The pressure rollers basically derive from full complement double row cylindrical roller bearings. In some cases, they can be four-row, full complement cylindrical rollers. The outer ring, of great thickness, has three integral edges

It also has a very wear-resistant diametrical outer surface, cylindrical in shape, with bevels or fittings at the ends. The inner ring is in two parts, each equipped with an integral flange, designed to withstand the strong axial loads that accompany radial loads.

Originally, the pressure rollers were designed to be used on the continuous furnaces of sintering and pelletizing plants. These units, ready for assembly, are also suitable for all applications where high loads are present and the direction of rotation often reverses, or in applications where there are low speeds.

Pressure Rollers



Pressure Rollers


d1 D D1 B r1,r2 min R    min C C0 Cw C0w Weight
[mm]  [kN] [Kg]
RP 1000 110 157 210 158 110 2 10×15° 402 610 255 325 20
RP 1001 120 157 158 210 114 4 10×15° 550 915 330 455 19
RP 1002 140 187 250 188 114 3 13,5×17° 825 1400 512 750 25
RP 1003 140 187 280 188 114 3 13,5×15° 915 1460 671 1000 34
RP 1004 160 195 250 197 140 3 13,5×17° 2100 4400 1100 1830 26
= dynamic radial load as bearing Cw= dynamic axial load as roller
C0 = static radial load as bearing C0w= static axial load as roller
BH1 = Bainitic hardening for inner and outer ring
BH2 = Bainite hardening for outer ring only
For any other technical request or information, please consult our technical department




Pressure Rollers




1 – Outer ring

2 – Inner half-ring

3 – Cylindrical rollers

4 – O-Ring



The pressure rollers have the following technical features:

The outer and inner rings are usually made of 100CrMo7 (UNI 3097) hardened steel, steel with the best resistance to wear due to fatigue. Some executions provide for the bainitic hardening heat treatment in cases where the application is particularly subjected to shocks.
The suffixes to be added in this case are:
BH1 - Bainitic hardening for both rings;
BH2 - Bainitic hardening only for the outer ring.

Some executions require the use of 18NiCrMo5 (UNI 7846) case hardening steel. The surface hardness that can be achieved for these parts is 60 + 2 HRc.

These bearings, normally working in the presence of high temperatures, are always subjected to stabilization treatment for use up to 250 ° C.
The O-rings (FKM), inserted in a special groove of the inner ring edges, make the bearing non-separable and prevent the contamination from the outside and the leakage of the lubricant. The material allows it to be used up to 250 ° C.