Page 247 - Rollingbearings
P. 247
Designs and variants
Table 2
1
SKF standard greases for capped single row deep groove ball bearings made of carbon chromium steel
Bearings in SKF standard greases in bearings with outside diameter
diameter series
D ≤ 30 mm 30 < D ≤ 62 mm D > 62 mm
d < 10 mm d ≥ 10 mm
8, 9 LHT23 LT10 MT47 MT33
0, 1, 2, 3 MT47 MT47 MT47 MT33
Table 3
Technical speciications of SKF standard and special greases for capped deep groove ball bearings
Grease Temperature range 1) Thickener Base NLGI Base oil viscosity [mm 2 /s] Grease
oil type grade at 40 °C at 100 °C performance
(105 °F) (210 °F) factor
–50 0 50 100 150 200 250 °C (GPF)
MT33 Lithium Mineral 3 100 10 1
soap
MT47 Lithium Mineral 2 70 7,3 1
soap
LT10 Lithium Diester 2 12 3,3 2
soap
LHT23 Lithium Ester 2–3 27 5,1 2
soap
LT Lithium Diester 2 15 3,7 1
soap
WT Polyurea Ester 2–3 70 9,4 4
GJN Polyurea Mineral 2 115 12,2 2
HT Polyurea Mineral 2–3 96 10,5 2
VT378 Aluminium PAO 2 150 15,5 – 2)
complex
soap
GFJ Aluminium Synthetic 2 100 14 1
complex hydro-
soap carbon
GE2 Lithium Synthetic 2 25 4,9 2
soap
–60 30 120 210 300 390 480 °F
1) Refer to the SKF trafic light concept (page 117)
2) For bearings illed with VT378 grease, use the scale corresponding to GPF = 1 and multiply the value obtained from diagram 1, page 246, by 0,2
245