ZF TRANSMISSIONS 1272298946 NEEDLE BEARINGS KIT – Complete Bearing Set for ZF Gearbox Rebuilds
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- In-stock availability for urgent repairs.
- Free technical guidance on installation and compatibility
- P/N:1272298946
ZF TRANSMISSIONS 1272298946 NEEDLE BEARINGS KIT – Complete Bearing Set for ZF Gearbox Rebuilds
Product Overview
The ZF TRANSMISSIONS 1272298946 NEEDLE BEARINGS KIT is an OEM-approved bearing solution package for ZF transmission overhauls. This comprehensive kit contains all precision needle bearings required for main shaft and countershaft assemblies in ZF Ecomat and Ecolife automatic transmissions. Manufactured to exact ZF tolerances (±0.002mm), each bearing features chrome steel rollers and hardened races for extended service life in commercial vehicle applications.
Kit Includes:
✔ (12) Needle roller bearings (various sizes)
✔ (4) Thrust washers
✔ (2) Caged needle assemblies
✔ (1) Installation grease (50g)
✔ ZF-specified assembly manual
Key Benefits:
✔ Complete Bearing Solution – All required bearings in one kit
✔ OEM-Identical Quality – Meets ZF 1272298946 specifications
✔ Precision Engineering – ABEC-3 tolerance class
✔ Durable Construction – SUJ2 chrome steel components
✔ Application-Specific – For ZF 6HP/8HP transmission series
Technical Specifications:
Primary Bearing Specifications:
- Material:
- Rollers: SUJ2 chrome steel (ISO 683-17)
- Cages: Glass-fiber reinforced PA66
- Hardness: 60-64 HRC (rollers)
- Radial Clearance: C3 group (0.025-0.040mm)
- Lubrication: Pre-packed with ZF-approved grease
Detailed Components:
- NKIS 40x55x20 (Qty: 3)
- Dynamic load: 42.5 kN
- Static load: 60.0 kN
- AXK 1028 thrust washers (Qty: 4)
- Thickness: 2.80mm ±0.01
- K 35x42x20 caged bearings (Qty: 2)
- Roller diameter: 3mm (±0.001)
OEM Reference: ZF 1272298946
Professional Installation Guide:
Pre-Installation:
- Verify shaft/housing dimensions with micrometer
- Clean all components with solvent
- Organize bearings per assembly sequence
Installation Tools Required:
- Bearing heater (max 120°C)
- Hydraulic press with mandrel set
- Torque wrench (50-300Nm range)
Step-by-Step Installation:
- Heat bearings to 80-100°C for interference fits
- Install thrust washers with marked side outward
- Press bearings squarely using force limiter
- Torque shaft nuts to specified values:
- Mainshaft: 250Nm +90°
- Countershaft: 180Nm +60°
Post-Installation:
- Verify free rotation (hand torque <2Nm)
- Check axial play (0.05-0.15mm)
- Perform 500km run-in at reduced load
Packaging & Shipping
By Express : Suitable for sample order or <50 KG Fast:3-10 days High shipping cost Door to door service
By Air : Suitable for >50 KG Fast: 3-7 days Lower than express cost Airport to airport service
By Sea: Suitable for >300 KG Lower cost port to port service
As a leading supplier and dealer of ZF parts, we provide genuine components to maintain the integrity and efficiency of your gearbox system. Trust in our expertise and quality assurance to keep your ZF gearbox running smoothly.
| Installation Tips | Surface prep: Degrease with ZF Cliclean 3 solvent； Gasket application: Use Loctite 518 in continuous 1.5mm bead；； Alignment: Install using factory alignment pins (ZF tool B40 5003 recommended)；； Torque sequence:Initial: 12Nm star pattern—–Final: 28Nm + 90° angle torque；；；； Post-install: Pressure test at 2.5 bar before fluid fill |
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