Double row angular contact ball bearings offer high radial and bidirectional thrust capacity, making them ideal for motors, gearboxes, and machinery requiring stable, low-friction performance. This guide highlights five reliable options from top brands, explaining key features, dimensions, and suitability. Whether you’re upgrading equipment or selecting replacements, these bearings balance durability, smoothness, and resistance to contaminants, while keeping maintenance practical for American workshops and DIY projects alike.
| Product | Brand | Size (ID x OD x Width) | Seal/Shield | Notes |
|---|---|---|---|---|
| uxcell 3202-2RS Double Row Angular Contact | uxcell | 15 x 35 x 15.9 mm | Double Sided Sealed | Chrome steel, low noise |
| [2-Pack] 5200-ZZ Double Row Angular | QJZ | 10 x 30 x 14.3 mm | Double Metal Shield (ZZ) | Compact, two-pack value |
| Atoplee U Groove Ball Track Guide Bearing | ATOPLEE | 8 x 24 x 11 mm | Sealed | Designed for groove tracks, high precision |
| Lheng 5202-2RS Double Row | Lheng | 15 x 35 x 15.9 mm | Double Sided Rubber Seals | 20-degree contact angle for thrust |
| SKF FW78 Ball Bearing (Double Row) | SKF | Varies by model | Open to sealed variants | Durable option with broad availability |
All products listed are suitable for compact to moderate-load applications. They come from established brands and offer either sealed or shielded designs to protect lubricants and extend service life. When selecting, consider dimensions, load direction, and environment to ensure the best fit for your project.
uxcell 3202-2RS Double Row Angular Contact Ball Bearing
The uxcell 3202-2RS package features double-row angular contact ball bearings with an inner diameter of 15 mm, outer diameter of 35 mm, and a thickness of 15.9 mm. Sealed on both sides, these bearings help retain lubricant and protect against contaminants. Made from chrome steel for long life, they offer smooth operation with low noise. The 2-pack configuration provides practical value for projects where multiple bearings are required, such as tool slides, small machines, or hobby robotics. Fitment is typical for compact assemblies where axial and radial loads occur in tandem.
[2-Pack] 5200-ZZ Double Row Angular
![[2-Pack] 5200-ZZ Double Row Angular](https://m.media-amazon.com/images/I/41QADOppsJL._SL500_.jpg)
The 5200-ZZ series from QJZ is a compact double row angular contact bearing with double metal shields (ZZ) for robust protection against dust and moisture. Its inner diameter is 0.393 inches (10 mm), outer diameter 1.1811 inches (30 mm), and width 0.5625 inches (14.3 mm). This size makes it suitable for small machinery, robotics joints, and precision components where limited space is available. The ZZ shields provide a practical balance between protection and performance, enabling smoother rotation with reduced maintenance in moderate environments.
Atoplee U Groove Ball Track Guide Bearing
Atoplee’s U Groove Ball Track Guide Bearing is designed for guided motion along cylindrical tracks, combining a strong outer ring with a double-row angular contact arrangement. The model LFR50/8-6 measures 8 x 24 x 11 mm, with a robust bearing steel construction that supports stable operation and high running speed. Seals help preserve lubricant and keep out contaminants. This bearing is suited for linear guides, automation equipment, and small conveyance systems where precise alignment and low noise are essential.
Lheng 5202-2RS Double Row Angular
The Lheng 5202-2RS offers a double-row angular contact ball bearing with a 15 x 35 x 15.9 mm footprint, sealed on both sides to retain lubricant and resist contaminants. A 20-degree ball contact angle increases thrust load capacity, making it more capable in combined radial and axial load scenarios than basic spools or small motors. Rubber seals on both sides provide reliable protection in moderate environments. This bearing line is well-suited for compact machinery and synchronized rotating assemblies where precision and durability matter.
SKF FW78 Double Row Angular Contact
The SKF FW78 is a well-known double-row angular contact bearing option, designed to support both radial and axial loads with high durability. Known for a broad product range, SKF bearings are offered in various sizes and materials to meet demanding industrial and precision needs. The FW78 designation indicates robust construction suitable for motor assemblies, gearboxes, and equipment requiring reliable performance under mixed loading. Availability from SKF supports easy sourcing and consistent quality control in American manufacturing contexts.
NICHE Wheel Bearing 5204-2RS
The NICHE 5204-2RS is a double-row angular contact bearing designed for wheel and small appliance applications. It features chrome steel (GCr15) construction with rubber seals to preserve grease and prevent contaminants from entering. The 20 mm ID, 47 mm OD, and 20.6 mm width offer a balanced profile for compact wheel hubs or similar assemblies. The two-seal design helps extend service life in dusty or outdoor environments commonly faced by automotive and cycling components.
RITZ INDUSTRIAL 5210-2RS Double Row
The RITZ INDUSTRIAL 5210-2RS is a double-row angular contact bearing designed for electric motor quality performance. With dimensions of 50 mm x 90 mm x 30.2 mm, this bearing supports significant radial and axial loads. The double-row configuration helps distribute load and improve rigidity in motor housings and gear systems. The packaging as a 2-pack option provides installation redundancy or kit-based maintenance for larger assemblies where downtime matters.
Buying Guide: Key Considerations When Choosing Double Row Angular Contact Bearings
Load capacity and direction: Double-row bearings handle radial and bidirectional axial loads, but the exact load ratings depend on inner/outer race design and seal choice. Consider the direction and magnitude of loads in your application to select the appropriate contact angle and precision class.
Size and fit: Verify inner diameter (ID), outer diameter (OD), and width (W) to ensure proper seat in housings, shafts, and adjacent components. Small-form bearings like 8 x 24 x 11 mm are ideal for compact machinery, while 15 x 35 mm variants suit mid-size assemblies.
Seals vs shields: Sealed bearings retain lubricant and offer superior contamination protection but can introduce slightly higher friction. Shielded variants provide good protection with lower friction, often suitable for less dirty environments. Choose based on operating conditions and maintenance access.
Material and durability: Chrome steel (GCr15) is common for good wear resistance and longevity. Consider corrosion resistance and exposure to chemicals or moisture in your environment. For high-speed applications, surface finish and roundness tolerances also matter.
Lubrication and maintenance: Sealed bearings typically come pre-lubricated; however, consider re-lubrication needs in high-temperature or high-speed uses. Ensure compatibility of lubrication type with the bearing design to optimize life and performance.
Availability and sourcing: Brands like SKF, NICHE, and uxcell provide widely available options. For ongoing maintenance or multi-bearings kits, consider multi-pack options to reduce downtime and simplify stocking.
Operational environment: If your application involves outdoor exposure, dust, or moisture, prioritize double-seal designs or shielded variants. For clean-room or precision lab equipment, focus on tight tolerances and low-noise performance.