GEM..ES-2RS Series (Metric Heavy Duty)
Material: Bearing Steel / Hardened Steel (Heavy Section)
Sealing: Double-Lip Seals (2RS)
Lubrication: Pre-greased, sealed
Structure: Steel-on-Steel / Heavy Duty Metric / Double-Sealed
Bore Range: 20mm – 250mm
Application: Demolition hammers, tunnel boring machines, mining shovels, forging presses
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The GEM..ES-2RS Series heavy-duty spherical plain bearings feature an increased-width outer ring and reinforced inner ring for superior load distribution under extreme conditions. The double-lip seals provide reliable contamination protection while the pre-packed high-performance grease handles heavy oscillating loads. Designed for applications where standard spherical plain bearings experience premature wear. Used in demolition hammer pivots, tunnel boring machine cutters, heavy mining shovel joints, and forging press linkages.
Technical Specifications
| Bearing No. | Bore (d) mm | Outer Dia. (D) mm | Width (B) mm | Dyn. Load Cr (kN) | Stat. Load Cor (kN) | Ref. Speed (rpm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| GEM 15 ES-2RS | 15 | 30 | 16 | 36.0 | 72.0 | - | 0.055 |
| GEM 20 ES-2RS | 20 | 40 | 22 | 62.0 | 124 | - | 0.130 |
| GEM 25 ES-2RS | 25 | 47 | 28 | 90.0 | 180 | - | 0.220 |
| GEM 30 ES-2RS | 30 | 55 | 32 | 116 | 232 | - | 0.340 |
| GEM 35 ES-2RS | 35 | 62 | 36 | 146 | 292 | - | 0.480 |
| GEM 40 ES-2RS | 40 | 68 | 40 | 176 | 352 | - | 0.640 |
| GEM 45 ES-2RS | 45 | 75 | 43 | 212 | 424 | - | 0.820 |
| GEM 50 ES-2RS | 50 | 80 | 45 | 245 | 490 | - | 0.950 |
