Locking Element RfN 8006 stainless steel

RfN 8006 stainless steel
RINGFEDER RfN 8006 locking elements provide a wear-free, compact, screwless shaft-hub connection. Suitable for inner diameters from 6 to 1,000 mm and for light to medium loads. Easy installation with high precision.

Product Features

• Ideally adaptable – can be tailored to design requirements by adjusting the number of elements used, as well as the size and number of clamping screws
• High transmittable circumferential forces – up to 4 locking elements can be connected in series to increase torque and axial forces
• High reliability – suitable for static, alternating, dynamic, and shock loads
• Simple manufacturing – shafts and hubs remain keyless, relatively large tolerances are permissible
• Easy adjustability – operates without form fit, allowing the hub to be positioned and clamped at any desired location and orientation if mounting and dismounting instructions are followed
• Absolutely backlash-free – no risk of fretting or looseness
• High endurance under torsional fatigue – keyless design reduces notch effect and maximizes material utilization
• Easy installation – no need for thermal treatment or fitting work compared to interference fits; screws can be tightened using standard tools
• Easy disassembly – once the screws are loosened, the locking elements are released, and shaft and hub are freely movable
• Wear- and maintenance-free – unlimited service life if properly designed and used

Locking Element Installation

The values for T and Fax apply to locking elements installed in oiled condition.

Surface Tolerances

For shaft and hub bore: Ra ≤ 1 μm

Required Clamping Force

• For unslotted locking elements: FA = FA′ + F₀
• For slotted locking elements: FA = FA′
• For series arrangement of n locking elements:

To increase T and Fax:

• Tₙ = T₁ · m
• Faxₙ = Fax₁ · m

To reduce FA′ and p while maintaining T and Fax:

• FA′ₙ = FA′ / m
• pₙ = p / m