Neodymium Rubber Coated Magnet with Counterbore (NRBD Series)
This is a type of rubber encapsulated pot magnet with high-performance neodymium iron boron (NdFeB) magnetic core. A central counterbore through-hole is reserved on the magnet body, which allows flat-head screws to pass through for flush mounting. Unlike threaded versions (internal/external thread), it uses penetrating screws for direct fixation, leaving no protruding studs or bolts after installation.
FOB Price: US $0.1 – 10 / Piece | Get Latest Price
Min.Order Quantity: 100 Piece
Supply Ability: 500,000 Piece/Month
Port: Shanghai/Hangzhou/Ningbo
Payment Terms: T/T, Western Union, Paypal
Delivery Time: About 7-25 days
Quick Details
| Place of Origin: Zhejiang, China (Mainland) | Brand Name: SYM |
| Product Name: Neodymium rubber coated magnet with counterbore (NRBD series) | Type: Permanent magnets |
| Components: Neodymium magnets, steel plate & TPR rubber | Coating: Rubber coated |
| Rare Earth Magnet Material: Neodymium Iron Boron | Size: Shown in the technical data chart below or customized |
| Magnetization Direction: through thickness direction |
Technical Data for Neodymium Rubber Coated Magnet with Counterbore (NRBD Series)
| MODEL | D (mm) | d1 (mm) | d2 (mm) | H (mm) | Attraction (Kgs) | Net Weight (gs) |
|---|---|---|---|---|---|---|
| NRBD22 | 22 | 4.5 | 8.6 | 6 | 2 | 8 |
| NRBD34 | 34 | 4.5 | 8.6 | 8 | 6 | 20 |
| NRBD43 | 43 | 4.5 | 8.6 | 6 | 9 | 27 |
| NRBD57 | 57 | 5.5 | 10.6 | 8 | 18 | 77 |
| NRBD66 | 66 | 6.5 | 12 | 8 | 20 | 100 |
| NRBD88 | 88 | 8.5 | 19 | 8.5 | 42 | 182 |
Core Advantages & Main Application Fields
• Advantages
1. Flush & Flat Installation
Flat-head screws fit perfectly into the counterbore cavity. The magnet sits tightly and evenly against mounting plates with no raised parts, saving space and presenting a neat appearance.
2. No Damage to Workpiece Surfaces
The soft rubber outer layer avoids scratches, paint peeling and indentations on car paint, stainless steel, aluminum alloy and polished metal panels. It leaves zero traces after removal.
3. Anti-slip & Vibration Resistance
High-friction rubber prevents sliding on vertical metal surfaces, stable enough for equipment under continuous vibration.
4. Waterproof & Anti-corrosion
Sealed rubber layer blocks moisture, splash water and light salt mist, protecting the inner NdFeB core from oxidation and rust for long service life in damp workshops or semi-outdoor environments.
5. Shock-absorbing & Low Noise
Rubber cushion eases impact when attaching to metal, preventing brittle neodymium magnets from cracking and lowering collision noise.
6. Simple & Flexible Assembly
Just run flat-head screws through the counterbore hole and fasten onto brackets, frames or equipment directly; no nuts or threaded adapters needed.
• Applications
1. Machinery Equipment: Fix sensors, positioning jigs and small tool brackets on machine tool frames
2. Automotive Industry: Concealed installation of inspection lights, camera mounts and warning signs on vehicle bodies
3. Advertising & Display: Flat-mounted light boxes, acrylic signs and retail display racks on iron walls
4. Hardware & Furniture: Hidden magnetic fixing for cabinet fittings, lamp holders and storage supports
5. Construction: Temporary positioning of measuring tools and safety markers on steel beams
Packaging for Rubber Coated Magnets
Shipping Methods for Neodymium Rubber Coated Magnet with Counterbore (NRBD Series)
International Express (TNT, DHL, FedEx, UPS, etc), Air, Sea.
a: If the weight is under 40kgs, we recommend to send it in shielding boxes by Express.
b: If the weight is between 40-100kgs, it can be sent by Express or Air.
c: If the weight is over 100kgs, we recommend to ship them by Sea.
Pot Magnets & Magnetic Hooks Series
For more details about neodymium rubber coated magnet with counterbore (NRBD series), please send message to us or email to sales@sinnyuan.com. We will reply to you as early as possible.
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