Material
The bearing’s inner and outer rings, along with the rolling elements, are constructed from high-grade 52100 chromium steel. This material offers excellent hardness, wear resistance, and structural stability, ensuring durability under continuous operation. The 2RS seals are made of nitrile rubber (NBR), which provides good elasticity, oil resistance, and water tightness to effectively seal the bearing interior.
Characteristics
1. Effective sealing: The rubber seals form a flexible barrier against water splashes, dust, and small debris, making it suitable for use in damp or dusty settings such as workshops or outdoor equipment.
2. Low noise operation: The damping effect of the rubber seals reduces vibration and friction-generated noise, ideal for devices used in noise-sensitive environments like offices or homes.
3. Lubrication retention: The seals tightly lock in pre-applied lubricant, minimizing the need for frequent re-lubrication and extending the bearing’s service life in hard-to-maintain assemblies.
4. Compact and versatile: With a small form factor, it fits easily into space-constrained equipment while supporting light to moderate radial loads.
Applications
1. Small power tools: Such as mini drills, sanders, and grinders, where protection against dust and debris from work surfaces is essential.
2. Household appliances: Including blenders, food processors, and air purifiers, leveraging its low noise and moisture resistance.
3. Automotive accessories: Like windshield wiper motors, small fans, and seat adjustment mechanisms, benefiting from its sealing capabilities.
4. Medical devices: Such as portable suction pumps and small diagnostic equipment, where reliability and contamination resistance are critical.
| Part Number | 683 2RS |
| Characteristics |
| System of Measurement | Metric |
| Bearing Type | Ball |
| Seal Type | Sealed |
| Inner Ring Type | Standard |
| For Load Direction | Radial |
| Construction | Single Row |
| Ball Qty | 8 |
| Tolerance Class | ABEC1 |
| Dimensions |
| Bore Dia | 3 mm |
| Bore Dia Tolerance | -0.008mm to 0 |
| Outer Dia | 7 mm |
| Outer Dia Tolerance | -0.008mm to 0 |
| Width | 3 mm |
| Width Tolerance | -0.12mm to 0 |
| Ball Dia | 1 mm |
| Radial Clearance | 0.005mm to 0.01 mm |
| Radial Clearance Trade No | MC3 |
| Material |
| Ring Material | Chrome Steel |
| Ball Material | Chrome Steel |
| Cage Material | Carbon Steel |
| Shield Material | Nitrile Rubber |
| Performance |
| Dynamic Radial Load | 59 lbf |
| Static Radial Load | 20 lbf |
| Max Speed (X1000 rpm) | 63 |
| Temperature Range | -30° to 110 °C |
| Properties |
| Lubrication | Required |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.45 g |
