| Material: | NdFeB, Grade N52 |
| Dimensions: | 1" od x 5/16" id x 1/4" thick |
| Magnetization Direction: | Axial (Poles on Flat Ends) |
| Plating/Coating: | Black Rubber Coated |
| Tolerances: | ±0.020" x ±0.020" x ±0.020" |
| Weight: | 0.485 oz. (13.8 g) |
| Pull Force | 11.1 lbs |
| Max Operating Temp: | 176ºF (80ºC) |
| Brmax: | 14800 Gauss |
| BHmax: | 52 MGOe |
1" od x 5/16" id x 1/4" thi (D25.4xd7.9x6.3mm) is a popular size for rubber coated neodymium ring magnet that with straight hole. Rubber coating is recommended to limit slipping on smooth surfaces.You’re welcomed to order ring-shape rubber coated neodymium magnets at cheap price.