Klüber POLYLUB GLY 791 Special synthetic lubricating grease 25kg

Klüber POLYLUB GLY 791 Special synthetic lubricating grease 25kg

€ 3708.8 3,708.80 incl. VAT (3,116.64 excl. VAT), per piece *

Availability: shipping in 1-2 weeks

Packaging unit: 1 piece

Manufacturer: KLUBER

Country of origin: DE/0004

Customs tariff number: 34031980

Weight per piece: 25.0 kg

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Special synthetic lubricating grease for plain bearings subject to high loads and temperatures

POLYLUB GLY 791 is based on a synthetic hydrocarbon oil, mineral oil and special lithium soap. It has been designed for friction reduction and wear protection of plain bearings and slideways with metal/metal or plastic/metal material pairings.
This special lubricant covers a wide range of operating conditions, from low to high speeds and loads, even in the case of fibre-reinforced plastic components and metal/plastic sliding pairings.
The lubrication of plastics is special in a number of ways . As the behaviour of metals and plastics differs in many aspects, the lubricant’s properties have to be adjusted to the plastic. Compared to many metals, plastics are relatively soft. Solid lubricants, which may achieve a positive effect on many metal friction points, can have a negative or no effect at all on plastic lube points. With the formulation of POLYLUB 791, Klüber Lubrication offers a product which is free of solid lubricant, but covers the many operating conditions mentioned above.
Owing to the many different plastic compositions, however, we recommend checking their compatibility particularly prior to series application.
Content: 25kg bucket
Available in 400g cartridge, 1kg can, 25kg bucket

Benefits for your application

Application

Vehicles: Seat mechanisms, shock absorbers
Slideways, plain bearings: For many types of plain bearing designs. POLYLUB GLY 791 prevents stick-slip to a large extent, particularly in applications where normally a hydrodynamic film cannot form.
Owing to the good damping properties, noise and cracking is considerably reduced.

Application notes

POLYLUB GLY 791 is applied by brush, spatula or automatic metering systems. The use of central lubrication systems is possible in principle but should be checked in each individual case.

Product data

NLGI grade, DIN 51818	1
Lower service temperature	-40 °C / -40 °F
Upper service temperature	150 °C / 302 °F
Color space	orange
Worked penetration, DIN ISO 2137, 25 °C, lower limit value	310 x 0.1 mm
Worked penetration, DIN ISO 2137, 25 °C, upper limit value	340 x 0.1 mm
Shear viscosity at 25°C, shear rate 300 s-1, equipment:rotational viscometer, upper limit value	9 000 mPas
Shear viscosity at 25 °C, shear rate 300 s-1, equipment: rotational viscometer, lower limit value	6 500 mPas
Corrosion inhibiting properties of lubricating greases, DIN 51802, (SKF-EMCOR), test duration: 1 week, distilled water	<= 1 corrosion degree
Drop point, DIN ISO 2176	>= 230 °C
Oil separation, based on ASTM D 6184 [FTMS 791 C 321] after 30 h/150 °C	<= 9 % by weight
Four-ball tester, wear factor, DIN 51350 pt. 05, 1 h/400 N, wear scar diameter	<= 0.9 mm
Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx.	36 months