Housing: | Pressed steel,zinc-plated Double ballrace swivel, dust- proof seal |
Wheel: | Grey thermoplastic rubber plain bearing (SNR,MNR) Ball-bearing (SNB) Non-marking,durable Temperature Range -5 ° C 70 ° C Hardness: 85 ± 3 shore A |
370/380 Series (STD . European) MNR – SNR