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- Manuals
- 2
- Languages
- PT
- Last added
- 2026-09-30
Featured Ringfeder manuals

RINGFEDER RfN 4061 Contraction Rings Technical Catalog
The RINGFEDER RfN 4061 contraction rings provide a modern method for creating a mechanical interference fit, compressing an inner cone ring to securely fix a hub to a shaft. They are suitable for high‑speed applications such as gears, pulleys, couplings and flanges.
The catalog lists detailed specifications, including maximum clearance, surface‑finish requirements, torque limits and optional nickel plating, together with calculation guidelines for cube and shaft design. This manual is written in Portuguese.
Covers: Summary · Features · Dimensions · Explanations · Optional Nickel Coating · Surface Finish
Latest Ringfeder manuals
RINGFEDER RfN 4061 Contraction Rings Technical Catalog
Product Leaflet 48 pages · 4.6 MB · PTTechnical catalog with dimensions, torque, axial force, material and application data for RINGFEDER RfN 4061 contraction rings.
Ringfeder 7004 ECOLOC technology data
This document introduces the 7004 ECOLOC product from RINGFEDER POWER TRANSMISSION company, which is the extended design of series 7003 ECOLOC. This product has the characteristics of small outer diameter and low pressure, which allows for a very cost-effective design of the hub.
Questions answered in Ringfeder manuals
What is the purpose of RINGFEDER contraction rings?
They provide a modern method to create a mechanical interference fit by compressing an inner cone ring, fixing a hub to a shaft.
From: RINGFEDER RfN 4061 Contraction Rings Technical Catalog
How should the fixing bolts be lubricated?
Fixing bolts should be lubricated with MoS₂ (μ tot = 0.1).
From: RINGFEDER RfN 4061 Contraction Rings Technical Catalog
