Description
Technical Parameters
Products Description
Deep groove ball bearings are one of the most common and widely used rolling bearings, widely used in various mechanical equipment due to their simple structure, strong load-bearing capacity, low friction coefficient, high speed, and easy maintenance.
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Warehouse
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Technical Parameters
Size
| d | 70 mm | Aperture |
|---|---|---|
| tΔdmp | -0.012 – 0 mm | Mid-range bore diameter deviation limits |
| D | 150 mm | Outer diameter |
| tΔDmp | -0.015 – 0 mm | Deviation limits of mid-range outside diameter |
| B | 35 mm | Width |
| tΔBs | -0.1 – 0 mm | Deviation limits of ring width |
| d1 | ≈94.95 mm | Flange diameter |
| D2 | ≈129.9 mm | 槽 diameter |
| r1,2 | min.2.1 mm | Chamfer size |
P6 and tighter width tolerance | ISO tolerance class for dimensions |
Shoulder width
| da | min.82 mm | Shoulder diameter of the shaft stop |
|---|---|---|
| Da | max.138 mm | Bearing housing shoulder diameter |
| rea | max.2 mm | Shaft or bearing housing fillet radius |
Data calculation
SKF Performance Grades
SKF Explorer
Basic rated dynamic load C 111 kN
Basic rated static load C0 68 kN
Fatigue load limit Pu 2.75 kN
Reference speed
9 500 rpm
Extreme rotation speed
6 300 revolutions per minute
Minimum load factor kr 0.03
Calculate the coefficient f0 13.2
Run-out tolerances
Range of section height at inner ring of assembled bearing tKia 20 µm
Range of section height at outer ring of assembled bearing tKea 40 µm
ISO tolerance class for geometrical tolerances
Normal
Data calculation
| SKF Performance Grades | SKF Explorer | |
| Basic rated dynamic load | C | 111 kN |
| Basic rated static load | C0 | 68 kN |
| Fatigue load limit | Pu | 2.75 kN |
| Reference speed | 9 500 rpm | |
| Extreme rotation speed | 6 300 revolutions per minute | |
| Minimum load factor | kr | 0.03 |
| Calculate the coefficient | f0 | 13.2 |
Run-out tolerances
| Range of section height at inner ring of assembled bearing | tKia | 20 µm |
|---|---|---|
| Range of section height at outer ring of assembled bearing | tKea | 40 µm |
| ISO tolerance class for geometrical tolerances | Normal |
Tolerance and play
Bearing parameters
Tolerance：Standard (metric)、P6、P5、Standard (imperial)
Radial internal clearance： Group C2 to C5
Bearing fit
Tolerance of shaft position for standard condition
Tolerance and fit
