F-803675 Hydraulic Pump Needle Roller Bearing High Precision Automobile Pump Bearing

1. Product Overview

F-803675 is drawn cup needle roller bearing specially customized for automobile hydraulic power steering pump, integrated thin stamping outer cup + high hardness needle roller assembly, compact thin-wall structure to fit narrow internal installation space of automotive pump housing.

Model Code Explanation:

• F: Special automobile hydraulic pump series drawn cup needle roller bearing
• 803675: Unique custom part number for power steering pump supporting bearing

Thin stamped high carbon steel outer cup with integrated forming process, no separate inner ring, directly matched with quenched pump shaft surface as raceway. High density cylindrical needle rollers are evenly arranged inside the cup, large contact area brings outstanding radial load capacity under limited radial thickness. Ultra-thin wall lightweight design effectively reduce overall pump weight; surface of outer cup is precisely processed to ensure tight interference fit with pump housing bore. Factory pre-filled low-viscosity anti-wear grease matching hydraulic pump high-speed circulation working condition, stable low-friction rotation. Mainly used in passenger car, light commercial vehicle hydraulic power steering pump, automobile brake booster auxiliary pump, small hydraulic oil pump and other automotive miniature hydraulic rotary components.

2. Technical Specifications

Mounting dimension drawings, automobile power steering pump assembly matching guides and high-speed cycle durability test reports can be provided on customer request.

3. Core Advantages

1. Ultra-thin drawn cup integrated structure, extremely small radial cross-section, perfectly adapt narrow limited installation space inside automobile hydraulic pump housing.
2. Full complement dense needle roller layout, large effective contact length, strong radial bearing capacity, stable support under high-speed alternating load of power steering pump.
3. Stamped thin outer cup with high dimensional precision, stable interference fit with pump housing bore, no looseness or abnormal noise during long-term vehicle driving vibration.
4. No independent inner ring design, directly take quenched pump shaft as rolling raceway, simplify pump overall assembly structure and reduce production cost of hydraulic pump manufacturers.
5. Low friction optimized needle roller surface superfinishing, low heat generation during continuous high-speed rotation, avoid grease failure and bearing ablation under pump long-time working state.
6. Special low-temperature anti-wear lithium grease pre-filled inside bearing, adapt vehicle cold start low temperature environment, maintain smooth rotation at minus forty degrees Celsius.
7. Unified interchangeable automotive pump standard size, fully compatible with global mainstream power steering pump F-803675 needle bearings, direct replacement without modifying pump shell and shaft structure.
8. Rich customizable options: Double lip rubber seal upgrade, stainless steel outer cup anti-rust variant, OEM laser marking on outer cup surface, neutral export anti-rust carton packaging, high temperature resistant synthetic grease filling for commercial vehicle heavy-duty pumps.

4. Application Scenarios

F-803675 high precision thin wall drawn cup needle roller bearing is miniature high-speed radial support spare part dedicated to automobile hydraulic pump system:

• Passenger car hydraulic power steering pump main rotary support bearing assemblies
• Light truck, van power assist hydraulic pump internal positioning bearing sets
• Automobile vacuum brake booster small auxiliary oil pump rotating components
• Miniature automotive hydraulic lift pump, window regulator micro hydraulic pump bearing parts
• New energy vehicle small cooling circulation pump high-speed limit needle bearing units
• Aftermarket maintenance replacement parts for automobile steering system hydraulic pumps

Aftermarket interchangeable F series automobile hydraulic pump drawn cup needle roller bearing Compact low-noise automotive power steering pump bearing solution for auto hydraulic pump manufacturers, automobile parts OEM factories and vehicle repair bulk procurement.

5. Why Choose GQZ Bearing

We have 25 years of mature professional manufacturing experience for F series automobile hydraulic pump drawn cup needle roller bearings including F-803675 power steering pump dedicated models.

Our F-803675 bearings adopt unified automotive hydraulic pump industry standard dimensions, consistent load and rotating performance parameters, cold stamping outer cup forming and GCr15 needle roller precision grinding standards, fully dimensionally interchangeable with imported original automobile pump needle bearings.

Complete OEM & ODM customized service system, supporting sealing structure upgrade, stainless steel material replacement, special high/low temperature grease filling and personalized outer cup marking demands.

Strict pre-delivery full quality inspection workflow: Steel raw material hardness test, needle roller automatic sorting screening, long-cycle automobile pump high-speed vibration rotation aging test, outer cup interference fit tolerance full batch inspection.

Professional automotive needle bearing technical team provides one-to-one radial load matching calculation, pump shaft quenching tolerance design and vehicle long-life lubrication maintenance guidance within 24 working hours.

Standardized miniature drawn cup needle bearing stamping & grinding production workshop provides competitive factory direct bulk wholesale price, stable long-term mass supply for global automobile hydraulic pump and auto spare parts purchasers.

We specialize in automobile hydraulic system thin wall needle roller bearings, strict needle roller mirror superfinishing and outer cup dimensional precision quality control, committed to long-term stable win-win cooperation with automotive miniature hydraulic transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, hardness and fatigue resistance inspection for cold rolled steel outer cup blanks and GCr15 needle roller blanks
• Precision high-speed stamping integral forming for thin drawn cup, multiple stress relief tempering cycles, ultra-precision mirror superfinishing grinding for needle roller surface
• Cylindrical needle roller high-temperature integral quenching, high-precision automatic sorting production line for dimensional grouping
• Complete bearing assembly clearance classification inspection, automobile special low-temperature anti-wear grease quantitative filling and sealing pressing procedure
• Targeted professional performance testing: F-803675 long-cycle automobile power steering pump high-speed vibration rotation aging test, vehicle alternating cold and hot temperature durability simulation test, low-noise running stability detection
• Comprehensive re-inspection of overall dimensional tolerance, outer cup roundness and wall thickness uniformity before anti-rust oil coating and export moisture-proof carton packaging.

Each production batch of F-803675 bearings undergoes automobile steering pump continuous high-speed cycle simulation test to guarantee stable compact low-noise rotary support performance for vehicle miniature hydraulic pump transmission systems.

7. Get A Quote Now

If you need F-803675 thin wall drawn cup needle roller bearings for automobile power steering hydraulic pump manufacturing, miniature hydraulic pump assembly and auto spare parts maintenance bulk matching, send your purchase demand directly.

Complete professional one-stop supporting services after sending inquiry:

• Formal official detailed quotation reply within 24 working hours
• One-to-one radial alternating impact load matching calculation, pump housing interference fit installation and vehicle wide temperature range lubrication technical support provided by professional automotive needle bearing engineers
• Customized bearing upgrade options including double lip dust-proof rubber seal modification and stainless steel anti-rust outer cup production
• Favorable factory direct bulk wholesale price for large quantity single model orders of F-803675

Please provide purchase quantity, actual working conditions (vehicle long-time high-speed vibration operation / wide cold-hot temperature change environment / narrow pump housing installation space limit demand) to obtain complete official quotation documents.

8. FAQ