| Product Number | S684ZZ Bearing |
| metering system | Metric system |
| Bearing type | ball |
| load direction | Radial |
| structure | single column |
| Inner ring type | Standard type |
| Seal type | metal dust cover |
| inside diameter | 4 mm |
| Inner diameter tolerance | -0.008mm to 0 |
| outer diameter | 9 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 | 110.25 lbf |
| static radial load | 36.9 lbf |
| Maximum speed | 47.7 |
| 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 | 1.5880 mm |
| number of balls | 7 |
| weight | 1g |
| NMB | DDL-940ZZ |
| GRW | |
| McMaster-Carr ABEC5 | |
| NHBB | SSL-940ZZ |
| EZO | 684hZZ |
| McMaster-Carr ABEC7 | |
| DYNAROLL | 684hZZ |
| FAG | |
| RMB | |
| MPB | |
| LOTTON | S684ZZ |
| McMaster-Carr ABEC1 | |
| BARDEN | |
| McMaster-Carr ABEC3 |
| LOTTON | DYNAROLL | EZO | NMB | NHBB |
| S684ZZ | 684hZZ | 684hZZ | DDL-940ZZ | SSL-940ZZ |
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