Deep groove ball bearings

SKF Deep Groove Ball Bearings are an important part of the SKF product range, with a wide range of applications and significant features. The following is a detailed description of SKF deep groove ball bearings:

Basic characteristics

Deep groove ball bearings are uniquely designed to withstand radial loads and certain axial loads. Their low friction and high rotation speed characteristics make them excellent in applications that require high speeds and low noise. In addition, deep groove ball bearings are easy to install and disassemble, have low maintenance costs, and are suitable for various harsh environments.

Application scenarios

Deep groove ball bearings are widely used in various industrial fields, including automobiles, machine tools, plastic machinery, engineering machinery, etc. Its high precision, strong wear resistance, strong adaptability and low noise make it an ideal choice for many industrial applications. SKF offers a wide range of deep groove ball bearings in various sizes, which can flexibly adapt to different load and speed requirements to ensure the stability and service life of the bearings.

Design and manufacturing process

Deep groove ball bearings consist of an outer ring, an inner ring, a set of precision steel balls and a cage. Its compact design allows stable operation in various harsh environments. SKF’s deep groove ball bearings are manufactured with high precision, can maintain stability at high speeds, have high load capacity and good wear resistance. Performance parameters and specifications SKF deep groove ball bearings have various specifications, covering a variety of designs and variants, including single-row deep groove ball bearings, stainless steel deep groove ball bearings, single-row deep groove ball bearings with filling grooves, etc. These design variants meet the specific needs of different application scenarios and provide higher performance advantages.

SKF Deep Groove Ball Bearings are versatile, high-performance bearings designed to handle radial and axial loads in both directions, making them one of the most widely used bearing types across industries. Characterized by their simple yet robust construction—featuring deep raceway grooves and seamless contact between balls and raceways—these bearings excel in applications requiring low friction, high-speed operation, and long-term reliability. SKF’s precision engineering ensures optimal performance in everything from household appliances to heavy industrial machinery, offering a perfect balance of durability, efficiency, and cost-effectiveness.

Key Features & Benefits of SKF Deep Groove Ball Bearings

  1. Radial and Axial Load Versatility

Dual Load Capacity: Engineered to support moderate radial loads and light to moderate axial loads in both directions, eliminating the need for additional thrust bearings in many applications.

High-Speed Capability: Low friction and optimized internal geometry enable smooth operation at rotational speeds up to 30,000 RPM (dependent on size and lubrication).

  1. Robust Construction & Durability

High-Grade Materials: Manufactured from chromium steel (SAE 52100) or stainless steel (AISI 440C) for exceptional wear resistance and fatigue strength.

Precision Grinding: Raceways and balls are ground to micron-level tolerances (ABEC-1 to ABEC-3 standards) for consistent performance and minimal vibration.

Sealing Options: Available with shields (ZZ, 2Z) or seals (RSH, 2RSH) to protect against dust, moisture, and contaminants, extending service life in harsh environments.

  1. Low Maintenance & Energy Efficiency

Minimal Lubrication Needs: Pre-greased with high-quality lubricants (e.g., SKF LGHP 2) for extended service intervals.

Reduced Friction: Optimized ball-to-raceway contact lowers heat generation, improving energy efficiency in motors and drives.

  1. Design Flexibility

Single-Row & Double-Row Configurations: Single-row for standard applications; double-row for higher radial load capacity and rigidity.

Specialized Variants:

Max-Type: Reinforced for extreme loads in vibratory machinery.

Sensor-Ready Bearings: Equipped with sensors for condition monitoring (e.g., temperature, vibration).

Stainless Steel Models: Ideal for food processing, medical, or marine applications requiring corrosion resistance.

  1. Ease of Installation

Interchangeability: Conforms to ISO dimensions for seamless replacement in existing systems.

Snap Ring Grooves: Optional grooves for axial positioning in housings without shoulders.

SKF Deep Groove Ball Bearings epitomize versatility and reliability, offering a universal solution for radial and axial load challenges across countless applications. From electric vehicles to household appliances, their precision engineering, low maintenance, and adaptability make them a cornerstone of modern machinery. Backed by SKF’s global reputation for quality and innovation, these bearings ensure optimal performance, energy efficiency, and longevity—empowering industries to achieve operational excellence while reducing total cost of ownership. Whether for OEM integration or aftermarket upgrades, SKF Deep Groove Ball Bearings deliver unmatched value in a compact, durable package.

 

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Designation Bore diameter Outside diameter Width Basic dynamic load rating Limiting speed Mass
WBB1-8706-2Z
6.0 mm
12.0 mm
4.0 mm
0.403 kN
56000.0 r/min
0.0016 kg
WBB1-8708-2Z
8.0 mm
14.0 mm
4.0 mm
0.462 kN
48000.0 r/min
0.0219 kg
W 638-2Z
8.0 mm
28.0 mm
9.0 mm
3.97 kN
32000.0 r/min
W 638/3-2RS1
3.0 mm
7.0 mm
3.0 mm
0.178 kN
45000.0 r/min
0.0008 kg
W 63801-2RS1
12.0 mm
21.0 mm
7.0 mm
1.51 kN
20000.0 r/min
0.0093 kg
W 639
9.0 mm
30.0 mm
10.0 mm
4.36 kN
36000.0 r/min
W 619/3
3.0 mm
8.0 mm
3.0 mm
0.319 kN
95000.0 r/min
W 619/6 X-2RS1
6.0 mm
16.0 mm
5.0 mm
0.761 kN
30000.0 r/min
0.0045 kg
W 61904-2Z
20.0 mm
37.0 mm
9.0 mm
5.53 kN
20000.0 r/min
W 61905-2Z
25.0 mm
42.0 mm
9.0 mm
6.05 kN
17000.0 r/min
W 61909-2Z
45.0 mm
68.0 mm
12.0 mm
12.1 kN
10000.0 r/min
W 627/4 R-2Z
4.0 mm
7.0 mm
2.5 mm
0.143 kN
75000.0 r/min
0.0008 kg
W 628/7 R-2Z
7.0 mm
14.0 mm
5.0 mm
0.663 kN
50000.0 r/min
0.0029 kg
W 628/8 R-2Z
8.0 mm
16.0 mm
5.0 mm
0.715 kN
45000.0 r/min
0.0042 kg
W 61802 R
15.0 mm
24.0 mm
5.0 mm
1.65 kN
38000.0 r/min
0.0083 kg
W 633
3.0 mm
13.0 mm
5.0 mm
0.741 kN
70000.0 r/min
W 61803-2RZ
17.0 mm
26.0 mm
5.0 mm
1.78 kN
28000.0 r/min
0.0083 kg
W 636-2RS1
6.0 mm
22.0 mm
7.0 mm
1.99 kN
22000.0 r/min
W 61806-2RZ
30.0 mm
42.0 mm
7.0 mm
3.58 kN
17000.0 r/min
0.0241 kg
W 637-2RS1
7.0 mm
26.0 mm
9.0 mm
3.97 kN
19000.0 r/min