Description
SKF 6204-2RS1 / 6204-2RS Deep Groove Ball Bearing (GOST: 180204)
The SKF 6204-2RS1 precision single-row deep groove ball bearing (often designated as 6204-2RS in everyday use and price lists) from the premium Swedish brand SKF is one of the most common and reliable bearings in the world. It is equipped with double-sided contact rubber-to-metal seals (2RS1) that hermetically retain grease inside and protect the raceways from water, dust, dirt, and abrasive particles.
What is the difference between the 6204-2RS1 and 6204-2RS markings?
For the buyer, this is the same bearing (dimensions 20x47x14 mm):
- 6204-2RS1: Official factory marking of the Swedish SKF group. The "RS1" suffix denotes a proprietary contact seal made of synthetic rubber (NBR) with steel reinforcement.
- 6204-2RS: General industrial designation for bearings with rubber seals. Customers and technicians often search for it using this short name.
Key Advantages and Features:
- Maximum protection against moisture and dirt (2RS1): Contact rubber seals fit tightly against the inner ring, allowing the bearing to be used in wet environments (e.g., in washing machines or automotive alternators).
- Factory-filled with grease: Filled with high-quality SKF grease for its entire service life. No additional lubrication is required during installation.
- Low noise and vibration levels: Perfect grinding of the raceways and balls reduces friction, minimizes heat generation, and ensures smooth, trouble-free operation.
Compatibility and Applications:
- Washing machines (drum): One of the most common applications — drums of washing machines by Indesit, Ariston, LG, Samsung, Bosch, Candy, Whirlpool, Beko (usually paired with 6205 or 6203 and an oil seal).
- Automobiles and motor vehicles: Alternators (VAZ, GAZ, foreign cars), tensioner pulleys, hubs, water pumps, as well as gearboxes and wheel hubs for motorcycles and scooters.
- Power tools and garden equipment: High-power angle grinders, circular saws, lawnmowers, tillers, and cultivators.
- Industry: Electric motors, fans, conveyors, pumps, and gearboxes.
Technical Specifications:
| Parameter | Value / Specification |
|---|---|
| Brand / Manufacturer | SKF (Sweden / EU) |
| OEM Marking (SKF) | 6204-2RS1 (equivalent to 6204-2RSH) |
| Equivalent Designations | 6204 2RS, 6204 LLU, 6204 DDU, 6204-2RSR |
| GOST Designation | 180204 (deep groove, sealed on both sides) |
| Inner Diameter (d) | 20 mm |
| Outer Diameter (D) | 47 mm |
| Width / Height (H / B) | 14 mm |
| Seal Type | 2RS1 (double-sided rubber-to-metal contact seals) |
| Radial Internal Clearance | Normal (standard CN clearance)
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