4203BTNG N YRLN5 Double Row Angular Contact Ball Bearing 17x40x16mm Two Way Axial Load

1. Product Overview

4203BTNG N YRLN5 is double row angular contact ball bearing, standard dimension 17mm inner bore × 40mm outer diameter × 16mm total width.
Suffix mark explanation:

• BTNG: Glass fiber reinforced polyamide cage, low friction, high temperature resistance, stable running at medium and high speed
• N: Outer ring with snap ring groove for axial positioning circlip installation
• YRLN5: Special clearance group with optimized internal play, suitable for equipment with slight thermal expansion and vibration working condition

Double row symmetrical ball track structure, capable of bearing large radial load and bidirectional axial thrust load at the same time, can replace two single row angular contact bearings paired installation, save assembly space and simplify installation procedure. All rings and steel balls adopt fully quenched GCr15 bearing steel, ultra-precision ground raceway to guarantee low noise and long service life. Widely used for small and medium motors, textile machinery spindles, packaging equipment, small gearboxes, fan rotating shafts and general precision transmission equipment requiring two-way axial positioning.

2. Technical Specifications

3. Core Advantages

1. Double row integrated symmetrical design, simultaneously bear radial load and bidirectional axial load, eliminate the need for two single row bearing matching assembly, reduce housing processing cost and assembly time.
2. BTNG polyamide reinforced plastic cage, light weight, low friction coefficient, good self-lubricating performance, reduce high-speed operation noise and heat generation.
3. N outer ring snap ring groove structure, supporting standard circlip for simple axial limiting, no extra shoulder processing needed on equipment housing.
4. YRLN5 special clearance group, moderate internal play, adapt to medium temperature rise and slight vibration operating environment, avoid bearing clamping failure caused by thermal expansion.
5. Ultra-precision super-finishing grinding inner and outer raceways and steel ball surface, smooth rolling contact, low vibration, stable continuous medium-high speed operation.
6. Fully quenched high hardness GCr15 steel, excellent contact fatigue resistance and wear resistance, effectively extend service life under cyclic composite load.
7. Standard metric interchangeable overall dimension, fully compatible with global 4203BTNG N YRLN5 bearings, direct replacement without modifying shaft and housing structure.
8. Rich customizable options: P0/P6/P5 precision grade, metal ZZ/2RS sealing, stainless steel material upgrade, OEM laser marking, neutral export anti-rust carton, special high/low temperature grease filling.

4. Application Scenarios

4203BTNG N YRLN5 double row angular contact ball bearing with snap ring groove is compact composite load rotary spare part for 17mm shaft with bidirectional axial positioning demand:

• Small & medium industrial drive motor rotor supporting assemblies
• Textile machine high-speed spindle and yarn winding transmission units
• Light packaging machinery, labeling machine rotating roller support positions
• Small size light-duty gearbox input shaft bearing points
• Centrifugal small fan, air blower rotating shaft assemblies

Aftermarket interchangeable 4200 series double row angular contact ball bearing
Compact bidirectional thrust bearing solution for motor manufacturers, textile machinery OEM factories and light industrial equipment bulk maintenance procurement.

5. Why Choose GQZ Bearing

• We have 25 years of professional production experience for 4200 series double row angular contact ball bearings including 4203BTNG N YRLN5.
• Our 4203BTNG N YRLN5 bearings follow international unified standard dimensions, consistent load rating, contact angle, cage material and YRLN5 clearance tolerance standards, fully interchangeable with global standard bearings.
• Complete OEM & ODM customized service, supporting multi-precision grades, various sealing structures, special clearance adjustment and temperature-resistant grease filling requirements.
• Strict pre-delivery quality control process: GCr15 raw material composition and hardness test, steel ball automatic sorting screening, long-cycle high-speed rotation aging test, snap ring groove dimensional full inspection.
• Professional angular contact bearing technical team provides one-to-one radial-axial combined load calculation, shaft housing fit tolerance guidance and circlip installation tips within 24 working hours.
• Standardized precision bearing production workshop provides competitive factory direct bulk wholesale price, stable long-term supply for global motor, textile and light machinery spare parts purchasers.
• We focus on double row angular contact ball bearings with N snap ring groove, stable BTNG plastic cage production and customized clearance group processing, pursuing long-term win-win cooperation with precision transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, internal defect and hardness inspection for GCr15 inner ring, outer ring and steel ball blanks
• Precision turning processing, multiple stress relief tempering, ultra-precision superfinishing grinding for double row angular contact raceway surfaces and N snap ring groove
• Steel ball high temperature quenching, mirror polishing and high precision automatic sorting production line
• BTNG polyamide cage injection molding forming, cage gap inspection, pre-filled anti-wear grease treatment process
• Targeted performance testing: 4203BTNG N YRLN5 long cycle high-speed temperature rise rotation aging test, bidirectional axial thrust fatigue wear detection, clearance group stability inspection
• Comprehensive re-inspection of overall dimensional tolerance, raceway surface finish and snap ring groove precision before anti-rust oil coating and export moisture-proof carton packaging.

Each production batch of 4203BTNG N YRLN5 bearings undergoes motor spindle simulation cycle rotation test to ensure stable low-noise bidirectional composite load support performance for 17mm shaft precision transmission systems.

7. Get A Quote Now

If you need 4203BTNG N YRLN5 17x40x16 double row angular contact ball bearings with outer ring snap ring groove for motor/textile machinery manufacturing, transmission assembly and light equipment maintenance bulk matching, send your purchase inquiry directly.
Complete professional supporting services after inquiry submission:

• Official formal quotation reply within 24 working hours
• One-to-one radial and bidirectional axial combined load calculation, shaft housing fit tolerance and circlip installation technical support from professional bearing engineers
• Custom bearing performance upgrade options including multi-precision grades, different sealing types and special clearance groups
• Favorable factory direct bulk wholesale price for large-volume 4203BTNG N YRLN5 single-model orders

Please provide purchase quantity, working conditions (medium high speed / slight vibration / continuous operating temperature) to obtain complete official quotation documents.

8. FAQ