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Needle Bearing
K32X40X25–K40X50X18 Needle Roller Bearings – High-Precision, Low-Friction OEM Factory
Basic Info
| Inner Diameter | 32 mm |
|---|---|
| Outer Diameter | 40 mm |
| Thickness | 25 mm |
| Type | Needle Roller Bearing, Closed, Without Inner/Outer Ring |
| Material | |
| Lubrication | Grease or Oil |
Introduction
High-precision radial needle roller bearing (Model K32X40X25) made of premium bearing steel. Compact design without inner/outer rings saves space and weight. Suitable for high-load, low-speed applications. Available in precision grades P0–P2 and clearances C0–C4. Fast delivery (3–7 days) and OEM/ODM support.7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Key Specifications & Advantages of SKF-Grade Needle Roller Bearings
| Description | Core Value |
|---|---|
| Model Range | K32X40X25, K35X40X27, K35X46X20, K38X45X21, K40X50X18 — precision-matched for compact radial load applications |
| Load Capacity | High radial load rating due to optimized needle density and hardened bearing steel (GCr15 equivalent) |
| Design Type | Outer-ring-free & inner-ring-free configuration — saves space, reduces weight, ideal for cam followers & gearboxes |
| Precision Grades | Available in P0, P6, P5, P4, P2 — meets SKF ABEC-1 to ABEC-9 equivalency for OEM-grade accuracy |
| Clearance Options | C0 (standard), C3 (increased), C4 (high-temp) — ensures thermal stability across operating conditions |
| Lubrication Flexibility | Pre-greased or oil-lubricated compatible — extends service life up to 2× vs. standard non-sealed alternatives |
| Origin & Compliance | Manufactured in ISO 9001-certified Chinese facilities; HS Code 8482102000 — customs-ready, CE/ROHS compliant |
| Differentiator vs. Generic Brands | Stricter dimensional tolerance (±0.005 mm), 30% higher dynamic load rating, full traceability per batch |
| Typical Applications | Automotive transmissions, hydraulic pumps, textile machinery, agricultural equipment, industrial actuators |
| Quality Assurance | 100% noise-tested, hardness-verified (HRC 60–64), and vibration-checked — zero defect shipment guarantee |
Engineered for reliability where space is tight and loads are high — these needle bearings deliver SKF-level performance at competitive trade pricing. Trusted by Tier-1 suppliers across EU and ASEAN markets. Need volume pricing, custom clearance specs, or technical support? Send your inquiry now — our engineering team replies within 2 business hours.
Product Summary
- Product Name
- K32X40X25–K40X50X18 Needle Roller Bearings – High-Precision, Low-Friction OEM Factory
- Category
- Needle Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Needle Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
K32X40X25–K40X50X18 Needle Roller Bearings – High-Precision, Low-Friction OEM Factory
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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