On an excavator, the joints certainly don’t have an easy life – heavy loads, impacts, dust, sometimes moisture, plus long hours of continuous operation on site. Hydraulic Seals Store offers high-quality bushings designed specifically for these conditions, alongside hydraulic seals and bolt scrapers, for comprehensive machine maintenance.
The boom, bucket and chassis joints are constantly pivoting under load, and a good bushing absorbs the friction in place of the pin – otherwise, wear would occur much more quickly and the precision of movements would suffer, affecting the daily productivity of the operator working with the machine.Furthermore, a well-chosen bushing helps to reduce play in the joints and keeps movements more stable whilst working. In the long term, this can limit wear on other components and reduce the frequency of maintenance interventions.
On a construction site, dust and sand get everywhere, and the bushing must withstand both abrasion and the repeated shocks of digging or lifting heavy materials. Hence the almost universal choice of heat-treated steel – other materials would fail much more quickly under these intensive working conditions. However, the correct hardness of the material is also important, as is regular lubrication, because even a highly durable bushing can still wear out prematurely if it operates dry or in a joint that is already damaged. For machinery used on a daily basis, regularly checking the play and condition of the bushings helps to prevent more costly repairs.
The make, model and original dimensions matter – don’t guess. A bushing of the wrong size leads directly to excessive play and accelerated wear of the pin, so it’s worth checking carefully before ordering, especially if the machine has undergone previous repairs.
We stock bushings compatible with various makes and models, each with a full technical specification sheet. Fast delivery and fair prices make preventative maintenance a simple task rather than a headache, especially when the machine needs to get back on site quickly.
Usually heat-treated steel, hardened for high hardness – the only material capable of withstanding the specific loads and impacts of construction machinery over the long term.
It depends on how much the machine is used, but a good rule of thumb is to check it daily and grease it every 8–10 hours of operation, especially in dusty and damp conditions.
Unusual noises in the joint, visible play, uneven movement of the arm or bucket – any of these indicate that it’s time to check the bushings as soon as possible.
Identify the make and model, measure the original bushing and check compatibility with the existing pin before ordering the necessary spare parts.