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60 Series
Home Deep Groove Ball Bearings 60 Series

608-2RS Deep Groove Ball Bearing | 8×22×7 mm for Electric Motors, Skateboards & Power Tools

608-2RS Deep Groove Ball Bearing | 8×22×7 mm for Electric Motors, Skateboards & Power Tools

The 608-2RS is an incredibly versatile, highly durable deep groove ball bearing recognized globally as the industry standard for a massive variety of applications. Measuring 8mm in bore diameter, 22mm in outer diameter, and 7mm in width, this bearing is engineered to deliver reliable radial load support while excelling in environments prone to contamination. Equipped with twin synthetic rubber seals (2RS) that make physical contact with the inner ring, the 608-2RS expertly locks in premium lubricating grease while locking out moisture, dust, and abrasive particles.

608-2RS Deep Groove Ball Bearing 8x22x7 mm | Standard Series

Manufactured by Welink Bearing to strict international standards, the 608-2RS features an optimized internal geometry designed to maximize load distribution and operational lifespan. Unlike non-contact metal shields, the dual NBR (Nitrile Butadiene Rubber) seals provide a robust, physical barrier against harsh external elements. This makes the 608-2RS the go-to solution for outdoor equipment, household appliances, and continuous-duty rotary machinery where protection from dirt and water ingress is an absolute priority over achieving ultra-high RPMs.

608-2RS Deep Groove Ball Bearing | 8×22×7 mm for Electric Motors, Skateboards & Power Tools

Comprehensive Applications

Because of its ideal size and rugged sealing, the 608-2RS is utilized across a highly diverse range of industries:

Sports & Outdoor Leisure
  • Skateboards, longboards, and inline skates
  • Kick scooters and recreational roller skates
  • Bicycle wheel hubs and pedal assemblies
Power Tools & Home Appliances
  • Washing machine drum motors and agitators
  • Handheld power drills, grinders, and circular saws
  • Vacuum cleaner sweeping brush rollers
  • HVAC blower motors and extractor fans
Industrial & Automation Equipment
  • Light-duty conveyor belt rollers and material handling
  • Automated packaging machinery
  • Agricultural seeding equipment and small tractors
  • Textile manufacturing spinners
3D Printing & CNC Systems
  • Filament spool holders and heavy-duty idler pulleys
  • CNC router linear rail carriages
  • Robotic joint pivot points

Key Performance Features

01. Ultimate Moisture & Debris Protection

The defining feature of the 608-2RS is its heavy-duty contact seals. Made from durable, oil-resistant nitrile rubber reinforced with a steel insert, these seals sit flush against the inner raceway recess. This design virtually eliminates the risk of internal contamination, extending the bearing's lifecycle significantly in dusty, dirty, or damp operating conditions.

02. Unmatched Industry Versatility

The 8x22x7mm dimension is arguably the most standardized bearing size in the world. Our 608-2RS balances this compact footprint with impressive load-bearing capabilities. It is designed to handle primarily radial loads, as well as moderate axial loads in both directions, making it a reliable workhorse for thousands of different mechanical assemblies.

03. High-Carbon GCr15 Chrome Steel

We manufacture our 608-2RS bearings using premium, heat-treated GCr15 chrome steel (AISI 52100). This ensures outstanding surface hardness, exceptional wear resistance, and protection against metal fatigue. Pre-filled with premium multi-purpose lithium grease, the bearing is maintenance-free and ready for immediate installation.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series Standard Metric Series (60 Series)
Basic Designation 608
Suffix 2RS (Dual Rubber Seals)
Bore Diameter (d) 8 mm
Outer Diameter (D) 22 mm
Width (B) 7 mm
Material (Races & Balls) High-Carbon Chrome Steel (GCr15 / AISI 52100)
Precision Class ABEC-1 (ABEC-3 / ABEC-5 Upgrades Available)
Seal Material NBR (Nitrile Butadiene Rubber) over steel insert
Dynamic Load Rating (Cʳ) 3.30 kN
Static Load Rating (C₀ʳ) 1.35 kN
Limiting Speed (Grease) 34,000 r/min
Limiting Speed (Oil) --
Weight (approx.) 0.012 kg (12 g)

Interchange Part Numbers

Seamlessly replaces the following equivalent manufacturer parts:

  • NSK: 608DDU
  • SKF: 608-2RSH / 608-2RS1
  • KOYO: 608-2RS
  • NTN: 608LLU
  • Nachi: 608-2NSE
  • FAG: 608-2RSR / 608-2RS
  • NMB: 608-2RS

Design & Configuration

While the standard 608-2RS features contact rubber seals for maximum protection, Welink Bearing also accommodates specific engineering needs. If your application requires higher operating speeds with less friction, consider our metal-shielded 608-ZZ variant. For corrosive or food-grade environments, we manufacture the stainless steel S608-2RS, and for professional skateboarding or high-heat scenarios, we offer hybrid ceramic options.

"Combining rugged environmental protection with industry-standard reliability, the 608-2RS is the ultimate maintenance-free solution for your rotational needs."

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