Gearboxes designed for the transfer of power or torque can only perform effectively when excessive wear which can occur at high or fluctuating loads, particularly around the reference circle, is avoided. The life of a gearbox depends on the correct selection of the most suitable lubricating oil. The principal function of a gear oil is not just to lubricate bearings and the gears themselves, i.e. to reduce friction and avoid wear but also to provide protection against corrosion, to cool and to seal. The RENOLIN CKC gear oils contain carefully selected base oils and matched additives to protect machinery from undue wear in especially critical boundary friction conditions. RENOLIN CKC products can be classified as CKC lubricating oils according to ISO 6743-6.
The special characteristics of RENOLIN CKC series lubricants are:
High pressure absorption and excellent wear protection
Good viscosity-temperature behaviour and excellent low-temperature characteristics
Good corrosion protection for steel and nonferrous metals
Good resistance to ageing
Good compatibility with sealing materials
Low foaming
Avoidance of frictional vibration by the use of surface-active additives
Good demulsification characteristics
Multipurpose applications
Application:
RENOLIN CKC series oils are recommended for all industrial applications where the machinery manufacturer recommends the use of a CKC type oil. Highly-stressed bearings, joints, pressure spindles, spur and worm drive gears are reliably, effectively and economically lubricated at temperatures of up to 120°C. The use of these oils guarantees the quiet and smooth running of machinery along with optimum operational reliability. The use of these oils also allows drain intervals to be extended. Please consult our Application Engineers for suggestions on how this series of oils can be used to rationalize oil stocks.
RENOLIN CKC
100
150
220
320
460
680
Lubricating oil type
acc. to ISO 6743-6
CKC 100
CKC 150
CKC 220
CKC 320
CKC 460
CKC 680
acc. to DIN 51 502
CLP 100
CLP 150
CLP 220
CLP 320
CLP 460
CLP 680
Characteristics
Unit
Test method
Colour
2
3
4
4.5
5
5
ASTM D 1500
Kinematic viscosity
at 40 °C
mm²/s
94.4
145.6
214
331
468
690
ASTM D 445
at 100 °C
mm²/s
11.1
14.5
18.5
24.6
30.8
36.8
ASTM D 445
Viscosity index
102
98
96
96
95
87
ASTM D 2270
Density at 15 °C
kg/l
0.884
0.89
0.895
0.9
0.903
0.922
ASTM D 1298
Flash point, Cleveland open cup
°C
220
225
230
230
240
245
ASTM D 92
Pour point
°C
– 27
- 24
- 21
- 15
– 12
– 12
ASTM D 97
Neutralization number
mg KOH/g
0.33
0.33
0.33
0.33
0.33
0.33
ASTM D 974
Saponification number
mg KOH/g
1.3
0.84
0.84
0.84
0.84
0.84
ASTM D 94
Sulphate ash
% mass
0.1
0.1
0.1
0.1
0.1
0.1
ASTM D 874
Water content
% mass
not traceable
not traceable
not traceable
not traceable
not traceable
not traceable
ASTM D 95
Insolubles
% mass
not traceable
not traceable
not traceable
not traceable
not traceable
not traceable
DIN 51 592
Demulsification
min
< 20
< 20
< 20
< 20
< 20
< 20
DIN 51 599
Foaming,
seq. I
ml
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
ASTM D 892 seq. I-III
seq. II
ml
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
ASTM D 892 seq. I-III
seq. III
ml
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
< 10/0
ASTM D 892 seq. I-III
Copper corrosion
degree of corr.
1a-100A3
1a-100A3
1a-100A3
1a-100A3
1a-100A3
1a-100A3
ASTM D 130
Rust prevention
pass B
pass B
pass B
pass B
pass B
pass B
ASTM D 665
Ageing behavior,
viscosity increase
%
1
1
1
1
1
1
ASTM D 2893
precipitation number increase
ml
< 0.05
< 0.05
< 0.05
< 0.05
< 0.05
< 0.05
ASTM D 2893
FZG mechanical gear rig test
load stage
12
12
12
12
12
12
DIN 51 354-2
Effect on SRE-NBR 1 seal material acc to DIN 53 538-1 at 100 °C +/– 1 °C after 7 days +/– 2 hours,
