Mounting Brackets

Function

Mounting brackets transmit the weight and operational loads of mounted equipment into the structural frame without flex or fatigue failure. Misaligned or cracked brackets cause rapid bearing and coupling wear in downstream equipment; a correctly rated, properly welded bracket holds alignment tolerances through tens of thousands of operating hours. Ignoring bracket integrity is one of the most common causes of recurring, apparently unrelated drive and conveyor failures on ageing plants.

Construction & quality

Fabricated from IS 2062 Grade B / ASTM A36 equivalent structural mild steel plate and section. Plate thickness ranges from 8 to 25 mm depending on load duty. Machined bolt-face pads are milled flat to ±0.2 mm to ensure square seating of motor and gearbox feet. Fillet welds are full-penetration or partial-penetration per load classification; weld quality is visually inspected and, on structural grades, magnetic-particle tested. Standard finish is a two-coat epoxy primer with polyurethane topcoat; hot-dip galvanising (85 µm minimum) is available on request for coastal or tropical service.

When to replace

• Visible cracks at weld toes or in the heat-affected zone, particularly at re-entrant corners
• Elongated or ovalled bolt holes allowing perceptible component shift under load
• Pronounced rust pitting that has reduced cross-section wall thickness by more than 20%
• Noticeable flexing or vibration of mounted equipment that was previously stable
• Drive or conveyor misalignment that cannot be corrected by shim adjustment alone