NSK HR30311DJ bearings
HR30311DJ, NSK, Metric series tapered roller bearings
- Measurement system
- Metric
- Bore diameter
- 55.000 mm
- Outside diameter
- 120.000 mm
- Width
- 31.500 mm
- Width, ourter ring
- 21.000 mm
- Width, inner ring
- 29.000 mm
- Cr
- 161000 N
- C0r
- 153000 N
- Limiting speed
- 4000 r/min
- Net weight
- 1.58 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 HR30311DJ
| Parts Number | HR30311DJ | |
|---|---|---|
| Brand | NSK | |
| Boundary Dimensions | ||
| d | 55 mm | Bore diameter |
| D | 120 mm | Outside diameter |
| T | 31.5 mm | Total width |
| B | 29 mm | Width of inner ring |
| C | 21 mm | Width of outer ring |
| Cup r min. | 2 mm | Chamfer dimension of outer ring (Cup) |
| Cone r min. | 2.5 mm | Chamfer dimension of inner ring (Cone) |
| Basic Load Ratings | ||
| Cr | 161000 N | Basic Dynamic Load Rating |
| C0r | 153000 N | Basic Static Load Rating |
| Speeds | ||
| Grease | 2800 min-1 | Grease lubrication |
| Oil | 4000 min-1 | Oil-bath lubrication |
| Dimensions | ||
| a | 37 mm | Effective Load Center |
| Abutment and Fillet Dimensions | ||
| da min. | 75 mm | Diameter of shaft abutment |
| Db min. | 114 mm | Diameter of housing abutment |
| Da min. | 94 mm | Diameter of housing abutment |
| Da max. | 110 mm | Diameter of housing abutment |
| Sa | 4 mm | Minimum width of space required in housing on large side face |
| Sb | 10.5 mm | Minimum width of space required in housing on small side face |
| db max. | 67 mm | Diameter of shaft abutment |
| ra max. | 2 mm | Radius of shaft or housing fillet of inner ring |
| ra max. | 2 mm | Radius of shaft or housing fillet of outer ring |
| Mass | ||
| Weight | 1.58 kg (approx.) | |
HR30311DJ, NSK, Tapered roller bearings, Bore diameter: 55 mm; Outside diameter 120 mm; Total Width 31.5 mm.
NSK HR30311DJ, 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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