SKF
Lubricant Metering Devices
SKF lubricant metering devices are the precision components that divide and dose the lubricant from a central pump to individual bearings or machine points. The range includes single-line injectors (with adjustable or fixed output), dual-line metering distributors (with visual or proximity switch indication), progressive distributor blocks, and multi-line pump elements. Each device is designed for a specific system architecture and ensures that every lubrication point receives exactly its specified volume of lubricant at each system cycle. SKF’s metering devices are manufactured to tight tolerances, with robust internal components that resist wear and provide consistent output over millions of cycles. Correct selection and adjustment of metering devices is essential for system performance; SKF provides output charts and selection tools to simplify the specification process for each lubrication point on the machine.
Send an Enquiry
We'll get back to you on WhatsApp.
Trusted by Industry Leaders
Single‑Line Injectors
Adjustable (0.01‑1.0 cm³) or fixed output.
Dual‑Line Distributors
Mechanically indented, visual and proximity switch verification.
Progressive Blocks
Sequential, verifiable discharge; cycle‑switch monitoring.
Multi‑Line Pump Elements
Individual pump plunger per point.
Material Options
Zinc‑plated steel, stainless steel, and corrosion‑resistant coatings.
Interchangeable Dosing
Snap‑in or screw‑in dosing sets for output changes.
Verifying Progressive Distributor Operation
A magnet embedded in one distributor piston triggers a proximity switch each time the block cycles. If the block stalls due to a blockage, the cycle signal stops, and the controller alarms. This positive‑indication principle is a key safety feature for presses and moulding machines where missed lubrication can result in catastrophic damage.
Sizing an Injector for a Motor Bearing
A 6308 bearing requires approximately 6‑8 g of grease per relubrication. The SKF injector is selected with a 0.5 cm³ output per stroke, and the controller is set to deliver 12 strokes during each lube event. This precision eliminates the guesswork of a hand‑operated grease gun.