Kixx GEAR EP
Extreme-pressure industrial gear oil · ISO 100 to 460 · FZG stage 12 · DIN 51517 Part 3 CLP
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What it is
A high-performance extreme-pressure industrial gear lubricant for enclosed gears working under high load and shock load, published in five ISO grades from 100 to 460 — AGMA 3EP through 7EP.
Applications
- All industrial and mobile equipment needing mild EP gear lubricants
- Enclosed gear drives and speed reducers, from small gearboxes to large high-power units on metal rolling mills, cement mills, sugar mills and mine hoists
- Chain cases, sprockets, slide guides and flexible couplings
- Plain and rolling element bearings
Performance standards it is written against
- ANSI/AGMA 9005-E02
- US Steel 224
- David Brown Table E
- DIN 51517 Part 3 CLP
What that buys you
- High load-carrying capacity extends gear life
- Excellent oxidation resistance supports extended drain intervals
- Rapid water separation
- Protection against rust and corrosion
Typical properties
| ISO grade | 100 | 150 | 220 | 320 | 460 |
|---|---|---|---|---|---|
| AGMA grade | 3EP | 4EP | 5EP | 6EP | 7EP |
| Viscosity @ 40 °C, mm²/s | 95.2 | 142.5 | 206.9 | 305.1 | 432.1 |
| Viscosity @ 100 °C, mm²/s | 11.7 | 15.4 | 19.6 | 25.3 | 31.3 |
| Viscosity index | 112 | 111 | 108 | 107 | 104 |
| Pour point, °C | −18 | −18 | −18 | −15 | −15 |
| Flash point, °C | 242 | 248 | 256 | 260 | 268 |
| Timken OK load, kg | 30 | 30 | 30 | 30 | 30 |
| FZG pass stage | 12 | 12 | 12 | 12 | 12 |
Every figure on this page is GS Caltex’s own published value from the Kixx GEAR EP product data sheet. Confirm against the current sheet for the batch you buy — ask us and we will send it with the quotation.
FZG stage 12 and Timken 30 kg — what those two numbers mean on your gearbox
FZG is the scuffing test, run in twelve increasing load stages. A mineral gear oil that fails at stage 8 or 9 will scuff a hardened gear tooth under shock load; stage 12 is the top of the standard test, and every grade here reaches it. Timken OK load is the other half — 30 kg is the film strength under a sliding load, which is what a kiln girth gear or a mill pinion actually sees.
Both figures are why this oil is specified on cement mills, sugar mills, rolling mills and mine hoists rather than a plain circulating oil. The approvals say the same thing formally: DIN 51517 Part 3 CLP, ANSI/AGMA 9005-E02, US Steel 224 and David Brown Table E.
Picking the grade: the AGMA number and the ISO number are the same oil — ISO 220 is AGMA 5EP. Work from the gearbox maker’s plate. If nothing is marked, the oil temperature and the pitch-line speed decide it, and we will size it from the nameplate if you send it.
Related
- Kixx GEAR EP S — the PAO synthetic, for micro-pitting resistance and long drains
- GS Caltex Kixx gear oils — the full range
- Industrial gear oil change intervals
- Cement plants and mining and quarrying
- Oil analysis service — wear metals and viscosity trending on the gearbox