DKFL HK 10-12 Needle Bearing
The HK 10-12 needle roller bearing by DKFL is one of the most compact and widely used components in the bearing family. Simply put, its job is to allow a metal rod (a shaft) to rotate smoothly and easily inside it, even under significant pressure and load. It provides smooth rotation while ensuring the component remains durable.
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Product Detail
Needle Roller Bearing HK 10-12 by DKFL
Drawn cup needle roller bearing for space-constrained applications | 10mm Bore Diameter
📘 Introduction to the HK 10-12 Needle Bearing
The HK 10-12 needle roller bearing by DKFL is one of the most compact and widely used components in the bearing family. Simply put, its job is to allow a metal rod (a shaft) to rotate smoothly and easily inside it, even under significant pressure and load. It provides smooth rotation while ensuring the component remains durable.
Why is it called "Needle"? Instead of the spherical balls found in standard bearings, this bearing uses thin, needle-like rollers. This design allows for a greater number of rollers to fit into a small space, enabling a compact part to support immense weight and pressure. This is the main reason for the popularity of needle roller bearings in the industry: small, yet powerful.
The numbers in the product name have a simple meaning: 10 indicates the diameter of the shaft that fits inside the bearing is 10 millimeters. The 12 represents the width (thickness) of the component in millimeters. The HK designation refers to a drawn cup needle roller bearing with a thin outer ring and no inner ring; the needles roll directly against the hardened shaft, making it more compact and economical.
DKFL, a well-known brand in the bearing market, manufactures this model using high-quality hardened steel. Both the needles and the outer shell are highly resistant to wear and fatigue. The result is a low-maintenance component that performs quietly and reliably for years.
📐 Specifications
| Specification | Symbol | Value |
|---|---|---|
| Shaft Diameter | Fw | 10 mm |
| Outer Diameter | D | 14 mm |
| Width (Thickness) | C | 12 mm |
| Bearing Type | - | Needle Roller, Drawn Cup, No Inner Ring |
| Material | - | Hardened Chrome Steel |
| Lubrication | - | Pre-lubricated, Ready to Install |
| Brand | - | DKFL |
⚙️ Why is the HK 10-12 a Great Choice?
🔹 1. Compact yet Powerful
Imagine you need a smooth rotation solution for a 10mm shaft, but the space available is extremely limited. This is exactly where the HK 10-12 shines. Because the needle rollers occupy less space than spherical balls, this small component can withstand high levels of pressure and weight.
🔹 2. Low Maintenance and Economical
Since this bearing has no separate inner ring and runs directly on the machine shaft, it is more cost-effective and requires fewer parts for assembly. Note: The shaft the bearing runs on must be smooth and hardened; a soft shaft will wear out over time, leading to bearing play.
🔹 3. Smooth and Quiet Operation
The needles inside are arranged with precise and uniform spacing, which allows for smooth, vibration-free rotation. This makes it the top choice for devices where operational noise or vibration cannot be tolerated.
🔹 4. Easy Installation
Even if you aren't an expert, installing this is straightforward. Simply position it in place and press it in fully using a controlled, gentle force (preferably using a socket or suitable tube on the outer shell). Avoid striking the needles directly with a hammer, as this will damage them.
📊 Comparison with Related Models
| Model | HK 10-10 | HK 10-12 | HK 10-14 |
|---|---|---|---|
| Shaft Diameter | 10 mm | 10 mm | 10 mm |
| Load Capacity | Medium | High | Very High |
| Best For | Light-duty devices | General purpose & Versatile | Heavier loads |
💡 Simple tip: The higher the second number, the wider the bearing, which increases its load capacity. The model 12 is the middle ground and the most versatile of the three.
🛠 Buying and Installation Tips
- Measure precisely before purchasing: Use a ruler or caliper to measure the shaft diameter. If it is 10mm, the HK 10-12 is the correct choice.
- Check shaft surface: The shaft must be clean, smooth, and free of scratches or rust. A damaged shaft will significantly shorten the bearing's lifespan.
- Use proper tools: Apply pressure to the outer shell (not the needles) during installation to keep the part intact.
- Tight fit: The bearing must sit firmly in place without vibration. If it is loose, it will cause clicking noises and premature failure over time.
- Periodic lubrication: Check your bearing's lubrication occasionally. This simple step can significantly extend the life of the component.
🏭 Applications
Small Electric Tools
Such as hand drills, small grinders, and pneumatic tools.
Conveyors & Production Lines
Small wheels for packaging lines and material handling equipment.
Automotive Parts
Various pumps, alternators, and small rotating car parts.