Vibration dampers Vibration dampers Buffer Types Buffers in different types and sizes. Vibration dampers Type DB Buffer /vibrationdamper type DBF or DBH. Ø20-Ø40. M4.5-M7,0. Height 10-46 mm Vibration dampers Type GMR, RMR Buffer (vibration damper) "sandwich"-type: GMR or RMR. Vibration dampers Type GS Buffer (Vibration damper) type GS. With single (GS-M1) or dual steel plates (GS-M2). Steel plate thickness: 5, 10 or 15 mm. Vibration dampers Type GF Buffer (vibration damper) type GF. Ø55-Ø188 mm Vibration dampers Type PU Red, blue and green polyurethane dampers/buffers. PU 80 shore = red PU 90 shore = blue PU 95 shore = green