Bearings are foundational elements of any rotating system, tasked with reducing friction, managing loads and ensuring smooth mechanical operation. While often standardised, the correct bearing selection can dramatically enhance system robustness, alignment tolerance and lifecycle performance.
We explore the major bearing types — including Neuweg’s specialisation, double row ball bearing configurations — their engineering merits, application trends, market share and how value-added features are shaping the next generation of high-performance machinery.
1. Deep Groove Ball Bearings (DGBB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| Primarily radial, moderate axial (both directions) | High | Single row & double row |
Benefits
- Cost-effective and compact
- Low noise, high-speed capability
- Widely available in sealed or open formats
Disadvantages
- Low misalignment tolerance
- Limited axial load capacity compared to angular or tapered designs
Double Row DGBB
- Handles higher radial loads in a compact footprint
- Increased axial load capability vs. single row
- Common in automotive steering columns, pump motors, and gearboxes
- Slightly wider, but ideal when space limits the use of larger single-row units
Key Applications
- Electric motors, fans, HVAC
- Home appliances, office equipment
- Gearboxes, agricultural equipment
Market Share: ~55–60% of all rolling element bearings. Double row variants account for 10–15% of that due to their specific advantages in load handling and compact design.
2. Angular Contact Ball Bearings (ACBB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| Combined axial and radial | Very high | Single row, double row, paired |
Benefits
- Excellent axial and radial load combination support
- Can be preloaded for rigidity
- High-speed capability in precision systems
Disadvantages
- Sensitive to mounting conditions
- Higher cost, especially for matched or duplex pairs
Double Row ACBB
- Mimics back-to-back duplex arrangement
- Built-in preload and better axial stiffness
- Ideal for robot joints, gearboxes, compressors
- Saves assembly time and space compared to mounting two single-row bearings
Key Applications
- CNC spindles, robotics
- EV motors, traction drives
- Machine tool headstocks
Market Share: ~10–12%, with double row types making up ~20% of this due to the demand for compact high-load assemblies.
3. Tapered Roller Bearings (TRB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| High radial + high axial (in one direction) | Medium | Single row, double row (or paired) |
Benefits
- Excellent for handling shock and combined loads
- Suitable for harsh industrial and automotive environments
Disadvantages
- Requires precise preload
- Larger axial space requirement
Key Applications
- Axle hubs, differential housings
- Heavy-duty gearboxes, crushers
Market Share: ~15% of rolling bearing usage; double row or paired assemblies are common in heavy-load applications.
4. Cylindrical Roller Bearings (CRB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| Very high radial | High | Single, double, multi-row |
Benefits
- High rigidity and load capacity
- Low rolling friction in optimized designs
Disadvantages
- Poor axial load handling (unless with thrust rings)
- Sensitive to misalignment
Key Applications
- Wind turbines
- Rolling mills
- Industrial gearboxes
Market Share: ~7–10%, with multi-row variants taking the lead in high-load, high-rigidity systems.
5. Spherical Roller Bearings (SRB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| High radial + moderate axial | Medium | All are inherently double row |
Benefits
- Self-aligning capability
- Handles heavy radial and shock loads
- Tolerates shaft deflection and misalignment
Disadvantages
- Higher friction vs. ball bearings
- Bulkier, higher cost
By Design: Always Double Row
- SRBs inherently feature two rows of barrel-shaped rollers
- Found in high-misalignment or high-load applications like:
- Mining conveyors
- Vibrating screens
- Marine shafts
Market Share: ~5–7%; market remains robust in heavy industry and renewable energy sectors.
6. Needle Roller Bearings (NRB)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| High radial, compact design | Medium | Single and double row |
Benefits
- High radial load in a tight space
- Low weight
- Often integrated into assemblies
Disadvantages
- Sensitive to raceway quality
- Limited axial capacity
Key Applications
- Automotive gearboxes
- Compact engines and tools
Market Share: ~3–5%, with double row options growing in EV and hybrid gear applications.
7. Thrust Bearings (Ball & Roller)
Technical Snapshot
| Loads | Speed | Variants |
|---|---|---|
| Axial only | Low to moderate | Single and double direction |
Benefits
- Handles pure axial load
- Available in ball or roller format
Disadvantages
- No radial support
- Requires good axial alignment
Double Direction Thrust Bearings
- Used in vertical pumps, lathe tailstocks, and marine propulsion
- Roller types preferred in high-load applications
Key Applications
- Vertical shafts, cranes
- Heavy presses
Market Share: ~2–3%, but critical in niche heavy-duty sectors.
Summary Table: Technical and Market Outlook
| Type | Key Benefits | Drawbacks | Market Trend | Added Value Potential |
|---|---|---|---|---|
| DGBB | Compact, high radial load | Limited axial misalignment | Stable, commoditised | Hybrid ceramics, smart seals |
| ACBB | Combined loads, preload built-in | Price, assembly sensitivity | Rising, high precision | Integrated sensors, duplex preloading |
| TRB | High stiffness, axial both directions | Bulky, preload required | Expanding in EVs and off-road | Pre-greased hubs, wear coatings |
| CRB | High rigidity, large radial loads | Poor axial unless combined | Strong in industrial sectors | Split housings, coated rollers |
| SRB | Self-aligning, shock tolerant | Higher friction, bulky | Increasing in renewables | Condition monitoring, sealed-for-life designs |
| NRB | Compact + load capability | Raceway dependency | Growing in compact drives | Composite retainers, modular units |
| Thrust | High axial, bi-directional support | No radial capability | Stable in niche markets | Self-aligning thrust races, high-temp greases |
Final Engineering Takeaways
Double row bearings provide a compact solution for increased radial (and often axial) load handling. Their use is particularly strategic in space-constrained or modular machinery, especially where rigidity, alignment, or axial bidirectionality is needed.
When designing with double row options, always consider:
- Assembly complexity
- Serviceability
- Cost vs. using paired single-row bearings
Strategic Outlook
As the global machinery sector moves toward higher efficiency, smarter systems, and compact modularity, the demand for double row bearings is growing — especially in electric vehicles, robotics, and industrial automation.
The future lies not just in bearing performance, but in bearing intelligence: integrated sensors, lubricants, and smart surface technologies that reduce downtime and add quantifiable value to OEMs and operators alike.
