GQZ NA4828 Needle Roller Bearing 140×175×35mm With Separable Inner Ring For Industrial Compact Gear Units

NA4828 is metric series needle roller bearing equipped with a machined inner ring. This NA type construction consists of outer ring, needle roller & cage assembly and separable inner ring. It features ultra-compact radial section while maintaining outstanding radial load capacity. The inner ring can be separated from the needle roller unit to simplify assembly and disassembly procedures. It is mainly used to bear radial loads and fits well for equipment with narrow installation space, widely adopted in gearboxes, construction machinery and automation transmission systems.

Formal quotation will be sent within 24 hours upon your inquiry.

Model

NA4828

Dimensions

d140 mm, D175 mm, B35 mm

Net weight

approx 1.72 kg

Dynamic load rating Cr

136 kN

Static load rating Cor

265 kN

Limiting speed

Grease 3800 rpm, Oil 4600 rpm

Structure

Needle roller bearing, NA type (complete with separable inner ring)

Material

GCr15 bearing chrome steel, stamped steel cage

Clearance

Standard CN clearance; C3 optional

Sealing

Open type; sealed versions available upon request

Additional Information

Complete dimension drawings and load data available on request.

1. Slim compact cross-section design, greatly save radial installation space
2. Large number of needle rollers, excellent carrying capacity for heavy radial loads
3. Separable inner ring design, convenient installation, inspection and component replacement
4. Low friction loss, stable operation under continuous medium-speed rotating conditions
5. High rigidity, small deformation under heavy radial pressure
6. Customizable options: OEM laser marking, special clearance, surface strengthening treatment Effectively reduce space occupation and prolong service life of compact transmission assemblies.

• Light and medium-duty compact industrial gearboxes
• Construction machinery auxiliary transmission components
• Automation equipment, textile machinery rotating positions
• Light-duty conveying rollers and compact hydraulic equipment
• Motor accessories, small crankshaft supporting structures
• Mechanical equipment requiring high radial load within limited radial dimension

• 25 years professional bearing manufacturer
• Products exported to over 50 countries worldwide
• Strict inspection on raw material hardness, surface finish, load capacity and rotational smoothness before delivery
• 24-hour professional technical support for installation guidance
• Sufficient bulk stock for machinery and industrial distributors
• We supply stable dimensional accuracy, reliable performance and long-term cooperative support.

• GCr15 raw material chemical composition and hardness inspection
• Complete quenching & tempering heat stabilization treatment
• Precision superfinishing grinding for rings and needle rollers
• Cage forming and deburring processing
• Full dimension tolerance, static & dynamic load and rotational performance testing

If you need NA4828 needle roller bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional installation selection advice
• Custom marking and special technical requirements available
• Competitive factory direct price Contact our sales team for full technical datasheets and formal offer.