| Product Number | S688 Bearing |
| metering system | Metric system |
| Bearing type | ball |
| load direction | Radial |
| structure | single column |
| Inner ring type | Standard type |
| Seal type | open |
| inside diameter | 8 mm |
| Inner diameter tolerance | -0.008mm to 0 |
| outer diameter | 16 mm |
| outer diameter tolerance | -0.008mm to 0 |
| width | 4 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 | 215.55 lbf |
| static radial load | 96.075 lbf |
| Maximum speed | 32.4 |
| 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 | 2.0000mm |
| number of balls | 10 |
| weight | 3.11g |
| NMB | DDL-1680 |
| GRW | |
| McMaster-Carr ABEC5 | |
| NHBB | SSL-1680 |
| EZO | 688h |
| McMaster-Carr ABEC7 | |
| DYNAROLL | 688h |
| FAG | |
| RMB | |
| MPB | |
| LOTTON | S688 |
| McMaster-Carr ABEC1 | 7487N35 |
| BARDEN | |
| McMaster-Carr ABEC3 |
| LOTTON | DYNAROLL | EZO | NMB | NHBB | McMaster-Carr |
| S688 | 688h | 688h | DDL-1680 | SSL-1680 | 7487N35 |
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