NSK HR31318J bearings
HR31318J, NSK, Metric series tapered roller bearings
- Measurement system
- Metric
- Bore diameter
- 90.000 mm
- Outside diameter
- 190.000 mm
- Width
- 46.500 mm
- Width, ourter ring
- 30.000 mm
- Width, inner ring
- 43.000 mm
- Cr
- 325000 N
- C0r
- 315000 N
- Limiting speed
- 2400 r/min
- Net weight
- 5.52 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 HR31318J
| Parts Number | HR31318J | |
|---|---|---|
| Brand | NSK | |
| Boundary Dimensions | ||
| d | 90 mm | Bore diameter |
| D | 190 mm | Outside diameter |
| T | 46.5 mm | Total width |
| B | 43 mm | Width of inner ring |
| C | 30 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 | 325000 N | Basic Dynamic Load Rating |
| C0r | 315000 N | Basic Static Load Rating |
| Speeds | ||
| Grease | 1800 min-1 | Grease lubrication |
| Oil | 2400 min-1 | Oil-bath lubrication |
| Dimensions | ||
| a | 58.6 mm | Effective Load Center |
| Abutment and Fillet Dimensions | ||
| da min. | 118 mm | Diameter of shaft abutment |
| Db min. | 179 mm | Diameter of housing abutment |
| Da min. | 152 mm | Diameter of housing abutment |
| Da max. | 176 mm | Diameter of housing abutment |
| Sa | 6 mm | Minimum width of space required in housing on large side face |
| Sb | 16.5 mm | Minimum width of space required in housing on small side face |
| db max. | 110 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 | 5.52 kg (approx.) | |
HR31318J, NSK, Tapered roller bearings, Bore diameter: 90 mm; Outside diameter 190 mm; Total Width 46.5 mm.
NSK HR31318J, 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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