| Pulley function and location | Identify whether the pulley is a drive, tail, bend, take-up, or snub pulley, and show its position in the conveyor arrangement. | Drive pulley at the head end; bend pulley on the return run. | Pulley function affects loading, construction, lagging, and how the pulley is connected to the drive or take-up system. |
| Belt details | Specify belt width, belt construction, cover material, belt rating, and applicable belt specification. | Belt width: 800 mm; belt construction and rating: provide from the belt datasheet. | The pulley must suit the belt’s width, tensile requirements, and construction. Use the belt supplier’s recommendations when selecting pulley dimensions. |
| Pulley diameter and face width | Give the required shell diameter and face width, or provide the belt, load, and layout details needed to determine them. | Diameter: 500 mm; face width: dimensioned on the conveyor drawing. | Diameter influences belt bending and pulley duty. Face width must accommodate the belt and the specified arrangement; confirm both dimensions against the design and applicable recommendations. |
| Operating load and belt tension | Provide the design belt tensions, conveyed load, operating condition, and any starting or braking loads available from the conveyor calculation. | Provide maximum operating and transient belt tensions in kN. | Loads determine the required strength of the shell, shaft, hubs, and connections. A nominal load alone may not describe starting or other peak conditions. |
| Speed and duty | State belt speed, operating hours, starts per hour, and whether the conveyor runs continuously or intermittently. | Belt speed: 2.0 m/s; operation: 16 hours per day. | Speed and duty help define operating conditions, heating, wear expectations, and the appropriate inspection and maintenance plan. |
| Shaft and bearing arrangement | Provide shaft diameter, bearing locations, bearing type if specified, end details, and the required mounting or coupling interface. | Shaft ends and bearing centre distances: refer to the dimensioned assembly drawing. | Accurate interface dimensions support fit-up with the conveyor frame, bearings, and drive. Shaft sizing should be checked against calculated loads and deflection limits. |
| Lagging and surface finish | Specify whether lagging is required, along with its material, thickness, pattern, and bonding method where applicable. | Drive pulley: specify the required rubber lagging and surface pattern; confirm the selection for the operating conditions. | Surface selection can affect traction, wear, and resistance to material or moisture conditions. Requirements vary with pulley function and application. |
| Environment and materials | Describe temperature range, moisture, dust, corrosive exposure, washdown, and any material or coating requirements. | Outdoor service with rain exposure; state ambient temperature range and any corrosion-protection requirement. | Environmental conditions influence material selection, coatings, sealing details, and expected service life. |
| Drawings, tolerances, and documentation | Provide the latest arrangement and interface drawings, required tolerances, inspection requirements, and requested documentation. | Dimensioned drawing with shaft-end details; request material certificates and an inspection report if required. | Clear drawings and acceptance requirements reduce ambiguity during manufacture and help verify that the supplied pulley fits the conveyor. |
| Applicable standards and acceptance criteria | Name the standards, project specifications, test requirements, and acceptance criteria that apply to the pulley and conveyor. | List the project’s required design, fabrication, inspection, and documentation standards. | Requirements vary by project and market. Explicit criteria help ensure the quotation, design review, manufacture, and inspection use the same basis. |