Lubrication

Industrial Supply · MRO Stop

Lubrication

Thousands of SKUs covering every lubrication need — from single grease fittings to complete centralized systems. As an authorized distributor of leading brands like Graco, Alemite, Parker, Lincoln, RAASM and more, we guarantee the fastest lead times in the market.

MRO Stop stocks a complete lubrication range covering six top-level product families and over 120 subcategories — from individual grease fittings and Zerk couplers through single-point automatic lubricators to fully assembled centralized progressive and dual-line lubrication systems. All categories are stocked with real-time availability displayed on every product page.

Use the sections below to browse by product family, or call our team for help with system sizing, product cross-reference, or sourcing a part not listed.

64 subcategories

Lubrication Systems & Accessories

The broadest category in our lubrication range — covering complete centralized systems, individual pump and valve components, controllers, monitoring devices, reservoir hardware, and all associated repair parts. Whether you are building a new multi-point system or sourcing a single replacement component, this is where to start.

Centralized supply

Grease Pumps

Standalone and drum-mounted grease pumps. Manual, pneumatic, and electric drive. For centralized dispensing and pump-to-point supply.

Ready to install

Grease Pump Packages

Complete pump packages with reservoir, motor, and mounting hardware. Bolt-on centralized lubrication system packages.

Single-line systems

Injectors

Individual metering injectors for single-line auto-lube systems. Adjustable output. Each injector cycles independently to deliver a measured dose.

Sequential distribution

Progressive Divider Valves

Multi-point distributors that cycle each outlet in turn. Easy to verify system operation. Standard and dual-line configurations.

Chain & conveyor

Conveyor Lubrication Systems

Complete automatic chain and conveyor belt lubrication packages. Timed spray or brush application. Reduces chain wear and extends service intervals.

Timing & cycle control

Lubrication Controllers

Electronic and mechanical controllers that trigger pump cycles at set time intervals or machine cycle counts. Programmable pause and run times.

Pumps & Packages

Oil Pumps Oil Pump Packages Lubrication Pump Packages Lubricant Pumps Grease Metering Pumps Conveyor Lubrication Pumps Pump to Point Lubricators Mobile Lubricators

Distributors, Valves & Injectors

Dual Line Divider Valves Piston Distributors Piston Distributor Accessories Piston Distributor Manifolds Divider Valve Accessories Injector Accessories Single Line Resistive Valves Mechanical Reversing Valves Electrical Reversing Valves Air Valves Spray Valves Lube Check Valves

Complete Systems & Applicators

Conveyor Lubrication Accessories Conveyor Lubrication Controllers Box Lubricators Box Lubricator Accessories Box Lubricator Parts Air Line Lubricators Air Line Filters Air Line Regulators Air / Oil Splitter Blocks Felt Applicators Chain Cleaner Brushes Nozzles

Controllers, Monitoring & Sensing

Lubrication Controller Accessories Lubrication Controller Parts High Pressure Indicators High Pressure Switches Low Level Reservoir Switches Proximity Switches Mechanical Cycle Switches Broken Line Indicators

Reservoirs, Repair & Accessories

Lubrication Pump Reservoirs Lubrication Valve Packages Reservoir Accessories Reservoir Base Assemblies Lube Filters Strainers Blowout Discs Meter Units Lube Pump Parts Lube Pump Accessories Lube Component Repair Kits Lube Component Repair Parts Lube Installation Accessories Lube Header Blocks Lube Tie Rod Kits Lube Orifices Electrical Connection Accessories Greases

8 subcategories

Single Point Lubricators & Accessories

Single-point automatic lubricators deliver a measured dose of grease or oil to an individual bearing, chain, or lube point over an extended period — removing the need for manual re-greasing. Available in spring-loaded, battery-powered, and gas-driven formats. Used wherever access is difficult, intervals are critical, or over-greasing is a concern.

Constant pressure

Spring Loaded Lubricators

Spring-pressure single-point lubricators delivering continuous positive pressure. Simple, reliable, no power source required.

Adjustable dispensing

Battery Powered Mechanical Canisters

Battery-operated lubricators with adjustable dispense rate and cycle programming. Long service life; suitable for hard-to-reach points.

Multiple outlets

Battery Powered Multi Point Canisters

Single battery-powered unit with multiple outlets for lubricating several bearings simultaneously from one lubricator body.

Gas-driven — metal

Gas Canisters for Lube — Metal

Electro-chemical gas-driven single-point lubricators in metal cartridge format. Consistent pressure delivery over the cartridge life.

Gas-driven — plastic

Gas Canisters for Lube — Plastic

Gas-driven lubricator canisters in lightweight plastic format for standard single-point bearing applications.

Complete packages

Lubrication Systems

Complete single-point lubrication system packages and kits. Pre-configured for direct installation.

Springs & Accessories

Springs Lubrication System Accessories

11 subcategories

Grease Guns & Accessories

Manual lever-action, pistol-grip, pneumatic, and battery-operated grease guns for all maintenance environments, plus the full range of accessories including extension hoses, couplers, rigid extensions, and bulk-loading equipment.

Manual, pneumatic & battery

Grease Guns

Lever-action, pistol-grip, air-powered, and cordless grease guns. Standard 14 oz cartridge and bulk-fill configurations.

Bulk-fill

Suction Grease Guns

Direct-fill grease guns that load from drums or pails. Eliminates cartridge waste in high-volume maintenance operations.

Couplers & adapters

Grease Gun Accessories

Hydraulic couplers, needle tips, fill adapters, dust caps, and other accessories for grease gun maintenance and operation.

Extension hoses

Grease Gun Whip Hoses

Flexible whip hoses and extension hose kits for reaching confined grease fittings. Standard and high-pressure ratings.

Precision oil dispensing

Oil Guns

Precision oil dispensers for spot lubrication of bearings, chains, slides, and other components requiring oil rather than grease.

Complete kits

Equipment Packages

Greasing equipment packages combining grease gun, couplers, hoses, and fitting tools in a single purchase.

Bulk Loading & Extensions

Injector Needles Loader Couplers Loader Fittings Rigid Extensions Packages

12 subcategories

Grease Fittings & Accessories

Standard Zerk fittings, button-head fittings, flush-type fittings, and specialty forms in NPT, metric, and BSPT thread standards — plus couplers, adapters, and fitting tools. Stocked in the thread forms most commonly found in North American and European industrial equipment.

Standard Zerk

Grease Fittings

Standard straight-type Zerk fittings. 1/4″-28 UNF, 1/8″-27 NPT, M6–M10 metric, BSPT. The most widely stocked grease fitting type.

Large dome head

Button Head Fittings

Button-head style fittings for use with button-head couplers where a standard Zerk coupler cannot get sufficient purchase.

Surface-flush

Flush Type Fittings

Flush-face fittings that sit level with the machinery surface. Used where a protruding fitting creates a clearance or safety issue.

Heavy equipment

Giant Button Head Fittings

Oversized button-head fittings for construction equipment, mining machinery, and other high-load applications.

Gun-end connectors

Zerk Couplers

Standard Zerk couplers for the gun end of the grease line. Straight, 90-degree, and flexible swivel configurations.

Installation & cleaning

Grease Fitting Tools

Fitting cleaning tools, installation sockets, and extraction tools for blocked or seized fittings.

Couplers, Adapters & Specialty Fittings

Button Head Couplers Giant Button Head Couplers Elbow Bodies Lube Adapters Lube Connectors Relief Fittings

14 subcategories

Lubrication Dispensing Components

Metering valves, control valves, nozzles, meters, and all associated accessories for building and maintaining lubrication dispensing circuits. Used at the point of application in both manual and automated lubrication systems.

Point-of-lube control

Lube Dispensing Valves

Manual and automatic dispensing valves for controlling lubricant flow at the point of application.

Electronically controlled

Electric Metering Valves

Solenoid-operated valves for programmable, precise lubricant dosing at individual points in automated systems.

Fixed-volume

Mechanical Metering Valves

Mechanically actuated valves delivering a consistent fixed volume per cycle. No electrical control required.

High-pressure circuits

High Pressure Control Valves

Control valves rated for high-pressure lubrication distribution lines and precision metering applications.

Oil & fluid circuits

Oil / Fluid Control Valves

Directional and flow control valves for oil and fluid distribution in lubrication dispensing systems.

Flow measurement

Electronic Meters

Digital flow meters and dosing meters for measuring lubricant output and supporting consumption tracking.

Accessories, Parts & Packages

Lube Dispensing Valve Accessories Lube Relief Valves Dispensing Valve Parts Dispensing Valve Packages Non-drip Nozzles Bar Accessories Bar Packages Bar Parts

13 subcategories

Fluid Management

Storage, handling, containment, and waste collection equipment for lubricants and industrial fluids. Covers new-fluid storage and dispensing, used-oil collection and disposal, and point-of-use contamination control.

Used fluid collection

Waste Oil Collectors

Portable and wheeled drain tanks for collecting used engine oil, hydraulic fluid, and other waste fluids during service.

Clean lubricant storage

Portable Fluid Storage Units

Mobile containers for new lubricants. Multi-compartment trolleys, drum carriers, and portable dispensing caddies.

Point-of-use dispensing

Oil Cans

Flexible-spout and pump-style precision oiling cans for manual lubrication of light machinery, bearings, and chains.

Contamination control

Oil Safes

Sealed, colour-coded containers for point-of-use fluid management and identification. Prevents cross-contamination.

Reservoir monitoring

Tank Level Monitors

Electronic and mechanical level indicators for lubricant reservoirs and storage tanks.

Fluid change equipment

Drains

Drain pans, drain plugs, and controlled-drain equipment for fluid changes and machinery servicing.

Controls, Accessories & Waste Handling

Control Units Control Unit Accessories Control Valves Oil Can Accessories Used Antifreeze Collectors Waste Oil Collector Accessories Waste Oil Collector Parts

Authorized Distribution

Featured Lubrication Brands

MRO Stop stocks lubrication products from these manufacturers — all genuine, all backed by full manufacturer warranties.

Graco

Transfer pumps, G3 automatic systems, grease pump packages, dispense valves

Alemite

Grease guns, grease fittings, lube pumps, centralized system components

Lincoln Industrial

Progressive divider valves, injectors, controllers, pump packages

RAASM USA

Drum and pail transfer pumps, fluid management equipment

Where Lubrication Products Are Used

Industry & Application Guide

⚙

Manufacturing & Assembly

Conveyor chain lubrication, bearing maintenance on production lines, CNC machine spindle and ballscrew re-greasing. Progressive and single-line systems most common.

🏗

Construction & Mining

Heavy equipment pin-and-bore lubrication, track and undercarriage grease points, bucket and boom pins. High-flow button-head fittings and high-ratio pumps.

🌟

Steel & Metal Processing

Roll neck and bearing lubrication on rolling mills, slitting lines, and presses. High-load EP grease applications requiring dual-line systems and high-pressure fittings.

✈

Transportation & Fleet

Truck chassis grease routes, fifth-wheel lubrication, kingpin maintenance, driveline universal joints. Lever-action and cordless grease guns with standard Zerk fittings.

🌿

Food & Beverage

Conveyor and mixer bearing lubrication using automatic single-point lubricators to reduce manual handling contact and maintain hygienic application practices.

🔢

Energy & Power Generation

Turbine and generator bearing maintenance, wind turbine pitch system and main bearing lubrication, pump and motor bearing re-greasing on scheduled intervals.

🔌

Pneumatic Tool Maintenance

Air line FRL lubricators protecting downstream pneumatic tools, cylinders, and valves in compressed air networks. Watts FluidAir QUBE lubricators fillable under pressure.

🌾

Agriculture

Tractor and harvester pivot-point greasing, PTO shafts, header drives, and auger bearings. Lever-action and battery-powered grease guns for field service.

🛒

Warehousing & Logistics

Forklift mast and chain lubrication, pallet conveyor system maintenance, dock leveler pivot grease points. Conveyor lubrication systems extend chain service life.

Common Questions

Frequently Asked Questions

What is the difference between a progressive divider system and a single-line injector system?

In a progressive (divider valve) system, lubricant is distributed to each outlet in a fixed sequence — every point receives a dose before the cycle repeats. This makes it easy to verify system operation at a glance. In a single-line injector system, individual adjustable injectors at each lube point cycle independently. Volume per point is adjustable without disassembling the line, which suits applications where lube requirements vary significantly between points.

What thread standard do most grease fittings use?

In North America, the most common standard is 1/4″-28 UNF, used on the majority of automotive and industrial equipment made or sold in the US. 1/8″-27 NPT is also widely used. European and imported equipment typically uses M6, M8, or M10 metric threads or 1/8″ BSPT. Our range covers all of these in straight, 45°, 90°, flush-type, button-head, and giant button-head styles.

What is the difference between a spring-loaded and a battery-powered single-point lubricator?

A spring-loaded lubricator uses a compressed spring to maintain constant positive pressure on the lubricant, delivering it continuously and slowly over the cartridge life. No power source is required and there is no programming capability. A battery-powered lubricator uses a motor drive or gas-generation cell to push lubricant at a programmable rate. Dispensing interval and volume can be set, making battery units appropriate where controlled, timed lubrication cycles are required.

When would I use a button-head fitting instead of a standard Zerk?

Button-head fittings are used when a standard hydraulic Zerk coupler cannot get sufficient mechanical engagement — typically where the fitting is recessed, surrounded by a guard, or the entry angle prevents a standard coupler from locking on. They require a matching button-head coupler on the gun end. Giant button-head fittings serve the same purpose on heavy equipment with larger-bore grease passages and higher-flow requirements.

Does MRO Stop carry replacement parts for lubrication pumps?

Yes. Our Lube Pump Parts and Lube Pump Accessories subcategories stock components for Graco, Lincoln, and Alemite pump systems including seal kits, vent valves, follower plates, and motor assemblies. Lube Component Repair Kits and Lube Component Repair Parts are also available for a wider range of system components.

Does MRO Stop support B2B purchasing accounts for maintenance departments?

Yes. MRO Stop runs on OroCommerce, which supports company accounts with multiple users, purchasing approval workflows, saved shopping lists for recurring lubrication supply orders, cost-centre tracking, and order history export. Contact our team to configure an account structure that matches how your maintenance department manages procurement.