7221CT1B, Single Angular Contact Ball Bearings - Open Type
| Bearing number: | NNU 4948 BK/SPW33 |
| Size (mm): | 240x320x80 |
| Bore Diameter (mm): | 240 |
| Outer Diameter (mm): | 320 |
| Width (mm): | 80 |
| d: | 240 mm |
| D: | 320 mm |
| B: | 80 mm |
Product Details
| Bearing number | NNU 4948 BK/SPW33 |
| Size (mm) | 240x320x80 |
| Bore Diameter (mm) | 240 |
| Outer Diameter (mm) | 320 |
| Width (mm) | 80 |
| d | 240 mm |
| D | 320 mm |
| B | 80 mm |
| D1 | 292.2 mm |
| F | 265.3 mm |
| b | 11.1 mm |
| K | 3 mm |
| r1,2 - min. | 2.1 mm |
| r3,4 - min. | 1.1 mm |
| s | 3.7 mm |
| da - min. | 251 mm |
| da - max. | 262 mm |
| Da - max. | 309 mm |
| ra - max. | 2 mm |
| dn | 267 mm |
| Basic dynamic load rating - C | 528 kN |
| Basic static load rating - C0 | 1220 kN |
| Fatigue load limit - Pu | 118 kN |
| Limiting speed for grease lubrication | 2200 r/min |
| Limiting speed for oil lubrication | 2600 mm/min |
| Gref | 171 cm |
| Category | Cylindrical Roller Bearing |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 17.886 |
| Product Group | B04270 |
| Bore Profile | Tapered |
| Cage Material | Brass |
| Precision Class | Special Precision |
| Number of Rows of Rollers | Double Row |
| Separable | Inner Ring - Both Sides |
| Rolling Element | Cylindrical Roller Bearing |
| Profile | Complete with Outer and Inner Ring |
| Snap Ring | No |
| Internal Clearance | C1-Tight |
| Retainer | Yes |
| Relubricatable | Yes |
| Inch - Metric | Metric |
| Other Features | Plain Inner Ring | 3 Rib Outer Ring | High Precision Bearing | Modified Internal Design | Cage on Outer Ring ID |
| Long Description | 240MM Bore; Tapered Bore Profile; 320MM Outside Diameter; 80MM Width; Brass Cage Matetrial; Special Precision; Double Row; Inner Ring - Both Sides Separable; No Snap Ring; Relubricatable; C1-Tight Int |
| UNSPSC | 31171547 |
| Harmonized Tariff Code | 8482.50.00.00 |
| Noun | Bearing |
| Manufacturer Item Number | NNU 4948 BK/SPW33 |
| Weight / LBS | 39.397 |
| Bore | 9.449 Inch | 240 Millimeter |
| Outside Diameter | 12.598 Inch | 320 Millimeter |
| Width | 3.15 Inch | 80 Millimeter |
| r1,2 min. | 2.1 mm |
| r3,4 min. | 1.1 mm |
| s max. | 3.7 mm |
| da min. | 251 mm |
| da max. | 262 mm |
| Da max. | 309 mm |
| Basic dynamic load rating C | 528 kN |
| Basic static load rating C0 | 1220 kN |
| Fatigue load limit Pu | 118 kN |
| Attainable speed for grease lubrication | 2200 r/min |
| Attainable speed for oil-air lubrication | 2600 r/min |
| Reference grease quantity Gref | 171 cm³ |
| Static radial stiffness (guideline value) | 6340 N/µm |
| Mass bearing | 17.5 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |
BST60X120-1BLXL, Single Angular Contact Thrust Ball Bearing for Ball Screws - Double Sealed
BST50X100-1BLXL, Single Angular Contact Thrust Ball Bearing for Ball Screws - Double Sealed
BST60X120-1B, Single Angular Contact Thrust Ball Bearing for Ball Screws - Open Type
BST50X100-1B, Single Angular Contact Thrust Ball Bearing for Ball Screws - Open Type
BST55X120-1BLXL, Single Angular Contact Thrust Ball Bearing for Ball Screws - Double Sealed
BST45X75-1BP4, Single Angular Contact Thrust Ball Bearing for Ball Screws - Open Type