How to select and locate single-point lubricators

Select a single-point lubricator by matching its lubricant, reservoir capacity, discharge rate, pressure capability and operating limits to one confirmed lubrication point.

Locate it where it can deliver reliably and be inspected safely. Direct mounting gives the shortest feed path, while remote mounting can protect the device or move servicing away from heat, vibration, washdown and hazardous access.

Automatic lubrication does not correct an unsuitable lubricant, damaged component, blocked feed path or incorrect lubrication requirement. Follow the equipment and lubrication-system manufacturers' instructions, complete a documented calculation and commission the installation before relying on it.

Which applications suit a single-point lubricator?

A single-point device is intended to serve one suitable point. Typical candidates include individual bearings, plummer blocks, electric motors, fans, pumps and selected seals or chains where the manufacturer approves the method.

Known lubricant and relubrication requirement
Demand within the device's adjustable delivery range
A clear feed path and relief for displaced grease where required
Operating temperature and pressure within device limits
Space for direct or engineered remote installation
Safe access for activation, inspection and replacement

Which device characteristics should be compared?

Different drive technologies and reservoir sizes behave differently. Use the manufacturer's data for the exact model.

Grease or oil capability and compatible lubricant range
Reservoir capacity and available fill options
Discharge period and adjustment method
Pressure output and response to back pressure
Operating and storage temperature
Ingress protection and resistance to washdown or chemicals
Vibration, orientation and hazardous-area limits
Status indication, connectivity and alarm functions
Ability to pause, restart or adjust where required

How is the starting delivery calculated?

Begin with the bearing or equipment manufacturer's quantity and interval. Convert that requirement to the device's daily or monthly delivery using actual operating hours, then apply only the corrections specified by the device manufacturer.

Do not select a setting from cartridge life alone. A twelve-month setting describes how slowly the reservoir empties, not whether that rate matches the component.

For bearing applications, review the bearing lubrication guidance and use a manufacturer-approved calculation tool where available.

When is direct mounting suitable?

Direct mounting minimises fittings and line resistance. It is generally preferred when the point can support the device and the location remains within its environmental and access limits.

Check thread and adapter compatibility
Ensure the device does not obstruct guards or moving parts
Support the mass where vibration or orientation requires it
Protect it from impact, heat and direct cleaning spray
Keep the status indicator visible where practical

When should remote mounting be considered?

Remote mounting can move the lubricator to a safer or more stable location, but tubing and fittings increase resistance.

The point is behind a guard or difficult to reach
Heat or vibration may damage the device
High-pressure washdown or aggressive chemicals affect the location
The device would be exposed to impact or product debris
Inspection or replacement requires safer access

What must be checked for a remote feed line?

Follow the device manufacturer's maximum line length and tubing specification. Actual capability depends on grease consistency, temperature, line diameter, fittings and bearing back pressure.

Use the shortest practical route with the correct internal diameter
Avoid tight bends, kinks, low points and unsupported tubing
Keep fittings to the necessary minimum
Protect the line from heat, movement, crushing and cleaning damage
Prime the line with compatible clean lubricant where instructed
Label the remote device and its destination point clearly

How should the installation be commissioned?

Do not attach a new device to an unknown or blocked point.

Verify the point, lubricant and calculated setting.
Clean the fitting area and prepare the point under the approved procedure.
Confirm the passage is open and old lubricant can escape where required.
Install approved adapters, supports and tubing.
Prime remote components as instructed.
Activate the device and record its start date and setting.
Confirm discharge and delivery at the point.
Inspect soon after start-up, then move to the validated routine interval.

How should performance be verified?

Check device status, activation date and remaining lubricant
Inspect mounting, supports, adapters and protective covers
Check the feed line for kinks, leaks, separation and damage
Confirm lubricant arrival, not just cartridge movement
Inspect the point for correct purge and absence of excess
Trend bearing temperature, vibration or sound
Compare actual reservoir depletion with expected delivery
Review the setting after temperature, duty or lubricant changes

A device that is running or becoming empty has not necessarily delivered the intended quantity into the component. Verification must include the lubrication point, feed path and asset response.

What records should be kept?

Asset, point and device identifier
Lubricator model, reservoir and drive type
Lubricant name, registration and batch where required
Calculation, setting and expected replacement date
Direct or remote mounting details
Line length, tube size, adapters and support
Commissioning and early inspection results
Changes, alarms, replacements and condition trend

Frequently asked questions

Is direct mounting always better?

It gives the shortest feed path, but heat, vibration, access, washdown or impact may make remote mounting more reliable. The remote layout must stay within the device's technical limits.

How long can a remote grease line be?

There is no universal length. Use the exact manufacturer's limit for the device, grease, temperature and tubing. Back pressure and fittings can reduce the practical distance.

Can one single-point lubricator feed two bearings?

A device intended for one point should not be split informally. Unequal resistance can cause uneven delivery. Use an approved multi-point or metered system when several points must be supplied.

Can the lubricator be fitted to a blocked grease point?

No. Clear and inspect the point and confirm a suitable purge path before commissioning. A device may empty slowly or alarm without lubricant reaching the bearing.

Summary

Single-point selection begins with the component's lubricant demand and operating conditions. Direct mounting reduces resistance, while remote mounting improves access or device protection when the line is engineered, primed and verified.

Automatic delivery improves consistency only when the lubricant, quantity, interval, device, installation and inspection routine are correct for the application.

Need help with automatic lubrication?

Explore Activate's automatic-lubrication solutions, lubricants and equipment and performance-verification services, or contact the Activate team to discuss an application.