Datasheet
Fig. 5
a b c d
Table 1
Technical specifications of SKF standard and special grease for capped stainless deep groove ball bearings
Grease Temperature range
1)
Thickener Base NLGI Base oil Grease
oil type consistency viscosity [mm
2
/s] performance
class at 40 °C at 100 °C factor (GPF)
(105 °F) (210 °F)
LHT23 Lithium soap Esther 2–3 27 5,1 2
2)
GFJ
4)
Aluminium Synthetic 2 100 14 1
2)
complex soap hybercarbon
VT378 Aluminium PAO 2 150 15,5 1
3)
complex soap
1)
For the SKF traffic light concept, please refer to the SKF rolling bearings catalogue
2)
For calculating the grease life of an SKF standard capped stainless steel deep groove ball bearing, please refer to the SKF Interactive Engineering Catalogue
3)
For calculating the grease life of an SKF standard capped stainless steel deep groove ball bearing, please refer to the SKF Interactive Engineering Catalogue (reference grease MT33) and multiply
the grease life obtained by 20%.
4)
GFJ-grease is used in VP311.
–50 0 50 100 150 200 250 °C
0 100 200 300 400 500 °F
–50 50 150 250 350 450
–50 0 50 100 150 200 250 °C
0 100 200 300 400 500 °F
–50 50 150 250 350 450
Cages
The bearings are equipped with a stamped
stainless steel cage as standard. The following
standard cage types can be supplied:
• Ribbon type, ball centred († fig. 5a)
• Riveted, ball centred († fig. 5b)
• Snap type, ball centred († fig. 5c)
Injection moulded, ball centred († fig. 5d)
polymer cages made of fibre reinforced pol-
yamide 66 may also be available. For
additional information about these cages,
contact the SKF engineering service.
Grease
Standard SKF capped stainless steel deep
groove ball bearings are filled with LHT23
under clean conditions. The bearings are
considered maintenance-free for the life of
the bearing. Details of this grease can be
found in table 1. Other lubricating greases
can be supplied on request.
Materials
The rings, balls, cages and shields of SKF
stainless steel bearings are all made from
stainless steel. The bearing rings are pro-
duced from X65Cr13 according to ISO
683-17:2000. The balls are made from
X105CrMo17 while the shields and cages
are made from X5CrNi18-10 in accordance
with EN 10088-1:1995.
11
B