ZBA Natural 90A PU Dual-Bearing Idler Rollers, 30–60 mm

ZBA Natural 90A PU Dual-Bearing Idler Rollers

These natural green-tinted polyurethane rollers turn on two bearings around a compatible, separately supported shaft. They can be used as unpowered idler, guide or contact rollers in a suitable conveying or machine arrangement. A selected roller is a component, not a complete motorized conveyor or a shaft-and-bracket assembly.

Construction and Selection

Model Code and Dimension Guide

ZBA-D×L-bearing-bore identifies outside diameter D, roller length L, bearing series and bearing bore, in that order. Some original image footers omit the bearing number; it is included in the selection and the schedule here so that equal-size parts with different bearings remain distinct. Choose all four fields together. Millimetres are the ordering dimensions; inches are calculated using 25.4 mm per inch and rounded to three decimals.

Available Models, Dimensions and Prices

The coating T notation is reproduced from the individual model card as a reference. Where a card does not state it, no thickness is inferred. The selected bearing series and bore are essential: for example, equal outside diameters and lengths with 6000 and 6001 bearings have different shaft bores and are separate configurations.

What These Rollers Do

Select from the actual operating requirements. The supplied material does not establish a complete-roller load, speed, torque, temperature or life rating. Confirm suitability for chemicals, contamination, temperature and the required surface finish rather than relying on material name alone.

Installation and Inspection

1. Match outside diameter, roller length, bearing bore and bearing series to the drawing and the available mounting space.
2. Check the shaft fit, bearing suffix/shields or seals, axial spacing, shoulders, retention and any required spacers.
3. Support the bearings correctly during assembly. Avoid applying installation force through the wrong bearing ring or damaging the PU surface.
4. Align the roller and shaft with the mechanism, secure the mounting and check free rotation and clearances.
5. Test under controlled conditions and inspect tracking, contact behavior, heat, vibration, wear and fastener retention. Isolate the equipment before service.

Shafts and Custom Requirements

Source family images show optional shaft arrangements, but the standard roller selections here do not include a specified shaft. For a shaft assembly or an unlisted configuration, send a complete dimensioned drawing with shaft ends, bore, material, bearing, load, speed, quantity and operating conditions to boltte@boltte.com. The price of a different or unspecified option is not a quotation for every custom assembly.

Supply and Model Selection Notes

Each price covers one selected reviewed roller. Group photographs illustrate the family, not a multi-piece set. Match the selected model to its bound dimension image before ordering. Other coating colors, hardnesses, core grades or shaft arrangements require confirmation.

Original Product, Drawing and Application Images

The following translated original photographs show the product family, construction, front/side views and sample dimension cards. Exact dimension images for every offered model are in the upper product gallery. No installed-machine application photograph is supplied for this group; application functions are explained above.