NA46790SW/46720CD Double Row Taper Roller Bearing 165.1x225.425x95.25mm

1. Product Overview

NA46790SW/46720CD is TNA double row inch tapered roller bearing set, matched double cone NA46790SW and integrated double cup 46720CD, dimension 165.1×225.425×95.25mm.

Code Definition

Double row structure provides strong anti-overturning performance. Crowned rollers reduce edge stress, superfinished raceways lower friction heat. Widely used in mining dump trucks, railway wagons, large loaders and heavy industrial gearboxes.

2. Technical Specifications

Drawings and durability test reports available upon request.

3. Core Advantages

• Integral double cup, no need two single bearings matched separately
• Double row layout, great anti-overturning capacity for heavy axles
• Crowned rollers eliminate stress concentration, longer fatigue life
• Supports heavy radial load and bidirectional axial thrust simultaneously
• High-strength steel cage stable under severe vibration and impact
• Standard inch size, fully interchangeable with mainstream brands
• Custom clearance, high-temperature grease and laser marking available

4. Application Scenarios

• Mining: Heavy dump truck wheel hubs
• Railway: Freight wagon axle journals
• Construction: Large loader drive axles, road rollers
• Agriculture: Super large tractor and harvester shafts
• Heavy industry: Large gearbox support positions

Suitable for OEM assembly and aftermarket replacement of heavy load fixed shaft ends.

5. Why Choose GQZ Bearing

25 years experience manufacturing inch double row tapered roller bearings. Vacuum smelting GCr15 steel with complete heat treatment for stable hardness. Full OEM & ODM customization for clearance, lubricant and marking. Strict full-process inspection including raw material test, raceway superfinishing, roller sorting and vibration aging test. 24h professional technical support for load matching, tolerance selection and lubrication schemes. Factory direct price, stable stock for global heavy machinery buyers.

6. Quality Control

1. Raw material composition and hardness inspection
2. Quenching and stress relief tempering
3. CNC turning and ultra-precision raceway grinding
4. Precise stamped steel cage forming
5. Dust-free assembly with quantitative grease filling
6. High-speed aging and composite load fatigue testing
7. Final dimension inspection, anti-rust treatment, neutral export packaging

All batches pass vibration and noise test to ensure stable operation in harsh dusty and muddy environments.

7. Get A Quote

Send inquiries for NA46790SW/46720CD bearings used on mining trucks, railway wagons and construction loaders.

Services after inquiry:

1. Standard quotation within 24 working hours
2. Technical guidance for preload matching, tolerance selection and regular relubrication
3. Upgrade options: P5 precision, C3 clearance, high-temperature synthetic grease
4. Competitive bulk factory price for large orders

Please state order quantity, load, speed and working environment for complete formal quotation.

8. FAQ

Q1: Do you supply NA46790SW/46720CD TNA double row tapered roller bearings?

A1: Yes. We produce full series inch double row tapered roller bearings interchangeable with international standards, accept flexible OEM & ODM orders.

Q2: Key features of NA46790SW/46720CD?

A2: 165.1×225.425×95.25mm, integral double cup double row structure, crowned rollers, steel cage. Dynamic load 280kN, static load 635kN, limiting speed 1800r/min, designed for heavy axles with composite radial and bidirectional axial loads.

Q3: Where is this bearing applied?

A3: Mining dump trucks, railway wagons, large construction loaders and agricultural tractors. Integral cup simplifies installation; double row structure resists overturning torque; crowned rollers withstand continuous heavy impact.

Q4: Can you provide inspection certificates?

A4: Yes. All bearings are produced under ISO 9001 system. Each batch passes hardness, dimensional and vibration fatigue tests, full inspection documents available on request.

Q5: Delivery time and logistics?

A5: Stock goods ship in 7–15 working days. Sea, air and door-to-door express available. Neutral anti-rust carton and full customs documents for bulk orders.