Boston Gear NB48A 4 DP 48T Steel Spur Gear
Couldn't load pickup availability
Use this text to encourage communication or promote sharing on social networks.
The Boston Gear NB48A (catalog #10246) is a new steel spur gear belonging to the NB-series, a line of 14.5° full-depth tooth-form steel spur gears with a 4 diametral pitch. The NB designation encodes: N = 14.5° pressure angle, B = 4 DP, 48 = 48 teeth, A = plain bore (unbored / finish-bore-to-order); the 4 DP yields a 12.000 in pitch diameter and a 12.500 in outside diameter. Supplied in a plain (finish) bore condition, the hub requires final boring, keyway cutting, and setscrew drilling to the user's shaft size, making it suitable for custom-fit applications in conveyors, packaging machinery, printing equipment, and general industrial drives. Material is steel (consistent with Boston Gear's NB-series standard), machined to AGMA quality standards for the NB product line, and is sold individually as new-in-box from Boston Gear (a Regal Rexnord brand).
Product Specifications
| Brand | Boston Gear (Regal Rexnord) |
| Part Number (MPN) | NB48A |
| Catalog Number | 10246 |
| Gear Type | Spur Gear |
| Material | Steel |
| Diametral Pitch (DP) | 4 DP |
| Pressure Angle | 14.5° |
| Number of Teeth | 48 teeth |
| Pitch Diameter | 12.000 in |
| Outside Diameter | 12.500 in |
| Bore Type | Plain bore (finish bore to order) |
| Tooth Form | Full depth, 14.5° involute |
| Condition | New |