NSK HR30228J bearings
HR30228J, NSK, Metric series tapered roller bearings
- Measurement system
- Metric
- Bore diameter
- 140.000 mm
- Outside diameter
- 250.000 mm
- Width
- 45.750 mm
- Width, ourter ring
- 36.000 mm
- Width, inner ring
- 42.000 mm
- Cr
- 480000 N
- C0r
- 515000 N
- Limiting speed
- 1900 r/min
- Net weight
- 8.74 kg
- Number of rows
- 1
- Sealing
- Without
- Cage
- Steel sheet metal
- Bearing material
- Steel
- Rolling material
- Steel
- Tolerance class
- Normal (PN)
- Lubricant in bearing
- None
- Relubrication feature
- Without
In stock
Technical specification for NSK HR30228J
| Parts Number | HR30228J | |
|---|---|---|
| Brand | NSK | |
| Boundary Dimensions | ||
| d | 140 mm | Bore diameter |
| D | 250 mm | Outside diameter |
| T | 45.75 mm | Total width |
| B | 42 mm | Width of inner ring |
| C | 36 mm | Width of outer ring |
| Cup r min. | 3 mm | Chamfer dimension of outer ring (Cup) |
| Cone r min. | 4 mm | Chamfer dimension of inner ring (Cone) |
| Basic Load Ratings | ||
| Cr | 480000 N | Basic Dynamic Load Rating |
| C0r | 515000 N | Basic Static Load Rating |
| Speeds | ||
| Grease | 1400 min-1 | Grease lubrication |
| Oil | 1900 min-1 | Oil-bath lubrication |
| Dimensions | ||
| a | 48.9 mm | Effective Load Center |
| Abutment and Fillet Dimensions | ||
| da min. | 161 mm | Diameter of shaft abutment |
| Db min. | 234 mm | Diameter of housing abutment |
| Da min. | 221 mm | Diameter of housing abutment |
| Da max. | 236 mm | Diameter of housing abutment |
| Sa | 7 mm | Minimum width of space required in housing on large side face |
| Sb | 9.5 mm | Minimum width of space required in housing on small side face |
| db max. | 164 mm | Diameter of shaft abutment |
| ra max. | 3 mm | Radius of shaft or housing fillet of inner ring |
| ra max. | 2.5 mm | Radius of shaft or housing fillet of outer ring |
| Mass | ||
| Weight | 8.74 kg (approx.) | |
HR30228J, NSK, Tapered roller bearings, Bore diameter: 140 mm; Outside diameter 250 mm; Total Width 45.75 mm.
NSK HR30228J, Tapered roller bearings are designed so the apices of the cones formed by the race ways of the cone and cup and the conical rollers all coincide at one point on the axis of the bearing. When a radial load is imposed, an axial force component occurs; therefore, it is necessary to use two bearings in opposition or some other multiple arrangement.
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