SKF Bearing Select v1.
0-14
Bearing Life
Akshath
Hical
July 22, 2019
SKF Bearing Select 1
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
1. Abstract
Bearing designation 6206-2RSH 6205-2RSH
Deep groove ball Deep groove ball
Bearing type
bearing bearing
Basic rating life ( L10h ) 0.0 h
SKF life ( L10mh or L10GMh )* 0.0 h
Static safety factor ( S0 ) 0.0149 0.0104
Total frictional moment 370000 387000 Nmm
Power loss 329957 345282 W
Minimum load met yes yes
Minimum radial load 0.19 0.13 kN
* SKF rating life ( L10mh ) for steel-steel bearings; GBLM load based life ( L10GMh ) for hybrid bearings
Errors: (Both)
! invalid grease life or relubrication interval calculation: The C/P value is too low. Calculation result is invalid.
Errors: (Left)
! rotational speed should be less than limiting speed
SKF Bearing Select 2 2019-07-22
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
2. Input
2.1. Bearing data
Bearing designation 6206-2RSH 6205-2RSH
Deep groove ball Deep groove ball
Bearing type
bearing bearing
Bearing execution SKF Explorer SKF Explorer
Popular item Yes Yes
Bore diameter ( d ) 30 25 mm
Outer diameter ( D ) 62 52 mm
Bearing width ( B ) 16 15 mm
Basic dynamic load rating ( C ) 20.3 14.8 kN
Basic static load rating ( C0 ) 11.2 7.8 kN
Fatigue load limit ( Pu ) 0.475 0.335 kN
Limiting speed 7500 8500 r/min
Clearance class Normal Normal
SKF Bearing Select 3 2019-07-22
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
2.2. Loads & speed
Load Coordinate system X|r Y|θ Z Fx | ( Fr ) Fy | Fθ Fz
mm mm | deg mm kN kN kN
F1 Cartesian 0.0 0.0 63.2 0.0 -1500.0 0.0
Locating bearing None (axial load ignored)
Shaft orientation Horizontal
Bearing distance 126 mm
Rotating ring inner ring rotation
Rotational speed 8500 r/min
2.3. Lubrication
Bearing designation 6206-2RSH 6205-2RSH
Lubricant name MT33 MT33
Viscosity at 40°C 100 100 mm²/s
Viscosity at 100°C 10 10 mm²/s
Contamination method Detailed guidelines Detailed guidelines
Contamination level Normal cleanliness Normal cleanliness
Lubricant with effective EP additives No No
2.4. Temperatures
Bearing designation 6206-2RSH 6205-2RSH
Shaft / inner ring 70 70 °C
Outer ring / housing 65 65 °C
- Maximum temperature is used for calculating the actual viscosity, kappa, aSKF and SKF rating life.
- Mean temperature is used for calculating bearing friction and power loss.
SKF Bearing Select 4 2019-07-22
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
3. Results
3.1. Bearing loads
Bearing designation 6206-2RSH 6205-2RSH
Equivalent dynamic bearing load ( P ) 750.0 750.0 kN
Load ratio ( C/P ) 0.03 0.02
Radial load ( Fr ) 750 750 kN
Axial load ( Fa ) 0 0 kN
3.2. Static safety factor
Bearing designation 6206-2RSH 6205-2RSH
Equivalent static load ( P0 ) 750 750 kN
Static safety factor ( S0 ) 0.0149 0.0104
3.3. Bearing minimum load
Bearing designation 6206-2RSH 6205-2RSH
Minimum radial load 0.19 0.13 kN
Minimum load met yes yes
3.4. Lubrication conditions
Bearing designation 6206-2RSH 6205-2RSH
Actual viscosity ( ν ) 25.3 25.3 mm²/s
Rated viscosity ( ν1 ) 6.35 6.83 mm²/s
Viscosity ratio ( κ ) 3.99 3.71
3.5. Grease life and relubrication interval
Errors: (Both)
! invalid grease life or relubrication interval calculation: The C/P value is too low. Calculation result is invalid.
SKF Bearing Select 5 2019-07-22
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
3.6. Bearing rating life
Bearing designation 6206-2RSH 6205-2RSH
Contamination factor ( ηc ) 0.53
Life modification factor ( aSKF ) 0.16
Basic rating life ( L10h ) 0.0 h
SKF life ( L10mh or L10GMh )* 0.0 h
* SKF rating life ( L10mh ) for steel-steel bearings; GBLM load based life ( L10GMh ) for hybrid bearings
Errors: (Left)
! rotational speed should be less than limiting speed
3.7. Bearing friction & power loss
Bearing designation 6206-2RSH 6205-2RSH
Total frictional moment 370000 387000 Nmm
Starting frictional moment 1100000 1160000 Nmm
Rolling friction 1080 815 Nmm
Sliding friction 369000 387000 Nmm
Seal friction 96.4 81.9 Nmm
Drag loss friction 0 0 Nmm
Power loss 329957 345282 W
SKF Bearing Select 6 2019-07-22
This report was produced with SKF Bearing Select software. Please note the limited warranty, shown at the bottom of the last page of this report
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
3.8. Bearing frequencies
Bearing designation 6206-2RSH 6205-2RSH
Rotational frequency of inner ring 141 141 Hz
Rotational frequency of outer ring 0 0 Hz
Rotational frequency of rolling element set and cage 56.1 56.4 Hz
Rotational frequency of rolling element around its own
327 333 Hz
axis
Over-rolling frequency of one point on inner ring 769 767 Hz
Over-rolling frequency of one point on outer ring 505 507 Hz
Over-rolling frequency of one point on a rolling element 654 667 Hz
SKF Bearing Select 7 2019-07-22
LIMITED WARRANTY : The SKF Bearing Select software tool of the SKF Company supports the calculation and selection of bearings.
This software is provided 'as is' with out any warranty of any sort, implicitly as well as explicitly.
Please note that the obtained results can be affected by many external parameters and/or the quality of the assumptions taken into account.
The results obtained using this software must be validated by the user who accepts the fact that the use of this software and the exploitation
of the obtained results are under the user's entire and sole responsibility.
® SKF is a registered trademark of the SKF Group. © SKF Group 2019.
