Retrofit & spare parts
Buffers for ELBO-R
Wear part
Barrel-shaped elastomer buffers for the ELBO-R pin coupling: standard NBR 80 Shore A, plus soft, hard, insulating, low and high temperature types.
In the ELBO-R pin coupling the barrel-shaped buffers transmit the torque and are loaded in compression only. With correct selection and alignment they can be expected to last a long time. Thanks to their barrel shape and their freedom of movement in the bores, they compensate shaft misalignment in angular, radial and axial direction. The buffers are plug-in mounted: pins and buffers can be replaced without moving the motor or machine axially.
The standard is NBR with 80 Shore A. For special duties there are five further types, identified by colour or a colour dot: electrically insulating, soft, hard, low temperature and high temperature. The buffers are wear parts; their service life depends on the operating conditions. We supply them as a set to suit the coupling size, for ELBO-R sizes 105 to 2000. Dimensions and quantity per set are given in the data sheet.
Versions
| Version | Hardness | Identification | Temperature |
|---|---|---|---|
| NBR Standard | 80 Shore A | black | -30 °C … +80 °C |
| NBR electrically insulating | 80 Shore A | green | -30 °C … +80 °C |
| NBR soft | 60 Shore A | black with green dot | -30 °C … +80 °C |
| NBR hard | 90 Shore A | black with magenta dot | -30 °C … +80 °C |
| NR for low temperature | 80 Shore A | black with white dot | -50 °C … +50 °C |
| HNBR for high temperature | 80 Shore A | black with red dot | -10 °C … +100 °C |
Data as per data sheet. Other hardnesses and special designs on request.