BEARINGS PRODUCTION RANGE

Depending on size and design, the bearings are equipped as standard with one of the following cages: unhardened
pressed steel roller centered, one-piece window type brass inner or outer ring centered, two-piece machined brass
roller centered (suffix M) or outer ring centered (suffix MA) or inner ring centered (suffix MB) and steel pin-type for
pierced rollers.
Lubrication grooves in the guiding surfaces of machined brass cages are also available (suffix MAS and MBS).
RKB cylindrical roller bearings undergo a special heat treatment of stress relieving which allows them to be operated
up to a temperature of +150° C.
The tolerances are in accordance with ISO 492:2002.
The radial internal clearance, even smaller or greater than normal, is in accordance with the range class of ISO 5793
measured for unmounted bearings under zero measuring loads.
The axial internal clearance for fixed design bearings, which can locate the shaft axially in both directions, is
specified as per experienced rule.
Bearings with no standard radial clearance or with special stated values required by specific applications can be
supplied to special order.
Bearings made of case hardened carburizing alloy steels can be produced for particular applications, where
required (suffix HA1, HA2, HA3 and HA4).
Besides, special treatments for rings and rollers are available (e.g. bainite quenching hardened for rings - suffix
HB1 -, anti-wear surface treatment etc.).
Highlights
Part number:
Bore:
Outside diameter:
Width:
Mass:
Dynamic load carrying capacity:
Static load carrying capacity:
Application:
NU 18/900 MASP6ZBS1AVH
900 mm
1090 mm
85 mm
168 kg
2320 kN
5950 kN
Azimuthal Retractable Thruster/Shipyard Industry
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