NTN 4T-430313DX tapered roller bearing de doble hilera
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
NTN 4T-430313DX belongs to tapered roller bearing de doble hilera, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 4T-430313DX and any equivalents.
When you need a bearing that handles radial and axial forces simultaneously, the NTN double row tapered roller bearing is a solid choice. It packs two rows of tapered rollers into one unit, delivering the rigidity and load capacity that gearboxes, transmission shafts and mining equipment demand. MR Industrial Accessories supplies the NTN line to customers throughout the United States and Latin America, and our team is ready to help you match the right bearing to your application.
The part number tells you a lot if you know how to read it. In the 4T-4303XXDX series, the '4T-' prefix is NTN's marker for tapered bearings, while the 'DX' suffix signals the double row design. The base number runs from 4T-430308DX through 4T-430314DX, with the last digits indicating different size variants. Being able to decode this structure helps you confirm you're ordering the correct replacement.
These bearings show up in demanding environments: metallurgy, cement production, mining and heavy machinery manufacturing. You'll find them in speed reducers, overhead cranes, mills and earthmoving equipment. Their ability to take combined loads makes them suitable for shafts where axial forces reverse direction, as happens with helical or bevel gears.
Selection comes down to the load profile: radial and axial loads, rotation speed and the conditions on site. Tapered rollers don't tolerate misalignment, so precise mounting and proper lubrication are essential. Check internal clearance and sealing too—if dust or moisture is present, high-efficiency seals are the better option. Getting the installation right pays off in service life.
If you're replacing a bearing from another brand, we can cross-reference it to the corresponding NTN reference. Interchangeability hinges on dimensions and tolerances, so verifying the technical specs is a must. Our team helps you confirm the match so the replacement goes in without issues.
To request a quote for an NTN double row tapered roller bearing, send the part number or your application dimensions via WhatsApp or email. We reply promptly and can suggest equivalents or help you choose the right bearing. We also advise on mounting and lubrication to keep your equipment running.
Dimensions
- Bore
- 65 mm
Frequently asked questions
- What does the DX suffix mean in an NTN bearing?
- The DX suffix identifies a double row tapered roller bearing, meaning two rows are integrated into a single assembly. This design supports radial and axial loads in both directions and suits applications needing high load capacity and rigidity.
- How can I tell if a double row tapered bearing is compatible with my equipment?
- Compare the main dimensions—inner diameter, outer diameter and width—along with the load capacity. If you have the original part code, we can help you find the equivalent NTN reference. Send that data via WhatsApp and we'll advise you.
- What lubrication do you recommend for double row tapered bearings?
- Lubrication depends on operating conditions. Generally, high-viscosity greases or oils with EP additives are used. Follow the equipment manufacturer's recommendations and maintain an adequate lubricant film to prevent premature wear. We can advise based on your application.