Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 30203 |
| Product Name | Taper Roller Bearing |
| Specification (d x D x B) | 40*68*19 mm |
| Bore Size Range | 15-240 mm |
| Outer Dimension Range | 35mm-400mm |
| Material | Bearing Steel |
| Precision Rating | P0 P6 P5 P4 P2 |
| Separated Design | Separated |
| Load Direction | Radial Bearing |
| Spherical Type | Non-Aligning Bearings |
| Lubrication | Grease or Oil |
| Vibration Level | Z1V1 Z2V2 Z3V3 |
| Origin | China |
| HS Code | 8482200000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Gear Boxes |
| Automotive | Transmission Systems |
| Mechanical Engineering | Power Transmission Equipment |
Need a Tapered Roller Bearing 30203 for Your Gear Box? Here’s What to Check
Many gear box operators face unexpected downtime due to bearing failures—often caused by imprecise dimensions, poor material quality, or incorrect separation design. Sourcing the right 30203 bearing with P0-P2 precision can be tricky when dealing with multiple suppliers or unclear specifications.
Engineered for Gear Box Reliability
The Tapered Roller Bearing 30203 with Separated Design addresses these challenges directly. With our extensive experience in industrial bearings, we ensure each unit meets strict dimensional standards (40*68*19 mm) and precision ratings from P0 to P2. This bearing is specifically suited for gear boxes where radial load handling and easy maintenance are critical, supported by our ISO 9001 certified quality control processes.
Optimal Performance in Gear Transmission
This Gear Box Tapered Bearing 30203 excels in high-torque environments typical of gear box applications. Its separated design allows for quick disassembly during maintenance, reducing downtime. The bearing steel construction ensures durability under continuous operation, while grease or oil lubrication flexibility adapts to various operating conditions. Properly matched precision grades prevent premature wear, even in high-speed gear systems.
Key Engineering Features Explained
The separated design of this tapered roller bearing is a critical advantage for gear box maintenance. Unlike integrated bearings, it allows individual replacement of inner and outer rings, reducing repair costs. Precision ratings (P0-P2) determine rotational accuracy—P2 grade minimizes vibration in high-precision gear systems, while P0 offers cost-effective reliability for standard applications. The radial load capacity, combined with non-aligning properties, ensures stable performance even with minor shaft misalignment common in industrial setups.
Why Precision and Quality Impact Total Cost
Choosing a low-quality 30203 Bearing with Separated Design may seem economical initially, but frequent replacements and unplanned downtime quickly escalate costs. Our bearings undergo rigorous material hardness and dimensional testing, ensuring compliance with industry standards. Proper precision grading directly affects gear mesh efficiency—misaligned or imprecise bearings cause uneven wear, increasing energy consumption and reducing gear box lifespan. Investing in a high-precision tapered roller bearing ultimately lowers total operational costs.
Quality Assurance You Can Trust
Our Tapered Roller Bearing 30203 production follows ISO 9001 standards, with strict raw material inspection and finished product testing for hardness, dimension, and surface quality. We provide a warranty against manufacturing defects, ensuring customer confidence. With access to a wide range of industrial bearings, including both international and domestic brands, we can source or supply bearings according to your exact specifications. Our inventory system supports prompt delivery for urgent maintenance needs.
Packaging & Shipping
- Standard packaging: Carton and pallet for secure transportation
- Stock availability for quick dispatch on confirmed orders
- Flexible shipping options: Express, air, or sea freight based on urgency and destination
- Low minimum order quantity to support both small repairs and large-scale production
Get Your Tapered Roller Bearing 30203 Quote Today
Whether you need a single unit for emergency repair or bulk orders for production, we can provide the Tapered Roller Bearing 30203 with the precision grade and specifications you require. Share your gear box model, required precision level, and quantity, and our team will respond with pricing and delivery details promptly.
Frequently Asked Questions
Q: Can you supply other brands or models of tapered roller bearings?
A: Yes, we support procurement of all major brands and models. Simply provide the specific brand, model, or dimensional requirements, and we can source accordingly.
Q: How do I confirm if this 30203 bearing fits my gear box?
A: Provide your gear box model or the exact bore (d), outer diameter (D), and width (B) dimensions. Our technical team will verify compatibility with the 40*68*19 mm specification.
Q: What is your warranty policy for this bearing?
A: We offer a warranty against manufacturing defects. Specific terms are detailed in the sales contract, typically covering material and workmanship issues for a specified period from delivery.
Q: What is the minimum order quantity for the 30203 bearing?
A: We accept low minimum orders, including single units for emergency repairs, to support various customer needs.
Q: How long does shipping take for this bearing?
A: In-stock items ship within 1-2 business days. Delivery time depends on the shipping method selected—express (3-5 days), air (7-10 days), or sea (30-45 days).
Q: Do you offer OEM/ODM customization for this bearing?
A: Yes, we support custom specifications such as special packaging, laser marking, and technical document translation based on customer requirements.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.







