| Product Number | S681 Bearing |
| metering system | Metric system |
| Bearing type | ball |
| load direction | Radial |
| structure | single row |
| Inner ring type | Standard type |
| Seal type | open |
| inside diameter | 1 mm |
| Inner diameter tolerance | -0.008mm to 0 |
| outer diameter | 3 mm |
| outer diameter tolerance | -0.008mm to 0 |
| width | 1 mm |
| Width Tolerance | -0.12mm to 0 |
| ferrule material | 440C stainless steel |
| ball material | 440C stainless steel |
| cage material | 300 series stainless steel |
| dynamic radial load | 16.65 lbf |
| static radial load | 4.275 lbf |
| Maximum speed | 117 |
| lubricant | Lubricated |
| installation method | push-in |
| temperature range | -30° to 110°C |
| ABEC grade | ABEC1 (ABEC3/5/7 optional) |
| Radial clearance class | MC3 (available in MC1/2/4/5/6) |
| Clearance range | 0.002mm to 0.013mm |
| RoHS | conform to |
| REACH | conform to |
| Ball diameter | 0.6000 mm |
| number of balls | 6 |
| weight | 0.03g |
| NMB | DDL-310 |
| GRW | |
| McMaster-Carr ABEC5 | |
| NHBB | SSL-310 |
| EZO | 681h |
| McMaster-Carr ABEC7 | |
| DYNAROLL | 681h |
| FAG | |
| RMB | |
| MPB | |
| LOTTON | S681 |
| McMaster-Carr ABEC1 | 7487N11 |
| BARDEN | |
| McMaster-Carr ABEC3 |
| LOTTON | DYNAROLL | EZO | NMB | NHBB | McMaster-Carr |
| S681 | 681h | 681h | DDL-310 | SSL-310 | 7487N11 |
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