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Polyurethane Coated Bearings for Precision and Durability

Polyurethane Coated / Covered Bearings

Precision Polyurethane Coated / Covered Bearings

Meridian Laboratory ML6 precision polyurethane coated bearings are extremely precise and durable.  Designed with heavy duty and higher speed ratings in mind, they are non-marking and have a guaranteed T.I.R. of less than 0.001”.  For light duty applications with moderate to low speeds, see our complete line of ML6 polyurethane idler rollers.

Contrary to other manufacturers of polyurethane bearings who rely on a polyurethane tire slipped over the bearing race, Meridian Laboratory molds and bonds polyurethane directly to the race.  In fact, the bond between the molded polyurethane and the bearing race is stronger than the ML6 polyurethane itself, guaranteeing a strong bond and durable, long-lasting polyurethane bearings – with unbeatable precision and tolerances.

Custom sizes and profiles are available very affordably, with turnaround times in as little as 5 days.  Metric sizes are not listed, but available by request.

ML6 polyurethane coated bearings are available in a variety of sizes, colors, and durometers to meet any of your requirements.

Why Choose ML6? Request a ML6 quote

Hardness (+/- 5)40A55A70A80A90A60D
Ultimate Elongation (%)640540540640500600
Ultimate Tensile (PSI)320053005600690062006400
Tear Strength, pli Die "C"150244332421568620
Compression Modulus (Young's Modulus)38083016601990646016200
Compression Set (%
22 Hrs. @ 158ºF)
Bashore Rebound (%)504137313552
Abrasion Loss, mm20022415994101115

For more information, contact Meridian Laboratory

  • Reduces noise while rotating
  • Molding process does not affect the lubrication of performance of the bearing
  • Extreme strength bond between ML6 polyurethane and bearing
  • Non-marking, durable polyurethane coating
  • Improved traction against contact surfaces
  • Reduced wear and increased longevity of contact surfaces
  • Available in variety of colors and durometers
  • Glass handling equipment
  • Turntable assemblies
  • Medical tubing guides
  • Extrusion guide wheels
  • Material handling conveyors
Hardness Options
40A, 55A, 70A, 80A, 90A

Click to learn more about durometers

Standard Urethane Coated Bearings

Generic Bearing

Part #
(Specify Durometer as 'D')
(Specify as 'D' in Part #)
Diameter (OD)Width (WD)Bore Diameter (ID)Bearing Diameter (BD)Bearing Type
Custom / MetricNot seeing what you need? Contact Meridian Laboratory – standard and custom solutions with no minimum order quantity, delivered in as little as 5 days!
CBB-430-D40A | 55A | 70A | 80A | 90A | 60D0.750"0.196"0.1875"0.500"R3
CBB-440-D40A | 55A | 70A | 80A | 90A | 60D1.000"0.281"0.250"0.750"R4A
CBB-450-D40A | 55A | 70A | 80A | 90A | 60D1.125"0.281"0.375"0.875"R6
CBB-460-D40A | 55A | 70A | 80A | 90A | 60D1.625"0.343"0.625"1.375"R10
CBB-470-D40A | 55A | 70A | 80A | 90A | 60D1.875"0.4375"0.750"1.625"R12
CBB-480-D40A | 55A | 70A | 80A | 90A | 60D2.500"0.500"1.250"2.250"R20

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