Lubrication equipment
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Frequently asked questions
How do grease nipples differ?
Common grease nipples follow DIN 71412 with M6, M8 or M10 threads, or inch 1/8 and 1/4 sizes, in straight, 45 degree and 90 degree forms. A replacement needs the exact thread and pitch; M8 x 1 and 1/8 BSP look similar but do not interchange.
What should I check when buying a grease gun?
Look at maximum pressure, output per stroke (often about 0.8 to 1.5 cm³) and how it is filled: bulk grease or 400 g cartridges. Knowing the output per stroke lets you apply a measured quantity rather than pumping until grease spills out.
Where do automatic single-point lubricators fit?
They suit bearings that are hard to reach, in hazardous spots, or that need small regular doses. Discharge time is adjustable, for example from 1 to 12 months; choose it from the bearing's grease requirement and check periodically that the line is not blocked.
How do I avoid putting the wrong grease into a point?
Dedicate one gun per grease type and colour-label the gun and the matching nipple caps. Wipe the nipple clean before greasing so dirt is not forced into the bearing, and replace nipples with stuck balls or missing caps straight away.
What does centralised lubrication offer over manual greasing?
A centralised system delivers small, regular doses while the machine runs, so bearings always have fresh grease and are rarely overgreased. It saves labour on machines with many or hard-to-reach points and reduces the risk of a missed point. In return, it needs a suitably soft grease and regular checks for leaks and blockages.
A grease nipple is blocked and will not take grease. What should I do?
Try fitting a new nipple first, as its check ball is often stuck with hardened grease or dirt. If it stays blocked, the passage or bearing may be packed with hardened grease and need dismantling and cleaning. Do not push pump pressure too high, because excessive pressure can blow out the bearing seals.
How should a grease gun be maintained?
Wipe the coupler after each use and cap it to keep dust off. When loading grease, bleed air through the bleed valve or by loosening the head so the gun does not lose prime. Inspect the hose and coupler regularly and replace them if cracked or no longer gripping the nipple firmly.
How should oil be dispensed from drums to keep it clean?
Use a hand or powered pump dedicated to each oil, with a filter in the dispensing line when the oil is for hydraulics. Intermediate containers should be sealed, lidded and labelled by oil type, never open buckets. A desiccant breather on the storage container limits water and dust ingress as oil is drawn off.
