GQZ HTFJ17-4G5S Separable Single Row Cylindrical Roller Bearing 17×39×12mm For Automobile CVT Gearbox Countershaft

HTFJ17-4G5S (full part number ZA-HTFJ17-4G5S2CG-01) is a dedicated single-row separable cylindrical roller bearing exclusively developed for NSK CVT automobile transmission countershaft input assembly. It adopts open separable inner and outer ring structure, outstanding heavy radial load capacity, stable high-speed rotation under frequent variable torque shifting conditions, widely used for Japanese passenger car CVT gearbox aftermarket maintenance.

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Model: HTFJ17-4G5S

Boundary dimension: d17mm × D39mm × B12mm

Net weight: 74g

Structure: Open type, separable inner ring + outer ring

Cage: Precision stamped steel cage

Material: GCr15 high carbon chrome bearing steel

Precision grades: P0 / P6 / P5

Suffix meaning: G5S = special clearance & optimized surface finish for CVT high-speed working condition

Full load capacity datasheets and CAD drawings available on request

1. Separable inner & outer ring design, easy disassembly and single-piece replacement to cut spare part inventory cost
2. Compact small-size layout perfectly matches limited installation space of CVT intermediate shaft
3. Super-finished roller and raceway surface reduces friction heat, vibration and shifting noise during high-speed operation
4. Optimized internal clearance (G5S specification) adapts continuous variable speed torque impact of CVT gearbox
5. High hardness quenched steel resists abrasion and fatigue under long-hour frequent shifting cycles
6. Fully interchangeable with original NSK ZA-HTFJ17-4G5S2CG-01 OEM bearing for CVT overhaul
7. Custom low-temperature transmission grease, anti-rust coating and OEM laser marking supported
   👉 Extend CVT gearbox service cycle and reduce vehicle transmission breakdown rate

Japanese passenger car CVT continuously variable transmission input countershaft

Light vehicle automatic transmission auxiliary support shaft

Small high-speed rotary machinery with compact installation space

Mini industrial reducer and precision power transmission assemblies

25+ years professional manufacturer of special automotive CVT cylindrical roller bearings

Exported to over 50 countries worldwide

Strict dimensional tolerance, hardness and clearance matching inspection before delivery

24-hour fast technical reply and CVT gearbox installation guidance

Stable bulk stock supply for auto spare parts and repair distributors

👉 We focus on quality, reliability, and long-term partnership

GCr15 raw material metallurgy & hardness inspection

Precision superfinishing grinding for inner raceway, outer raceway and rollers

Complete quenching & tempering heat stabilization process

High-speed continuous rotation temperature rise aging test

Special G5S clearance calibration and full dimensional tolerance inspection

Looking for HTFJ17-4G5S cylindrical roller bearings for CVT gearbox repair?

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• Fast quotation within 24 hours
• CVT transmission model matching suggestion
• Custom low-friction transmission grease options
• Competitive factory price

Contact our sales team for full technical datasheets and formal quotation