Deep Groove Ball Bearings – Double Rows

1.Product Introduction: With a double-row steel ball structure, its radial load-bearing capacity is 1.8 - 2.2 times that of the single-row ones, suitable for medium and heavy load, space-limited scenarios.
2.Structure Type: Inner ring + outer ring (with double circular arc raceways) + double-row steel balls + steel cage. An isolation ring is set in the middle to prevent collisions.
3.Size Range: Inner diameter: 20 - 800mm, outer diameter: 47 - 1000mm, width: 18 - 200mm.
4.Material: Inner ring / outer ring / isolation ring: GCr15/GCR15SIMN/20Cr2Ni4A, rolling elements (steel balls): GCr15/GCR15SIMN, cage: steel (for heavy load) / brass (for high-speed).
5.Accuracy: Conventional P0/P6 grades, heavy-duty precision models are of P5 grade.
6.Sealing: Open type / 2RS (double-sided rubber seal) / 2Z (double-sided iron seal).
7.Application Fields: Heavy-duty motors, mining machinery, port cranes, large water pumps.
8.Key Inspection Items: Consistency of double-row steel balls, radial clearance, parallelism of raceways.

Product Description

Deep Groove Ball Bearings - Double Rows: Precision Engineered for Extreme Performance

When heavy machinery demands unmatched durability and precision, deep groove ball bearings - double rows deliver. Designed to handle higher radial loads than single-row alternatives, these bearings excel in space-constrained, high-stress environments like mining equipment, medical devices, and port cranes. At LUOYANG INNO BEARING CO., LTD, we combine 30+ years of manufacturing expertise with advanced material science to create ball bearings that thrive under extreme temperatures, heavy impacts, and corrosive conditions.

Technical Specifications

Parameter Specification
Dimensions ID 20–800mm | OD 47–1000mm | Width 18–200mm (Custom up to φ3000mm+)
Load Capacity Radial load up to 1,200kN | Axial load support in both directions
Materials & Precision High-purity GCr15 steel, ceramic hybrid/brass/steel cages; Precision grades P0/P6 up to P5/P4
Sealing & Temp Open, 2RS rubber seals, 2Z steel shields, or triple-labyrinth seals; Resists up to 500°C+ with heat treatment

Key Advantages

  • Higher Radial Capacity: Double-row design handles 1.8–2.2x higher radial loads than standard deep groove ball bearings.
  • Rapid Customization: Non-standard double row deep groove ball bearings up to φ3000mm delivered in 15–20 days.
  • Impact & Corrosion Resistance: Specialized alloy steel and multi-lip seals protect heavy-duty bearing assemblies in harsh environments.

Proven Applications Across Industries

  • High-Temperature Rolling Mills: Heat-treated deep groove ball bearings - double rows achieve continuous operation in high-heat casting rollers.
  • Coastal Port Cranes: Shock-absorbing bearings with multi-layer seals reduce corrosion-related replacements on heavy machinery.
  • Medical Imaging Systems: P4-grade precision ball bearings eliminate micro-vibrations for low-noise MRI scanner operations.

Quality Assurance & Support

Every bearing undergoes spectrometer material checks, CMM micron-level inspection, and simulated environmental validation. We maintain 1,000+ standard ball bearing models in stock for 48-hour dispatch.

FAQs

Q: Can you customize deep groove ball bearings - double rows for high-dust environments?
A: Yes! Our 2RS-sealed bearings integrate multi-lip rubber seals to block 99.8% of particulate ingress.

Q: What is the minimum order quantity for custom double row ball bearing sizes?
A: MOQ starts at 50 units for non-standard custom bearing designs.

Q: How do I extend bearing service life in port machinery applications?
A: Opt for our triple-labyrinth sealed series and schedule bi-annual IoT condition checks for heavy-duty thrust and radial bearings.

Contact Us

Let's Solve Your Bearing Challenges Together

Contact our engineering team to submit your load parameters, request custom CAD drawings, or receive quotes within 24 hours.

📩 Contact Our Engineers Today

Online Message

Learn about our latest products and discounts through SMS or email