Introduction to DAC30550032 Bearing
The DAC30550032 bearing is a widely used automotive wheel hub bearing, specifically designed for compact vehicles, ATVs, and light-duty applications. It belongs to the double-row angular contact ball bearing family, offering enhanced load capacity, rigidity, and durability compared to standard deep groove bearings.
Key Dimensions
- Inner Diameter (d): 30 mm
- Outer Diameter (D): 55 mm
- Width (B): 32 mm
These dimensions make it a compact yet robust bearing solution, ideal for wheel hub assemblies where space and performance must be balanced.
Technical Specifications
| Parameter | Value |
| Bearing Type | Double Row Angular Contact Ball Bearing |
| Structure | Integrated double row |
| Material | Chrome steel (GCr15 / SAE52100) |
| Cage | Steel or polyamide |
| Clearance | C0 / C3 optional |
| Weight | ~0.29 kg |
| Sealing Options | 2RS / ZZ / Spring Seal |
Structural Design
Unlike single-row bearings, DAC30550032 adopts a double-row design, allowing it to handle both radial and axial loads simultaneously. This makes it especially suitable for:
- Automotive wheel hubs
- Electric vehicles
- ATVs and UTVs
- Light industrial machinery
The internal geometry is optimized for high-speed rotation and shock resistance, ensuring stable operation even under uneven road conditions.
DAC30550032 Bearing Sealing Solution
Sealing plays a critical role in determining the lifespan and performance of a wheel bearing. The DAC30550032 bearing is commonly available in two main sealing structures:
1. Rubber Seal (Spring Seal / 2RS Structure)
The 2RS (double rubber seal) design uses elastomer seals reinforced with a spring lip to ensure tight contact with the inner ring.
Features:
- Excellent protection against dust, mud, and water
- Retains lubrication effectively
- Suitable for harsh environments
- Reduced contamination risk
Advantages:
- Ideal for off-road vehicles and ATVs
- Longer service life in wet or dirty conditions
- Lower maintenance requirements
Limitations:
- Slightly higher friction compared to metal shields
- Lower maximum speed capability
2. Metal Shield (ZZ Structure)
The ZZ (double metal shield) structure uses non-contact steel shields to protect the bearing.
Features:
- Low friction design
- Allows higher rotational speeds
- Basic dust protection
Advantages:
- Suitable for high-speed applications
- Lower torque and heat generation
- Cost-effective solution
Limitations:
- Not fully sealed against water or fine particles
- Requires cleaner operating environments
Comparison: 2RS vs ZZ
| Feature | 2RS (Rubber Seal) | ZZ (Metal Shield) |
| Sealing Performance | Excellent | Moderate |
| Friction | Higher | Lower |
| Speed Capability | Medium | High |
| Water Resistance | Strong | Weak |
| Typical Use | Off-road / Harsh | Clean / High-speed |
Replaces Cross Number
The DAC30550032 bearing is often interchangeable with various OEM and aftermarket part numbers. These cross-reference numbers help buyers identify compatible replacements across brands.
Common Cross Reference Numbers:
- DAC3055W
- DAC30550032-2RS
- DAC30550032-ZZ
- 30BWD01
- PW30550032CS
- DAC3055W3CS31
- DAC3055ATV
Why Cross References Matter
- Simplifies sourcing across global suppliers
- Enables OEM replacement without redesign
- Reduces procurement cost
For B2B buyers, cross-reference compatibility is essential when managing inventory standardization and multi-brand sourcing strategies.
Fitment List
The DAC30550032 bearing is widely used across different vehicle types and applications.
Automotive Applications
Commonly found in:
- Small passenger vehicles
- Compact SUVs
- Electric vehicles (EVs)
- Light trucks
Powersports Applications
- ATVs (All-Terrain Vehicles)
- UTVs (Utility Task Vehicles)
- Go-karts
Industrial Applications
- Agricultural machinery
- Small trailers
- Light-duty rotating equipment
Functional Role in Vehicles
In wheel hub systems, the DAC30550032 bearing:
- Supports vehicle weight
- Enables smooth wheel rotation
- Handles axial and radial loads
- Reduces friction and vibration
Its double-row structure eliminates the need for paired bearings, simplifying installation and improving reliability.
ATV model Fits:
ARCTIC CAT
1000 (Front Wheel) 2009 – 2014
250 (Front & Rear Wheel) 2005
300 (Front & Rear Wheel) 2005
350 (Front Wheel) 2011 – 2012
366 (Front Wheel) 2008 – 2009
400 (Front Wheel) 2005 – 2014
425 (Front Wheel) 2011 – 2012
450 (Front Wheel) 2010 – 2014
500 (Front Wheel) 2005 – 2014
350 (Front Wheel) 2009 – 2014
650 (Front Wheel) 2005 – 2006
650H1 (Front Wheel) 2006 – 2012
700H1 (Front Wheel) 2008 – 2011
750 (Front Wheel) 2006 – 2014
Prowler 1000 (Front Wheel) 2009 – 2014
Prowler 500 (Front Wheel) 2014
Prowler 550 (Front Wheel) 2009 – 2014
Prowler 650 (Front Wheel) 2006 – 2009
Prowler 700 (Front Wheel) 2009 – 2014
Prowler 700HDX (Front Wheel) 2011 – 2014
Thundercat (Front Wheel) 2008 – 2010
Wildcat (Front Wheel) 2012 – 2014
XC450 (Front Wheel)
KAWASAKI
Teryx 750 (Front Wheel) 2008 – 2013
Teryx 800 (Front Wheel) 2014 – 2016
Teryx4 750 (Front Wheel) 2012 – 2013
Teryx4 800 (Front Wheel) 2014 – 2016
SUZUKI
LTA 450X King Quad AXI (Front Wheel) 2007 – 2010
LTA 500X King Quad (Front Wheel) 2009 – 2014
LTA 700X King Quad (Front Wheel) 2005 – 2007
LTA 750X King Quad (Front Wheel) 2008 – 2015
YAMAHA
Big Bear 400 (Rear Wheel) 2007 – 2012
Grizzly 350 IRS (Rear Wheel) 2007 – 2011
Grizzly 400 (Rear Wheel) 2007 – 2009
Grizzly 550 (Front & Rear Wheel) 2009 – 2014
Grizzly 660 (Front & Rear Wheel) 2003 – 2008
Grizzly 700 (Front & Rear Wheel) 2007 – 2016
Kodiak 400 (Rear Wheel) 2005 – 2006
Kodiak 450 (Rear Wheel) 2005 – 2006
Kodiak 700 (Front & Rear Wheel) 2016
Performance Advantages of DAC30550032 Bearing
1. High Load Capacity
Double-row design allows handling of combined loads efficiently.
2. Compact Structure
Saves installation space while maintaining performance.
3. Long Service Life
Advanced sealing and lubrication reduce wear.
4. Easy Installation
Pre-assembled unit simplifies mounting.
5. Cost Efficiency
Widely available and interchangeable across brands.
How to Choose the Right DAC30550032 Bearing
When selecting this bearing, consider:
1. Sealing Type
- Choose 2RS for harsh environments
- Choose ZZ for high-speed, clean conditions
2. Clearance
- C0: Standard applications
- C3: High temperature or high-speed use
3. Material Quality
- Chrome steel (standard)
- Stainless steel (special applications)
4. Brand & Manufacturing Quality
Reliable suppliers like BYWB Bearing ensure:
- Consistent quality control
- OEM-grade materials
- Competitive pricing
Installation & Maintenance Tips
Installation
- Use proper press tools (avoid hammering)
- Ensure correct alignment
- Apply recommended torque
Maintenance
- Avoid contamination during installation
- Check seals regularly
- Replace when noise or vibration occurs
Conclusion
The DAC30550032 bearing is a versatile and high-performance solution for automotive and industrial applications. With its 30×55×32 mm dimensions, double-row structure, and multiple sealing options, it delivers excellent load capacity, durability, and reliability.
Whether you choose a 2RS rubber seal for harsh environments or a ZZ metal shield for high-speed applications, this bearing provides flexibility to meet diverse operational needs.
For wholesalers, OEMs, and distributors, the DAC30550032 offers:
- Wide cross-brand compatibility
- Strong market demand
- Cost-effective sourcing
At BYWB Bearing, we provide high-quality DAC30550032 bearings tailored to your requirements, ensuring performance, reliability, and long-term value.
FAQ
What is DAC30550032 bearing used for?
It is mainly used in automotive wheel hubs, ATVs, and light machinery to support radial and axial loads.
What size is DAC30550032 bearing?
The size is 30 mm × 55 mm × 32 mm.
What is the difference between 2RS and ZZ?
2RS: Rubber sealed, better protection
ZZ: Metal shielded, higher speed capability
Can DAC30550032 replace DAC3055W?
Yes, they are commonly interchangeable depending on sealing and clearance.
