Rollway NU311M bearing Size Chart (mm/inches) |
|---|
| d | 40 mm |
| D | 80 mm |
| B | 18 mm |
| rs min | 1.1 mm |
| Radial clearance class | CN |
| Mass | 0.37 kg |
| Dynamic load, C | 29.1 kN |
| Static load, C0 | 17.8 kN |
| Fatigue limit load, Cu | 0.81 kN |
| f0 | 14 |
| Nlim (oil) | 10,000 rpm |
| Nlim (grease) | 8,700 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.4 Hz |
| Characteristic rolling element frequency, BSF | 4.84 Hz |
| Characteristic outer ring frequency, BPF0 | 3.61 Hz |
| Characteristic inner ring frequency, BPFI | 5.39 Hz |
| da min | 46.5 mm |
| Da max | 73.5 mm |
| ra max | 1 mm |
| Category | Precision Ball Bearings |
| Inventory | 0.0 |
| Manufacturer Name | NTN |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.366 |
| Product Group | B04270 |
| Enclosure | Open |
| Precision Class | ABEC 7 | ISO P4 |
| Material - Ball | Steel |
| Number of Bearings | 1 (Single) |
| Contact Angle | 0 Degree |
| Preload | None |
| Raceway Style | Not Applicable |
| Cage Material | Nylon |
| Rolling Element | Ball Bearing |
| Flush Ground | No |
| Inch - Metric | Metric |
| Other Features | Single Row | Deep Groove |
| Long Description | 40MM Bore; 80MM Outside Diameter; 18MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 1 (Single) Bearing; 0 Degree Contact Angle; Nylon Cage Material; Ball Bearing |
| Category | Precision Ball Bearings |
| UNSPSC | 31171502 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball Deep Groove |
| Manufacturer URL | http://www.ntnamerica.com |
| Width | 0.709 Inch | 18 Millimeter |
| Bore | 1.575 Inch | 40 Millimeter |
| Outside Diameter | 3.15 Inch | 80 Millimeter |