Large 90A Polyurethane Bearing Rollers, 110–200 mm OD

Large Natural 90A Polyurethane Bearing Rollers

These large-diameter PU-coated rollers combine a carbon-steel core with a bearing-supported bore and a natural green-tinted polyurethane working surface. The standard source cards specify 90 Shore A hardness. They can be evaluated as idler, guide, pressure or conveying rollers in an appropriate machine arrangement. The roller turns on its bearing around a correctly mounted shaft; it is a mechanical component, not a complete powered conveyor or drive assembly.

Construction and Available Configurations

How to Read the Model

ABA-D×W-bearing-bore identifies finished roller outside diameter D, roller width W, the bearing series and the bearing bore in millimetres. Match diameter, width, bearing and bore together. Some equal-size rollers have different bearings and shaft bores; those are separate configurations. Model names and the bound images show the selected values. Inches are calculated using 25.4 mm per inch and rounded to three decimal places.

Model Dimensions and Prices

200 mm Roller Source References

These masses are source product-weight references, not load capacities. Confirm the supplied revision, actual mass and mounting design before ordering. The source does not provide rated radial/axial load, speed, torque, runout, working temperature or a bearing-life calculation for the complete roller.

Applications and Selection

Select from the actual machine requirements and the chosen roller geometry. Verify chemical, temperature, surface-contact and cleanliness requirements for your process; generic material names alone do not establish compatibility.

Mounting Checklist

1. Measure the required finished outside diameter, roller width, shaft/bearing bore and available mounting envelope.
2. Check the exact bearing series, shields/seals, bearing quantity, axial arrangement and retention method for the supplied model. ZZ appears on some source cards; confirm the actual bearing suffix if it matters for the installation.
3. Confirm shaft fits, shoulders, spacers, fasteners and bearing support. Apply assembly force through the appropriate bearing ring and avoid damage to the coating.
4. Establish the required load, speed, alignment, environment and maintenance conditions before selecting the roller.
5. Mount securely and test at controlled conditions, checking free rotation, runout, tracking, heat and contact behavior. Isolate the machine before installation or servicing.

Custom Bores, Coating and Ordering

The separate custom-bore selection lists 15–40 mm bore requests at USD50.00. It has no fixed outside diameter, width, bearing combination or complete finished drawing in the source. Confirm the complete drawing and supplied scope before ordering that selection. Its amount does not define every custom design.

Black/red coatings and different dimensions are shown as family references. Standard priced selections here use the natural 90A coating; other colors, hardness or bearing arrangements require confirmation. Send a dimensioned drawing, quantity, shaft details, load, speed and operating environment to boltte@boltte.com for a selection check.

Supply Scope

The offer covers one selected roller with the bearing arrangement confirmed for that model. Separate shafts, machine frames, drives, brackets, fasteners and equipment shown for reference are not specified as included. Photographed family groups and supplier storage racks do not indicate a set quantity or current BOLTTE stock.

Original Product, Drawing and Application Images

Original size comparisons, front/side views, bearing close-ups, color-family photographs and supplier storage references follow. Every standard selection has its own dimension image in the upper product gallery.