RfN 8006 stainless steel
Stainless steel locking elements.
RINGFEDER RfN 8006 locking elements can be used to establish compact, screwless, and wear-free shaft-hub connections
RfN 8006 stainless steel
RINGFEDER RfN 8006 locking elements can be used to establish compact, screwless, and wear-free shaft-hub connections. For inner diameters from 6 to 1000 mm, low to medium loads. Simple installation, high precision.
- Perfectly customisable to meet design requirements and conditions – in terms of how many locking elements are to be used, as well as the size and number of clamping screws.
- Large transmissible peripheral forces – up to 4 locking elements can be arranged in series to increase the torques and axial forces.
- High reliability – regardless of whether the connection is subjected to static, pulsating, dynamic or impact loads.
- Straightforward production – shafts and hubs are not keyed. In addition, relatively large tolerances are possible.
- Easy adjustability – locking elements are not positive locking. This means that the hubs can be locked at any point and in any position, provided that the assembly and disassembly instructions are followed.
- Easy adjustability – locking elements are not positive locking. This means that the hubs can be locked at any point and in any position, provided that the assembly and disassembly instructions are followed.
- 100% backlash-free – no risk of coming loose.
- High fatigue resistance under alternating torsional stresses – shaft and hub are not keyed, resulting in a low notch effect and a higher polar section modulus.
- Easy installation – in contrast to cross-press fits, there is no need for heat treatment or fitting work. Screws may only be tightened using standard tools.
- Simple disassembly – the RfN 8006 locking elements are released as soon as the clamping screws are undone. Shaft and hub are freely movable.
- Wear and maintenance-free – unlimited service life if sized and used correctly.
Locking element installation
The values for T, Fax apply to oil-lubricated, installed locking assemblies.
Surface tolerances
For shaft and hub bore: Ra ≤ 1 μm
Required screw tension force
- For solid locking elements: FA = FA´ + F0
- For slit locking elements: FA = FA´
n locking elements
If n locking elements are connected in series, the following applies to the increase in T and Fax:
- Tn = T1 · m
- Faxn = Fax1 · m
When elements are connected in series, it is possible to reduce FA´, and p while retaining the values for T and Fax. In this case, the following applies:
- FA´n = FA´/m
- PN = p/m
