| Product Number | SMR84ZZ 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 | 8 mm | 
| outer diameter tolerance | -0.008mm to 0 | 
| width | 3 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 | 67.95 lbf | 
| static radial load | 22.95 lbf | 
| Maximum speed | 50.4 | 
| 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 | 1.2000 mm | 
| number of balls | 7 | 
| weight | 0.56g | 
| NMB | DDL-840ZZ | 
| GRW | |
| McMaster-Carr ABEC5 | |
| NHBB | SSL-840ZZ | 
| EZO | SMR84ZZ | 
| McMaster-Carr ABEC7 | |
| DYNAROLL | SMR84ZZ | 
| FAG | |
| RMB | |
| MPB | |
| LOTTON | SMR84ZZ | 
| McMaster-Carr ABEC1 | |
| BARDEN | |
| McMaster-Carr ABEC3 | 
						| LOTTON | DYNAROLL  | EZO  | NMB | NHBB  | 
SMR84ZZ  | SMR84ZZ  | SMR84ZZ  | DDL-840ZZ  | SSL-840ZZ  |