Wholesale Industrial Lubricant & Oil Suppliers
Industrial lubricants reduce friction, wear, and heat in machinery across manufacturing, automotive, mining, food processing, and energy industries. Towobo connects maintenance managers, MRO distributors, and OEM fill suppliers with verified wholesale suppliers of gear oils, hydraulic fluids, cutting fluids (metalworking fluids), greases, compressor oils, turbine oils, chain and wire rope lubricants, and food-grade lubricants. Sourced from Germany, USA, Japan, Netherlands, South Korea, and China with full ISO viscosity grade specifications, OEM approvals, and NSF H1 certificates where applicable.
Lubricant Types and Applications
Gear oils: ISO VG 68–1500 for enclosed gear boxes; EP (extreme pressure) additives (ZDDP or sulphur/phosphorus) for high-load hypoid and worm gears; synthetic PAO gear oils for extended drain intervals. Hydraulic fluids: ISO VG 32, 46, 68 for mobile and industrial hydraulics; HEES biodegradable ester hydraulic fluids for environmental sensitivity zones; HWCF (water-based fire-resistant) for foundry and mining. Cutting fluids: water-soluble metalworking fluids (emulsions, semi-synthetics, synthetics) for turning, milling, grinding, drilling; neat cutting oils for broaching and heavy-duty operations; bio-stable metalworking fluids for low-biocide requirements. Greases: NLGI 2 multipurpose lithium grease (most widely used); calcium sulfonate complex for water washout resistance; PTFE-filled for food processing; bentonite clay grease for high-temperature applications. Turbine oils: ISO VG 32 and 46 with rust and oxidation (R&O) inhibitors; turbine-approved oils (GE, Siemens approvals).
ISO Viscosity Grades (ISO VG)
ISO VG (ISO 3448) classifies industrial lubricants by kinematic viscosity at 40°C in centistokes (cSt). Standard grades: ISO VG 10, 15, 22, 32, 46, 68, 100, 150, 220, 320, 460, 680, 1000, 1500. Each grade has a ±10% tolerance band around the midpoint. Selection guides: spindle oils (ISO VG 2–10), hydraulic oils (ISO VG 32–68), gear oils (ISO VG 150–460), open gear compounds (ISO VG 680–1500). For automotive lubricants, SAE viscosity grades (0W-20, 5W-30, 15W-40) apply — conversion: SAE 30 monograde ≈ ISO VG 100; SAE 40 ≈ ISO VG 150. Synthetic base oils (PAO, ester, PIB) allow higher VI (viscosity index >200) enabling cross-grade performance.
NLGI Grease Consistency Grades
NLGI (National Lubricating Grease Institute) grades define grease consistency by penetration depth (ASTM D217): Grade 000 (very fluid, semi-fluid), Grade 0 (semi-fluid), Grade 1 (soft), Grade 2 (most common multipurpose), Grade 3 (firm), Grade 4 (very firm), Grade 5 (hard), Grade 6 (very hard). NLGI 2 lithium EP grease is the global standard for wheel bearings and industrial general purpose. Selection by application: Grade 0 for centralised lubrication systems; Grade 2 for ball and roller bearings, chassis; Grade 3 for applications subject to vibration; Grade 4–5 for open gears and wire ropes.
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