Pocket Design

Each concave pocket follows the geometry of the matching round steel chain. The pocket profile must correspond to the chain diameter, pitch and link dimensions because an incorrect profile can cause poor seating, uneven load distribution and accelerated wear.

The pocket arrangement supports successive links as their orientation changes around the wheel. A larger number of pockets reduces the angular change between consecutive chain positions and supports smoother operation.

Materials and Surface Hardening

Material selection depends on the transmitted load, operating speed, wear environment and application. High-alloy stainless steel with partial induction hardening is available for pocket wheels used in bulk-material conveyors and lifting equipment.

Induction hardening concentrates wear resistance on the chain-contact contour while retaining the required supporting properties in the wheel body. Material grade, hardness and hardened depth must be confirmed in the technical order rather than assumed from the nominal chain size.

Construction Options

TOPONE Pocket Wheels are available for drive and return arrangements with the following construction options:

• One-piece wheel;

• Multi-piece or split wheel;

• Machined solid construction;

• Welded wheel assembly;

• Raw or finished shaft bore;

• Key and keyway connection;

• Alternative shaft fixing according to the approved drawing;

• Custom hub diameter and hub depth.

Name: Round Steel Chain Pocket Wheels

MOQ: 1 Piece

Package: Carton + Steel Pallet

Manufacturing Standards:
Pocket Wheels are manufactured according to the approved chain dimensions and wheel drawing. Available construction methods include machining from solid material and welded assembly, while one-piece and multi-piece configurations can be supplied. The technical order shall define the chain-pocket profile, number of pockets, pitch circle diameter, outside diameter, hub dimensions, bore and shaft-fixing method.

Partial induction contour hardening can be applied to the chain-contact pockets. The confirmed order shall specify the material grade, surface hardness, hardened depth and any required corrosion protection.

Each wheel can be marked with the TOPONE identification, manufacturing date, nominal round steel chain size and traceability code.

Testing Standards:
The reference product information does not identify a separate testing standard. The agreed inspection plan should cover material verification, visual inspection, outside and pitch circle diameters, pocket count, pocket profile, hub dimensions, bore, keyway, concentricity, radial runout and fit with the matching round steel chain. Hardness and hardened-depth testing apply when induction hardening is specified.

Application Standards:
The reference product information does not specify a separate application standard. Product selection shall follow the specific application, chain dimensions, chain specification, number of pockets, pitch circle diameter, hub dimensions and shaft connection confirmed in the technical order.

Maintenance Standards:
The reference product information does not specify fixed maintenance intervals or wear limits. Maintenance procedures should include inspection of the pocket contact surfaces, chain seating, pitch compatibility, bore, keyway and wheel runout. Replace or recondition the wheel when pocket wear prevents correct chain engagement according to the equipment manufacturer’s approved maintenance criteria.