NNU4988 KOYO Double-row cylindrical roller bearings
| Brand Name: | KOYO |
| Model Number: | NNU4988 |
| d: | 2.0000 in |
| radial dynamic load capacity:: | 9752 lb |
| D: | 3.9370 in |
| bearing material:: | 52100/Black Oxide |
| outer ring width:: | 1.1875 in |
| cage material:: | Brass |
| inner ring width:: | 2.1875 in |
| finish/coating:: | Black Oxide |
Product Details
| d | 2.0000 in |
| radial dynamic load capacity: | 9752 lb |
| D | 3.9370 in |
| bearing material: | 52100/Black Oxide |
| outer ring width: | 1.1875 in |
| cage material: | Brass |
| inner ring width: | 2.1875 in |
| finish/coating: | Black Oxide |
| bore type: | Round |
| seal type: | Felt |
| locking device: | Set Screw Collar |
| expansion type: | Non-Expansion Bearing (Fixed) |
| duty type: | Standard Duty |
| series: | ER |
| B | 2.1875 in |
| manufacturer catalog number: | 705090 |
| operating temperature range: | 250° |