GNE50 Radial Spherical Plain Bearing With Oil Groove 50mm Bore Self-Lubricating Engineering Machinery Joint Bearing

1. Product Overview

GNE50 is heavy-duty radial spherical plain bearing with built-in lubrication channel, standard inner bore size 50mm. This bearing adopts integral inner and outer ring spherical matching structure, capable of multi-angle self-aligning swing to compensate installation deviation and shaft deflection deformation under heavy impact load.

The outer ring surface is reserved with oil injection hole and internal circulating oil storage groove, supporting regular grease replenishment to reduce dry friction wear during all-day continuous swing operation. The inner spherical contact surface is compounded with self-lubricating wear-resistant lining, low friction coefficient, stable performance under frequent reciprocating swing and alternating hydraulic impact load. All inner and outer rings are made of fully quenched GCr15 bearing steel with ultra-precision spherical grinding, high overall rigidity, not easy to crack under overload pressure. Widely matched hydraulic cylinder hinge joints, engineering machinery swing arm connecting parts, agricultural heavy equipment hinged support positions and metallurgical swing transmission mechanisms.

2. Technical Specifications

Complete hydraulic cylinder hinge installation drawings, load matching selection guide and long-cycle reciprocating swing impact durability test reports can be provided upon customer request.

3. Core Advantages

• Built-in outer ring oil injection hole and internal circulation oil storage tank, lubricating grease evenly covers the spherical friction surface after filling, greatly extend service life of continuous working hydraulic cylinder equipment.
• Double spherical self-aligning matching design, automatically eliminate assembly offset and shaft bending deformation, avoid local stress concentration and abnormal lining peeling wear.
• Copper-based composite self-lubricating lining embedded in inner spherical surface, anti-seize and low friction, adapt low-speed frequent reciprocating swing working conditions of hydraulic hinges.
• Integral forging inner and outer rings with overall quenching hardness up to HRC60–65, strong anti-overload and anti-instant hydraulic surge impact performance.
• Ultra-precision spherical grinding contact surface, uniform stress distribution, no local indentation after long-time heavy load reciprocating swing operation.
• Compact integrated structure without split assembly, high structural stability, reduce abnormal shaking of swing arm under alternating heavy load.
• Standard universal installation dimension, fully interchangeable with global GNE series heavy spherical plain bearings, no modification to hydraulic cylinder hinge base during spare parts replacement.
• Comprehensive customized service: P5 high precision upgrade, stainless steel anti-rust surface treatment, OEM laser marking on outer ring surface, neutral export carton anti-rust packaging, high-temperature extreme pressure lithium grease pre-filling.

4. Application Scenarios

GNE50 lubricatable heavy spherical plain bearing is core self-aligning heavy load hinge spare part for construction, agricultural and metallurgical hydraulic equipment:

• Excavator, loader boom and bucket hydraulic cylinder hinge joint bearing assemblies
• Large agricultural harvester, heavy tractor lifting cylinder and steering cylinder hinged matching units
• Metallurgical swing conveying equipment, hydraulic press heavy hinged connecting components
• Port small lifting machinery telescopic cylinder, underground mining equipment swing arm support positions
• Automatic forging equipment, heavy-duty manipulator reciprocating hinge transmission bearings

Aftermarket interchangeable GNE series lubrication type self-aligning spherical plain bearing
Cost-effective anti-impact wear-resistant hinge bearing solution for hydraulic cylinder manufacturers, engineering machinery OEM and heavy equipment maintenance factories bulk procurement.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience of GNE series lubricatable radial spherical plain bearings including GNE50
• GNE50 fully dimensionally interchangeable with international standard heavy spherical plain bearings, consistent swing load rating, self-aligning tolerance and lubrication channel matching standards.
• Complete OEM & ODM customization service supporting P5 precision grade and special high temperature resistant grease filling.
• Strict full pre-delivery inspection flow: GCr15 raw material metallographic & hardness test, spherical surface dimensional sorting screening, long-cycle reciprocating swing alternating impact aging test, continuous heavy load lining friction wear simulation test.
• Professional spherical plain bearing engineering team provides one-on-one hinge composite load calculation, hydraulic cylinder matching selection and cylinder base installation technical guidance within 24 working hours.
• Stable mass production workshop with competitive factory direct bulk wholesale price for large single-model batch orders, long-term stable supply for global construction, agricultural and metallurgical hydraulic spare parts buyers.

We specialize in integral spherical self-aligning structure, built-in oil groove lubrication design, unified interchangeable mounting dimension standard and long-term win-win cooperation with heavy hydraulic transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, internal flaw and hardness inspection for GCr15 bearing steel inner and outer ring blanks
• Precision integral forging, multiple tempering stress relief, multi-step ultra-precision spherical surface grinding and oil hole processing for inner and outer rings
• Copper-based self-lubricating lining hot pressing composite bonding production line, strictly control lining bonding tightness and surface uniformity
• Outer ring grease injection hole precision drilling, oil storage groove deburring processing, ensure smooth circulation of lubricating grease
• Targeted classified performance testing: GNE50 long-cycle reciprocating swing aging test, repeated hydraulic cylinder impact fatigue test, high-temperature grease long-cycle wear detection
• Full dimensional tolerance, spherical surface crack and roughness recheck before anti-rust oil coating and export carton moisture-proof packaging shipment

Every production batch of GNE50 bearings undergoes full sampling hydraulic cylinder hinge reciprocating swing simulation test to guarantee stable long-term heavy impact self-aligning wear-resistant support performance in construction and heavy hydraulic machinery equipment.

7. Get A Quote Now

If you need GNE50 lubricatable heavy spherical plain bearings for hydraulic cylinder manufacturing, construction machinery assembly and heavy agricultural equipment maintenance bulk matching, send your purchase inquiry directly.

You will receive full professional supporting services after submitting inquiry:

• Fast official factory sealed formal quotation reply within 24 working hours
• One-on-one hydraulic cylinder hinge load calculation, equipment model selection guidance and cylinder base press-fit installation technical guidance from professional spherical plain bearing engineers
• Customized bearing performance solutions including P5 high precision upgrade and high-temperature resistant grease options
• Competitive direct factory bulk wholesale price for large-volume GNE50 single model orders

Provide your required purchase quantity, equipment swing frequency and continuous heavy impact operating environment to obtain detailed formal quotation document.