| Category | Precision Ball Bearings |
| Inventory | 5.0 |
| Minimum Buy Quantity | N/A |
| Weight | 0.763 |
| Product Group | B04270 |
| Enclosure | Open |
| Precision Class | ABEC 7 | ISO P4 |
| Material - Ball | Steel |
| Number of Bearings | 2 (1 Pair) |
| Contact Angle | 60 Degree |
| Preload | Heavy |
| Raceway Style | 1 Rib Inner Ring and Outer Ring |
| Cage Material | Phenolic |
| Rolling Element | Ball Bearing |
| Mounting Arrangement | Duplex-Universal |
| Flush Ground | Yes |
| Inch - Metric | Metric |
| Other Features | Single Row | Angular Contact | Ball Screw Support | Super Precision | With Tighter Lateral Eccentricity |
| Long Description | 55MM Bore; 90MM Outside Diameter; 30MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 2 (1 Pair) Bearings; 60 Degree Contact Angle; Phenolic Cage Material; 1 Rib Inner Ring and |
| UNSPSC | 31171531 |
| Harmonized Tariff Code | 8482.10.50.28 |
| Noun | Bearing |
| Keyword String | Angular Contact Ball |
| Manufacturer Item Number | MM55BS90 DUH |
| Weight / LBS | 1.68 |
| d | 2.165 Inch | 55 Millimeter |
| B | 1.181 Inch | 30 Millimeter |
| D | 3.543 Inch | 90 Millimeter |
