Selection of rolling bearing oil

The spindle bearing lubricating oil using the rolling bearing is generally considered in consideration of the product of the inner diameter d of the bearing and the spindle rotational speed n, that is, the speed factor dn, the bearing operating temperature T, and the bearing P subjected to the bearing.

The selection of the recommended lubricant grade for rolling bearings is given below. Lubricating oils can be selected from FC or FD bearing oil, HL hydraulic oil, TSA turbine oil, DAD compressor oil, gasoline engine oil or cylinder oil, depending on product type, working condition and viscosity grade.

1. Bearing working temperature -30-0 °C, normal load (3MPa) Applicable oil viscosity (40 °C) 18-32mm2 / s, viscosity grade 22, 32; heavy load or impact load (3MPa-20MPa) applicable oil viscosity (40 °C) 18-50mm2/s, viscosity grade 32, 46.

2. Bearing working temperature 0-60 ° C, speed factor (dn value) 15000mm.r / min or less, normal load applicable oil viscosity (40 ° C) 32-70mm2 / s, viscosity grade 32, 46, 68, heavy load or impact Load (3MPa-20MPa) Applicable oil viscosity (40°C) 70-192mm2/s, viscosity grade 68, 100, 150; speed factor (dn value) 15000-75000mm.r/min, common load applicable oil viscosity (40°C) 32-50mm2/s, viscosity grade 32, 46, heavy load or impact load (3MPa-20MPa) applicable oil viscosity (40 °C) 42-90mm2 / s, viscosity grade 46, 68, 100; speed factor (dn value) 75000 -150000mm.r/min, general load applicable oil viscosity (40 °C) 15-32mm2 / s, viscosity grade 15, 32, heavy load or impact load (3MPa-20MPa) applicable oil viscosity (40 ° C) 32-42mm2 / s , viscosity grade 32; speed factor (dn value) 150000-300000mm.r/min, common load applicable oil viscosity (40 ° C) 9-12mm2 / s, viscosity grade 5, 7, 10, heavy load or impact load (3MPa- 20MPa) Applicable oil viscosity (40 ° C) 18-32mm2 / s, viscosity grade 15.

3. Bearing working temperature 60-100 ° C, speed factor (dn value) 15000mm.r / min or less, common load applicable oil viscosity 40 ° C 110-192mm2 / s (100 ° C9.3-12.5mm2 / s), viscosity grade 150, Heavy load or impact load (3MPa-20MPa) Applicable oil viscosity (40 °C) 195-240mm2 / s (100 ° C15-24mm2 / s), viscosity grade 150; speed factor (dn value) 15000-75000mm.r / min, Ordinary load applicable oil viscosity 40 ° C 70-120mm2 / s (100 ° C 5.6-9.3mm2 / s), viscosity grade 68, 100, heavy or impact load (3MPa-20MPa) applicable oil viscosity (40 ° C) 110-192mm2 / s, viscosity grade 150; speed factor (dn value) 75000-150000mm.r / min, common load applicable oil viscosity 40 ° C 50-90mm2 / s (100 ° C 5.6-9.3mm2 / s), viscosity grade 46, 68, 100 , heavy load or impact load (3MPa-20MPa) applicable oil viscosity (40 ° C) 70-120mm2 / s, viscosity grade 100