Crescent Needle Roller Bearing F-225035.3, Hydraulic Pump Swing Bearing Width - 27mm

1. Product Overview

F-225035.3 is a customized crescent curved needle roller cage assembly specially developed for heavy-duty axial piston hydraulic pumps. It adopts integrated structure of precision cylindrical needle rollers and glass fiber reinforced nylon cage, reserved internal oil passages to guarantee uninterrupted hydraulic oil circulation and full lubrication for rolling contact surfaces during high-pressure continuous operationAlibaba.co....

Unique arc curved outline perfectly fits pump rotor arc raceway, evenly disperse radial pressure generated by high-pressure hydraulic oil, avoid local stress concentration and abnormal abrasion. Needle rollers are made of through-hardened GCr15 bearing steel with mirror superfinishing, consistent dimensional tolerance, low friction loss and stable rotation under high-speed reciprocating motion. Reinforced PA66 nylon cage features outstanding oil resistance, high temperature resistance and anti-deformation performance, no swelling or cracking after long-time soaking in high-temperature hydraulic oil. Widely matched for construction machinery main hydraulic pumps, heavy mobile equipment hydraulic power units and engineering vehicle hydraulic drive systems.

2. Technical Specifications

Complete installation drawings, pump assembly matching guide and long-cycle high-temperature oil soaking durability test reports can be provided upon customer request.

3. Core Advantages

1. Exclusive crescent curved arc molding design, fully fit hydraulic pump rotor arc raceway, uniform load distribution on each needle roller, effectively extend pump core service life under long-term high-pressure working state.
2. Built-in independent oil passage structure, smooth hydraulic oil circulation channel, continuously deliver lubricating medium to roller contact surface, reduce friction heat generation and internal power loss of hydraulic pump.
3. Glass fiber reinforced nylon retainer, excellent oil resistance and high temperature stability, long-term immersion in hydraulic oil will not deform, crack or expand, maintain accurate roller guiding performance.
4. Ultra-precision polished needle rollers with strict sorting process, eliminate roller diameter deviation, avoid unbalanced wear of pump rotor and valve plate caused by inconsistent roller size.
5. Miniature compact overall outline, occupy tiny internal pump space, direct interchangeable replacement without modifying pump housing during equipment maintenance.
6. Full customizable service support: P5 high precision roller upgrade, high temperature resistant modified cage material, OEM laser marking, neutral export carton packaging.
7. Integrated injection molding cage forming process, stable structural rigidity, strong anti-impact performance against instantaneous hydraulic pressure fluctuation.
8. Fully interchangeable size with original matching pump spare parts, suitable for aftermarket bulk maintenance replacement and hydraulic pump manufacturer OEM assembly supporting.

4. Application Scenarios

F-225035.3 curved crescent needle roller cage assembly is core vulnerable spare part for construction machinery hydraulic power system:

• Heavy-duty axial piston hydraulic pump internal rotor supporting roller assemblies for crawler excavators, wheel loaders
• Engineering vehicle main hydraulic drive pump core transmission supporting components
• Large mobile mining machinery hydraulic power unit internal precision rolling parts
• Agricultural heavy harvester variable hydraulic pump matching needle roller cage assemblies
• Aftermarket interchangeable F series crescent curved needle roller cage for hydraulic pump maintenance replacement
• Cost-effective high precision hydraulic pump bearing solution for hydraulic pump OEM manufacturers, construction machinery repair factories and engineering hydraulic parts bulk suppliers.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience for F series special curved needle roller cage assemblies including F-225035.3
• F-225035.3 fully dimensionally interchangeable with standard hydraulic pump matching needle roller assemblies, consistent roller dimensional tolerance and cage arc matching indicators.
• Complete OEM & ODM customization service supporting high precision roller upgrading, high temperature resistant cage material modification and customized marking service.
• Full strict pre-delivery inspection: GCr15 roller hardness test, roller surface roughness inspection, nylon cage high-temperature oil soaking aging test, arc fitting matching detection.
• Professional hydraulic pump bearing engineering team provides pump rotor assembly matching and installation clearance adjustment technical guidance within 24 hours.
• Stable mass production lines with favorable bulk wholesale prices for long-term hydraulic pump manufacturers, construction machinery repair factories and engineering hydraulic parts distributors.
• We focus on curved arc high-pressure pump special roller design, low friction high temperature resistant performance, direct interchange maintenance structure and long-term win-win cooperation with global construction machinery hydraulic spare parts buyers.

6. Quality Control

• Raw material chemical composition and hardness inspection of GCr15 bearing steel needle rollers
• Precision cutting, quenching tempering and mirror superfinishing processing for all needle rollers to ensure uniform smooth contact surface
• Glass fiber nylon integrated injection molding forming process, precise oil passage positioning and standard crescent arc forming, stable structural strength
• Classified targeted performance testing: F-225035.3 long-cycle high-speed rotation aging test, high-temperature hydraulic oil continuous soaking durability test, roller dimensional consistency sorting detection
• Needle roller assembly into cage, full dimensional and arc fitting recheck before anti-rust oil coating and carton packaging shipment
• Each batch of F-225035.3 assemblies passes full sampling high-speed reciprocating rotation test to guarantee stable long-term supporting performance inside axial piston hydraulic pumps and construction machinery hydraulic systems.

7. Get A Quote Now

If you need high precision F-225035.3 crescent needle roller cage assemblies matched for heavy-duty axial piston hydraulic pumps for construction machinery hydraulic system maintenance & OEM matching, send your inquiry directly.

You will receive complete professional supporting services after submitting your inquiry:

• Fast official factory quotation reply within 24 hours
• One-on-one hydraulic pump rotor matching installation technical guidance from professional F series special needle roller engineers
• Customized bearing scheme suggestions including P5 high precision roller upgrade options
• Competitive direct factory bulk wholesale price for large spare parts bulk orders
• Send your required purchase quantity and equipment high-speed, high-pressure & high-temperature hydraulic oil working environment to obtain detailed formal quotation.

8. FAQ

Q1: What structural feature does F-225035.3 have?

A1: It is a special crescent curved needle roller cage assembly without outer ring, exclusive for heavy axial piston hydraulic pump rotor, built-in oil passage for continuous hydraulic oil lubrication.

Q2: What material is the cage made of?

A2: Reinforced glass fiber PA66 nylon, with excellent oil resistance and high temperature resistance, fit long-term working inside hydraulic pump cavity.

Q3: What equipment is F-225035.3 mainly applied to?

A3: Mainly matched with heavy axial piston hydraulic pumps installed on excavators, loaders and other construction machinery hydraulic power systems.