
Ravi Patel
Project Manager, Arihant Infra
Rated 4.5 out of 5
Batching plant near Panvel. Mixer girth gear — 1.5 metre diameter, 24-hour operation during pour season. Maintenance skipped re-greasing for 2 weeks. Metal-on-metal noise. Three teeth scored, two chipped. Replacement: ₹2-5 lakh plus installation downtime.
Bitumen-based compound with extreme tackiness. Sticks like tar — intentionally.
Stays on vertical teeth — large gears rotate through all orientations. Resists monsoon washout — 2,500mm Mumbai rainfall. Absorbs shock — crusher impacts without squeezing out. Fills surface irregularities — older gears with pitting get better load distribution.
| Machine | Gear Size / Industry |
|---|---|
| Jaw crusher | 0.8-1.5m bull gear — quarry/mining |
| Cone crusher | 0.6-1.2m — mining |
| Batching plant mixer | 1-2m ring gear — concrete |
| Ball mill | 2-5m girth gear — cement/mining |
| Kiln | 3-6m girth gear — cement |
| Sugar mill rollers | 1-2m — sugar processing |
| Pack Size | Best For |
|---|---|
| 5 kg bucket | Single crusher monthly |
| 18 kg pail | Multiple machines quarterly |
| 50 kg drum | Cement plant |
| 180 kg barrel | Large industrial |
No minimum order. First order prepaid.
Stiff brush or paddle directly on gear teeth — root to tip. Apply during slow rotation. 1 kg covers ~2-3 sq m of gear surface. Jaw crusher bull gear: 2-3 kg per application. Reapply weekly or when film depleted.
Same-day dispatch for orders placed before 2 PM. Mumbai: evening delivery. Navi Mumbai / Thane: next morning. Pune / Nashik: 2-3 days.
Q: What is open gear grease made of?
Bitumen base with mineral oil, tackifiers, and EP additives. Intentionally thick and tacky — that's what makes it work on exposed gears.
Q: Can I use regular grease on crusher girth gear?
No. AP3/MP3 is too thin — won't stay on vertical surfaces, gets squeezed out under shock loads.
Q: How is it different from gel grease?
Open gear grease is bitumen — thicker, blacker, stickier. For very large slow gears. Gel grease handles higher temps. For crusher bull gears: open gear. For kiln girth: consider gel.
Q: How often reapply?
Weekly for single-shift crushers. More often during monsoon or continuous operation. If bare metal visible, reapply.
Q: Difficult to clean off?
Yes, intentionally. Use kerosene or diesel. Stickiness is the feature.
Supplied to crusher plants, batching facilities, and cement operations across MMR.