W 61708-2RS1
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61708-2RS1
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.023 kg
Tolerance class
P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
50 mm
Outside diameter tolerance
-0.011mm to 0
Width
6 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
321 lbf
Radial static load rating
286 lbf
Limiting speed
7.5 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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W 61708-2RS1 Bearing Product Overview & Core Advantages
The W 61708-2RS1 is a single row deep groove ball bearing designed for compact applications requiring high reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its sealed design (2RS1) and pre-lubrication, making it a maintenance-free solution ideal for applications where re-lubrication is difficult. This bearing is engineered to primarily handle radial loads and is characterized by its low friction and smooth operation.
W 61708-2RS1 Bearing Model Code Explained, Specifications & Naming Convention
The model number W 61708-2RS1 can be broken down as follows:
- W: Bearing series, indicating a specific design and dimension set.
- 61708: The basic bearing designation. "61" often denotes a deep groove design with an extremely low cross-section. "708" defines the specific bore and outside diameter dimensions.
- 2RS1: This suffix is critical. "2" means two (2) seals. "RS1" specifies contact-type rubber seals on both sides, providing effective protection against contaminants and retaining grease.
W 61708-2RS1 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a width of only 6 mm and a weight of just 0.023 kg, this bearing is ideal for space-constrained and weight-sensitive applications.
- Superior Sealing: The double-sided contact seals (2RS1) effectively shield the internal components from dust, moisture, and other contaminants, significantly extending bearing service life.
- Maintenance-Free Operation: Pre-lubricated with grease, the bearing is ready for immediate use and does not require re-lubrication, reducing maintenance costs.
- Corrosion Resistance: Manufactured entirely from stainless steel (rings, balls, and cage), it performs reliably in corrosive environments and is compliant with ROHS and REACH standards.
- Precision & Smooth Running: Built to P0 tolerance class and standard CN radial internal clearance, it ensures consistent performance and low vibration.
W 61708-2RS1 Bearing Typical Application Areas
This bearing is well-suited for a wide range of compact and precision equipment, including:
- Small electric motors and gearboxes
- Medical and dental equipment
- Food processing machinery
- Office automation equipment (printers, scanners)
- Precision instruments and measuring devices
- Low-torque, high-speed drives (up to 7,500 rpm)
