10x28x39.5mm Printing Machine Bearing F-217813 Cam Follower Bearings F-217813.04

1.Product Overview
F-217813 is a compact integral needle roller bearing exclusively designed for variable displacement plunger hydraulic pumps of construction machinery such as excavators and loaders. It adopts integrated outer race, dense cylindrical needle rollers and stamped steel retainer as one unit, with a streamlined outer profile that precisely fits the inner curved cavity of hydraulic pump swash plates.
All rolling components and outer ring are manufactured from fully quenched GCr15 bearing steel with ultra-precision superfinished contact surfaces. The dense needle roller line contact structure effectively bears frequent alternating high hydraulic impact loads generated during full-load pump operation, reducing friction heat and delaying surface peeling and early wear failure. The compact embedded integrated structure eliminates the need for extra positioning sleeves, enabling fast press-fit installation and easy disassembly during pump maintenance, greatly cutting equipment downtime. Widely matched main hydraulic pumps of excavators, loaders, bulldozers and medium-sized industrial high-pressure hydraulic motors.

2. Technical Specifications

3. Core Advantages

1. Special curved outer outline matching hydraulic pump swash plate inner cavity, direct replacement for original pump bearings without any modification to pump housing.
2. Integrated all-in-one forming structure, complete needle roller and retainer pre-assembled, simplifying pump assembly flow and improving factory production efficiency.
3. Evenly distributed dense needle rollers disperse impact stress uniformly, resisting instantaneous pressure surges during pump start-stop and load switching.
4. Mirror superfinished rolling surface with low friction coefficient, controlling internal pump temperature rise under long continuous full-load operation to avoid oil carbonization and bearing seizure.
5. Full integral quenching heat treatment reaches HRC60–65 high hardness, excellent anti-fatigue and wear resistance, significantly extending hydraulic pump service and overhaul intervals.
6. Precision stamped steel retainer firmly locks all needle rollers, preventing needle displacement and scattering under long-term reciprocating alternating hydraulic load.
7. Universal standard installation dimension, fully interchangeable with mainstream F series hydraulic pump needle bearings, convenient for equipment maintenance spare parts stock management.
8. Comprehensive customized service: stainless steel anti-rust upgrade, OEM laser marking on outer ring surface, neutral export carton anti-rust packaging, high-temperature anti-wear hydraulic grease pre-filling.

4. Application Scenarios

F-217813 integral needle roller bearing is core wear-resistant heavy-load spare part for construction machinery hydraulic transmission systems:

• Excavator main variable plunger hydraulic pump swash plate curved support bearing assemblies
• Loader, bulldozer medium-duty plunger pump internal rolling matching units
• Small and medium engineering machinery rotary hydraulic motor, auxiliary pump core transmission components
• Light industrial hydraulic station variable pump, medium-pressure oil pump wear-resistant support positions
• Aftermarket interchangeable F series hydraulic pump dedicated compact needle roller bearing
• Cost-effective high-pressure anti-impact bearing solution for construction machinery maintenance factories and hydraulic pump OEM mass procurement.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience of construction machinery hydraulic pump integral needle roller bearings including F-217813
• F-217813 fully dimensionally interchangeable with original hydraulic pump matching bearings, consistent impact resistance, pressure wear resistance and assembly tolerance standards.
• Complete OEM & ODM customization service supporting C3 clearance adjustment, stainless steel anti-corrosion material and custom surface laser marking.
• Strict full pre-delivery inspection procedures: GCr15 raw material hardness test, needle roller dimensional sorting screening, long-cycle high-pressure impact aging test, reciprocating friction fatigue wear simulation test.
• Professional hydraulic pump bearing engineering team provides one-on-one pump model matching, hydraulic oil grade selection and pump core disassembly 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 engineering machinery hydraulic spare parts suppliers.
• We specialize in compact integral needle roller structure, high-pressure anti-impact wear-resistant design, pump universal interchangeable layout and long-term win-win cooperation with construction machinery hydraulic transmission equipment buyers.

6. Quality Control

• Raw material chemical composition, internal flaw and hardness inspection for GCr15 bearing steel outer race and needle roller blanks
• Precision ring stamping, quenching & tempering, ultra-mirror rolling surface finish grinding process for integral outer ring
• Cylindrical needle roller high-temperature quenching, superfinishing and high-precision automatic dimensional sorting production line
• Stamped steel retainer stamping forming and automatic needle assembly process, strictly control internal needle running clearance and circumferential uniformity
• Targeted classified performance testing: F-217813 long-cycle high-pressure alternating impact aging test, repeated swash plate reciprocating friction fatigue test, high-temperature hydraulic oil corrosion wear detection
• Full dimensional tolerance, surface crack and roughness recheck before anti-rust oil coating and export carton moisture-proof packaging shipment
• Every production batch of F-217813 bearings undergoes full sampling hydraulic pump simulation rotation test to guarantee stable long-term heavy impact wear-resistant support performance in engineering machinery variable plunger hydraulic pumps.

7. Get A Quote Now

If you need F-217813 integral compact needle roller bearings for excavator hydraulic pump maintenance and construction machinery hydraulic pump OEM 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 excavator pump model matching, hydraulic oil grade selection and pump core disassembly installation technical guidance from professional hydraulic pump bearing engineers
Customized bearing performance solutions including stainless steel anti-rust upgrade and C3 enlarged clearance options
Competitive direct factory bulk wholesale price for large-volume F-217813 single model orders
Provide your required purchase quantity, hydraulic pump model and continuous high-pressure working environment to obtain detailed formal quotation document.

8. FAQ

• Q1: What equipment is F-217813 mainly used for?
  A1: It is a special needle bearing for engineering machinery plunger hydraulic pumps, installed at the curved support position of the pump internal swash plate to bear reciprocating hydraulic impact load.
• Q2: What are the advantages of the integral integrated structure?
  A2: Needles and retainers are pre-assembled with the outer ring as a whole, which can be directly embedded into the pump cavity, reducing assembly steps and avoiding needle loss during maintenance.
• Q3: Can this bearing withstand long-term high-pressure continuous operation?
  A3: Yes, it adopts high-hardness quenched bearing steel and superfinished raceway, stable wear resistance under 32MPa long-cycle hydraulic pressure.