Page 18 - Olipes Industrial Maintenance

Bearings • Pulleys

Bearing: a part designed to reduce the friction of a moving shaft by means of rolling elements located
between two tracks, generating a rolling friction.
Pulley: a system used to transfer mechanical power between separate shafts at different heights, with the aim
of varying the speed and torque between these shafts. The power to be transferred is limited by the dimensions
and number of pulleys. If both the driver pulley and the driven pulley do not move to the shaft together they will
both use bearings or bushings on each shaft.
Lubricating with oils

For the lubrication of bearings and bushings in forced oil circulation systems or by crankcase please see the
Multipliers section (pages 8-9) in this catalogue.
Lubricating with greases

RECOMMENDATIONS:
The choice of lubricant for these elements will depend on:
• Operational factors of the element to be lubricated: load, vibration, service temperature, cold start
temperature, maximum limits of temperature and speed.
• External contaminants: moisture, water, alkalis, acids, mud, dust, abrasive solid substances ...
• Operational and environmental requirements: contact with food, biodegradability ...
Fluid greases are generally preferred in central lubrication, although the use of NLGI 0, 1 and 2 consistency
greases is becoming increasingly frequent , depending on the type of pump and nominal pressure, the
diameter of the tubes, length of the circuit, number of cubits … and the design and recommendations of the
manufacturer of the equipment.
Although the recommendations of the manufacturer or assembler of the equipment are always used as
a reference, we will now provide details of the greases recommended by OLIPES in accordance with the
operational factors, external contaminants and operational and environmental requirements which enable us
to optimise the performance of the equipment in question:

Standard conditions and high pressure
MAXIGRAS C45 EP

General multi-purpose EP Grease recommended for the lubrication of all types of bearings
operating in standard conditions..
NLGI 2* DIN KP2K-20 ISO-L-XBCEB-2 -20ºC to +120ºC (+135ºC)
Recommended for use in installations with an automatic lubrication system and in single-
point lubricators.

MAXIGRAS 110 EP/220
A EP grease with a high-viscosity base oil and stringy additives, recommended for bolts
and parts operating at low to medium revolutions in a moist and dusty environment with
very high pressures. Suitable for manual lubrication and automatic greasing systems using
NLGI 2 consistency greases.
NLGI 2 DIN KP2N-30 ISO-L-XCDEB-2 -30ºC à +140ºC (+165ºC)
Multi-purpose use in standard conditions (up to 120º C and 3000 rpm)

MAXIGRAS 46
A multi-purpose EP grease. Contains solid additives (MoS ). Recommended for the
2
lubrication of friction bushings operating in standard conditions.
NLGI 2** DIN KPF2K-20 ISO-L-XBCEB-2 -20ºC to +120ºC (+140ºC)

* Available in NLGI consistencies 00/000, 0, 1, 2 and 3
** Available in NLGI consistencies 2 and 3.
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