capacity and the better the rollability.
3. Caster mounting patterns affect maneuverability and steering of the equipment.
For maneuverability, use 4 swivel casters.
For steering control use 2 swivel and 2 rigid casters.
4. Plate casters generally have wheels of larger diameter and can usually carry more weight and take more abuse than stem casters.
5. Ball bearings and roller bearings in the wheel generally perform better and carry more weight than engineered plastic bearings or sintered metal bearings. Metro stem casters in the 5MP and the 5MDA series have ball bearings in the swivel and the wheel. Most plate casters have ball bearings in the swivel and ball or roller bearings in the wheel.
6. Wheel tread shapes are generally fl at, rounded or tapered. Tapered wheels, like donut-shaped wheels, tend to roll more easily. High-modulus donut wheels offer resiliency and mobility, reduce noise, and absorb shock on uneven or rough fl oors.
Additional stem and plate casters, in various sizes, are available.
1.800.433.2232
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