NUTR302 Yoke Type Support Roller Bearing 15x42x19 Double Row Full Complement Track Roller

1. Product Overview

NUTR302 is heavy-duty yoke-type double row full complement cylindrical roller support track roller, standard dimension 15mm inner bore × 42mm outer diameter × 19mm overall width, interchangeable with NUTR302X / NUTR302/3AS series track rollers. It adopts thickened solid outer ring with crowned spherical running surface, full complement cylindrical roller layout without retainer, greatly increasing the number of rolling elements to achieve ultra-high radial load and strong impact resistance. Equipped with double-side integrated contact sealing structure and reserved inner ring grease refilling hole, convenient for periodic maintenance lubrication. The outer ring can directly roll on linear guide rails, cam surfaces and conveying tracks, absorbing slight axial offset caused by assembly error. Widely used in heavy conveyor equipment, automated linear guides, stamping cam mechanisms, packaging machinery and logistics sorting equipment for heavy load rolling support.

2. Technical Specifications

3. Core Advantages

• Thick solid outer ring with high rigidity, strong anti-deformation performance, stable operation under heavy radial load and frequent impact working conditions.
• Full complement double row cylindrical roller design, more rolling elements than caged type, ultra-high bearing capacity, perfect for low-medium speed heavy load continuous operation.
• Crowned spherical outer ring surface, automatically compensate installation misalignment, avoid edge contact abrasion between roller and guide rail to extend service life.
• Double-side composite contact sealing structure, block workshop dust, metal chips, cooling liquid and splash water, adapt to harsh production workshop environment.
• Inner ring reserved grease refilling hole, easy to inject lubricating grease without disassembly, reduce equipment maintenance downtime.
• Integral inner ring precision grinding raceway, small rotation clearance, low running friction and low noise during long-cycle operation.
• Whole bearing overall quenching treatment, hardness HRC60–65, excellent wear resistance and fatigue resistance for long-term cyclic production line.
• Fully interchangeable with global standard NUTR302 series support rollers, direct replacement for original automation equipment without structural modification; complete customization service including stainless steel anti-corrosion version, OEM laser marking, neutral export anti-rust packaging, high temperature special grease filling.

4. Application Scenarios

NUTR302 double row full complement crowned surface support track roller is heavy-load rolling support spare part for industrial automation, heavy conveyor and stamping machinery with 15mm installation shaft:

• Heavy-duty logistics belt conveyor, pallet transport line guide support rollers
• Automated production line linear guide heavy load rolling components, automatic warehouse sliding fork rollers
• Stamping machine cam drive mechanism, hydraulic press feeding guide track rollers
• Large food packaging machinery, printing folding machine heavy pressure roller assemblies
• Small construction machinery, agricultural automated sorting equipment track support rollers

Aftermarket interchangeable NUTR series full complement yoke type track roller
High load anti-impact dustproof rolling bearing solution for conveyor equipment manufacturers, automation machinery OEMs and industrial equipment maintenance bulk procurement.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience of NUTR series heavy-duty support track rollers including NUTR302.
• NUTR302 fully dimensionally interchangeable with international standard counterparts, consistent dynamic/static load rating, sealing performance and dimensional tolerance standards.
• Complete OEM & ODM customization support for stainless steel material, high-temperature resistant grease and custom laser marking service.
• Strict pre-delivery inspection process: chrome steel raw material metallurgy & hardness test, cylindrical roller sorting screening, long-cycle continuous rotation aging test, repeated cutting fluid splash seal wear simulation test.
• Professional track roller engineering team provides one-on-one heavy load matching calculation, shaft installation torque guidance and periodic lubrication maintenance tips within 24 working hours.
• Standardized mass production workshop with competitive factory direct bulk wholesale price, long-term stable supply for global conveyor, automation and stamping machinery spare parts buyers.

We specialize in full complement double row yoke type support rollers, thick wall crowned outer ring structure, double-side multi-layer dustproof sealing and relubrication design, universal interchangeable metric dimension standard, long-term win-win cooperation with heavy-duty industrial transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, internal crack and hardness inspection for chrome steel inner ring, thick outer ring and cylindrical roller blanks
• Precision turning, multiple stress relief tempering, ultra-precision grinding for inner raceway and crowned outer ring rolling surface
• Cylindrical roller high-temperature quenching, mirror polishing and high-precision automatic sorting production line
• Inner ring grease hole precision drilling, double-side rubber seal pressing assembly and uniform pre-filled anti-wear grease treatment
• Targeted performance testing: NUTR302 long-cycle heavy load vibration rotation aging test, dust & cutting fluid splash sealing durability test, continuous impact anti-wear detection
• Full dimensional tolerance, outer ring surface finish and sealing tightness recheck before anti-rust oil coating and export moisture-proof carton packaging shipment

Each production batch of NUTR302 track rollers undergoes heavy conveyor rail cyclic simulation test, ensuring stable long-term high-load dust-proof rolling support performance for industrial automation guide systems with 15mm transmission shafts.

7. Get A Quote Now

If you need NUTR302 15x42x19 double row full complement crowned surface yoke type support track rollers for heavy conveyor automation manufacturing, linear guide assembly and industrial equipment maintenance bulk matching, send your purchase inquiry directly.

Full professional supporting services after inquiry submission:

• Official sealed formal quotation reply within 24 working hours
• One-on-one heavy radial load matching calculation, solid shaft installation guidance and periodic relubrication technical support from professional bearing engineers
• Custom roller performance upgrades including stainless steel body and high-temperature resistant grease options
• Favorable factory direct bulk wholesale price for large-volume NUTR302 single model orders

Provide your required purchase quantity, equipment working environment (dust/cutting fluid/heavy impact vibration) and continuous operating temperature to obtain detailed official quotation documents.

8. FAQ