Round bellows
Technical data
Industrial round bellows are another type of coated fabric bellow that is great for dust protection, laser machines, and guideways that don't see high chip loads. They offer maximum compression and flexibility in a wide range of materials for a wide range of environments. Our round bellows are specifically designed to protect shafts and other cylindrical machine components.
Stitched Assembly
Glued Assembly
Standard mounting options
COLLAR
Different fixing devices are possible on either side.
FLANGE
Different fixing devices are possible on either side.
Material options for round bellows
Our bellows are made exclusively from high-quality plastic fabrics and foils. We select the cover material and processing according to the design ambient conditions. Decisive factors are the mechanical and thermal strain of the bellows as well as the type of swarf and aggressiveness of the agents used. Exact details of the used materials may be gathered from the table of materials above.
| Specification Number | Coating Ext Int | Carrier | Thickness (mm) | Color | Heat Sealed | Stitched | Lamella | Round Stitched | Wear Resistance | Oil Grease Coolant Resistance | Surface Stability | Swarf Weld Splatter Forging Scale Resistance | Self Extinguishing | Flame Resistance | Extension Compressions Ratio |
| OZ-PUR | PUR/PUR | Polyester | 0.35 | Black | x | x | x | + | + | ++ | + | o | - | + | |
| GN807 | PUR/PUR | Polyester | 1.00 | Black | x | x | x | + | + | - | - | o | - | - | |
| NA-784 | TPU/TPU | Polyester | 1.00 | White | x | x | x | x | + | + | - | - | o | - | - |
| OZ-PUR | PUR/PUR | Polyester | 0.22 | Black/Grey | x | x | + | + | o | o | o | - | ++ | ||
| OZ-23 | PVC/PVC | Polyester | 0.23 | Black | x | x | + | + | o | - | - | - | ++ | ||
| OZ-35 | PVC/PVC | Polyester | 0.36 | Black | x | x | x | + | + | + | o | o | - | + | |
| ALUM-ARAMID | ALU/ALU | Nomex | 0.35 | Black | x | x | x | + | + | + | ++ | ++ | + | + | |
| PURT/TEFLON | PTFE/PUR | Polyester | 0.30 | Black | x | x | x | ++ | ++ | ++ | o | o | - | + | |
| NEOPRENE | NEP/NEP | Nylon | 0.40 | Black | x | x | x | x | ++ | ++ | ++ | ++ | o | - | o |
| HYPALON | HYP/HYP | Nylon | 0.40 | Black | x | x | x | x | + | + | + | o | o | - | o |
++ Excellent + Good o Suited Under Certain Conditions - Unsuitable
Table of materials
| Commonly Used Materials | Details |
| Polyurethane (PUR) | Temperature Resistance up to 120°C |
| Aluminized | Aluminum-coated Nomex® - temperature resistance up to 400°C (only for stitched version) |
| Nomex® | Flame-resistant material, suitable for laser applications |
| Kevlar® | High strength, abrasion resistant, puncture resistant |
| Polyvinylchloride (PVC) | Material does not continue burning if ignited (self-extinguishing) |
| Teflon® Polytetrafluorethylen (PTFE) | Anti-adhesive, high-chemical and thermal resilience, dirt and water-repelling, corrosion-proof |
