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  • Rubber Alternative Guide Roller
  • Polyurethane Idler Roller and Wheels
  • Urethane Covered Guide Wheels
  • Tight Tolerance Molded Polyurethane Idler Roller and Wheel
  • Grooved Polyurethane Wheel and Roller
  • Precision rubber coated idler roller, durable and tight tolerance
  • ML6 Molded Polyurethane Idler Rollers
  • Custom Rubber Overmolded Idler Roller
  • Coated Idler Rollers
  • ML6 Custom Molded Polyurethane Idler Rollers
  • ML6 Polyurethane No-Crush Wheel with Bronze Bushing
  • ML6 Molded Idling Roller with Bronze Brushing
  • ML6 Molded Polyurethane Idler Roller with Bronze Bushing
  • Overmolded ML6 Polyurethane Bronze Bushings
  • Precision idler wheels
  • Bronze Bushings Idler Rollers
  • Polyurethane Bronze Bushings
  • Precision idler wheels
  • ML6 Molded Polyurethane Idler Roller with Bushing
  • Precision idler wheels
  • Polyurethane idler rollers
  • Rubber idler wheels

High Tolerances & Unbeatable Durability

Polyurethane Coated Idler Rollers

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Polyurethane Coated Idler Rollers Model Specifications

» Non-marking, durable polyurethane coating» Precision dimensional tolerances with low runout
» Bronze bushing self-lubricates to spin freely on shaft» Industry-leading bond strength between ML6 polyurethane and bushing

Meridian Laboratory ML6 precision polyurethane idler rollers can serve as guides, tensioning wheels, or in any application which requires a roller to spin freely on a shaft.  Precision polyurethane ML6 is bonded to an SAE 841 oil-impregnated bronze sleeve bushing and is ideal for lighter-duty applications with low to moderate speeds.  For high-speed or heavier duty applications, see our complete line of ML6 precision polyurethane coated bearings.

All of Meridian Laboratory’s ML6 polyurethane idler rollers & wheels feature a cast polyurethane “tire” that is bonded to the core extremely well.  The bond strength of the polyurethane to the idler core itself is stronger than the polyurethane itself.  None of our polyurethane idler rollers are ground to size, guaranteeing both better tolerances (typically 0.0015″ or better), as well as maximum longevity.

Custom sizes and profiles are available very affordably, with turnaround times in as little as 5 days.

ML6 polyurethane idler rollers are available in a variety of sizes, colors, and durometers to meet any of your most demanding requirements. Click here to shop online.

Why Performance Matters

While it’s easy to think “it’s just a roller”, it’s even easier to lose sight of how much you ask of your rollers and wheels, day in and day out. Keeping your operations running with a minimum of downtime for machine repairs, feed jams, tuning of encoder wheels, or other time wasters (and money costers) means upgrading to superior components for your application. If you expect and demand that your equipment do more, ML6 offers a proven upgrade you’ll notice immediately.

Video: The Importance of Total Indicated Runout When Selecting Polyurethane Rollers

YouTube video

In this short video above, discover one (of many) reasons a more durable, precision roller can have a huge impact on your manufacturing environment.

Hardness Options
40A, 55A, 70A, 80A, 90A, 75D

Click to learn more about durometers

Custom colors available on request

Hardness (+/- 5)40A55A70A80A90A60D
Ultimate Elongation (%)640540540640500300
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


  • Converting and processor equipment
  • Aircraft seating trays
  • Paper, cardstock, and graphic printing systems
  • Nuclear fuel rod handling systems
  • Equipment door guides
  • Conveyor systems
Precision Idler Rollers
Precision Idler Rollers

Standard Polyurethane Idler Roller Sizes

IdlerRoller 2021

Part #
(Specify Durometer as 'D')
(Specify as "D" in Part #)
Diameter (OD)Width (WD)Bore Diameter (ID)Core Diameter (CD)
BR-720-D40A | 55A | 70A | 80A | 90A | 75D0.375"0.250"0.125"0.250"
BR-721-D40A | 55A | 70A | 80A | 90A | 75D0.500"0.250"0.125"0.250"
BR-722-D40A | 55A | 70A | 80A | 90A | 75D0.500"0.250"0.1875"0.3125"
BR-723-D40A | 55A | 70A | 80A | 90A | 75D0.625"0.250"0.1875"0.3125"
BR-724-D40A | 55A | 70A | 80A | 90A | 75D0.625"0.250"0.250"0.375"
BR-725-D40A | 55A | 70A | 80A | 90A | 75D0.750"0.375"0.1875"0.375"
BR-726-D40A | 55A | 70A | 80A | 90A | 75D0.750"0.375"0.250"0.500"
BR-727-D40A | 55A | 70A | 80A | 90A | 75D0.750"0.750"0.1875"0.3125"
BR-728-D40A | 55A | 70A | 80A | 90A | 75D0.750"0.750"0.250"0.500"
BR-730-D40A | 55A | 70A | 80A | 90A | 75D1.000"0.500"0.250"0.500"
BR-731-D40A | 55A | 70A | 80A | 90A | 75D1.000"0.500"0.3125"0.500"
Custom Not seeing what you need? Contact Meridian Laboratory – standard and custom solutions with no minimum order quantity, delivered in as little as 5 days!


Metric Polyurethane Idler Roller Sizes

IdlerRoller 2021

Part #
(Specify Durometer as 'D')
(Specify as "D" in Part #)
Diameter (OD)Width (WD)Bore Diameter (ID)Core Diameter (CD)
40A | 55A | 70A | 80A | 90A | 75D10mm6mm3mm6mm
MET-BR-320-D40A | 55A | 70A | 80A | 90A | 75D12mm6mm3mm6mm
MET-BR-330-D40A | 55A | 70A | 80A | 90A | 75D12mm6mm4mm7mm
MET-BR-340-D40A | 55A | 70A | 80A | 90A | 75D20mm5mm5mm8mm
MET-BR-350-D40A | 55A | 70A | 80A | 90A | 75D20mm6mm6mm10mm
MET-BR-360-D40A | 55A | 70A | 80A | 90A | 75D20mm10mm5mm8mm
MET-BR-370-D40A | 55A | 70A | 80A | 90A | 75D20mm10mm6mm10mm
MET-BR-380-D40A | 55A | 70A | 80A | 90A | 75D25mm6mm6mm12mm
MET-BR-390-D40A | 55A | 70A | 80A | 90A | 75D25mm6mm8mm12mm
MET-BR-400-D40A | 55A | 70A | 80A | 90A | 75D25mm12mm6mm12mm
MET-BR-410-D40A | 55A | 70A | 80A | 90A | 75D25mm12mm8mm12mm
MET-BR-420-D40A | 55A | 70A | 80A | 90A | 75D30mm12mm6mm12mm
MET-BR-430-D40A | 55A | 70A | 80A | 90A | 75D30mm12mm8mm14mm
Metric units are approximate Not seeing what you need? Contact Meridian Laboratory – standard and custom solutions with no minimum order quantity, delivered in as little as 5 days!