STD-RCF 8 TWO BALL ON ROD ROLLING CONTACT FATIGUE

Description

This device appears as Device Number 211 in the ASLE Friction and Wear devices book and was

originally developed by NTN in the 1960s.

The RCF 8 is designed for evaluating rolling contact fatigue (RCF) performance under high-speed

and high-load conditions. It features a 12 mm rod specimen loaded against a 60 mm motordriven roller using two 20 mm diameter balls, which are supported and guided by profiled rollers.

A pneumatic actuator applies up to 4 kN of load, generating contact pressures up to 6 GPa.

With a 5:1 drive-to-test roller ratio, the test roller can reach 30.000 rpm, enabling rapid fatigue

testing for high-throughput data collection. A compact servo motor ensures precise speed control,

while the touch-screen interface allows for easy operation with minimal training. Designed for

bench mounting, the rig is space-efficient and ideal for fatigue life assessments of bearing steels.

Features

Wide Speed Range: 100 – 30.000 rpm

High Load Capacity: Up to 4 kN

User-Friendly: Simple touch-screen operation

Compact Design: Bench-top mounted for space efficiency

Cost-Effective: Reliable RCF testing at an affordable cost

Technical Specifications