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NMB 1 Row Ball Bearing, 3 mm ID, 8 mm OD, Shielded, Flanged, Martensitic Stainless Steel, Double Row DDRF830ZZRA5P24LY121
Specifications
| Country of Origin | Thailand |
|---|---|
| Brand | NMB |
| Model | DDRF830ZZRA5P24LY121 |
| Outside diameter | 8mm |
| Inside Diameter | 3mm |
| Number of Rows | 1 |
| Ball Material | Stainless Steel |
| Internal Clearance | CN |
| End Type | Shielded |
| Bore Type | Parallel |
| Bearing Type | Double Row Deep Groove Ball |
| Cage Material | Steel |
| Race Width | 4mm |
| Race Material | Martensitic Stainless Steel |
| Static Load Rating | 176kN |
| Race Type | Flanged |
| Dynamic Load Rating | 553N |
| Flange Outside Diameter | 9.5mm |
| NMB DDR-830ZZRA1P25LY121 1 Row Ball Bearing - 3 mm ID, 8 mm ODBrand | NMB |
Key Features
- Single row, double deep groove construction ensures reliable performance.
- 3 mm inner diameter and 8 mm outer diameter fit small-scale assemblies.
- Shielded ends safeguard the bearing from contaminants and retain lubrication.
- Martensitic stainless steel races offer corrosion resistance and strength.
- Steel cage maintains ball spacing for smooth rotation.
- Flanged race type allows easy and secure mounting.
- Dynamic load rating of 553 N handles precision instrumentation requirements.
- Static load rating of 176 kN supports substantial operating loads.
Product Description
The NMB DDRF830ZZRA5P24LY121 is a precision-engineered, single-row deep groove ball bearing designed for demanding industrial and instrumentation applications. With an inner bore diameter of 3 mm and an outer diameter of 8 mm, this bearing is tailored for compact mechanical assemblies where high rotational accuracy is essential.
This model features a flanged race, enabling secure placement and mounting within rotary units and instrumentation housings. The shielded design on both ends provides reliable protection against dust, debris, and external contaminants, while also retaining lubricants, ensuring prolonged operational life and smooth rotation.
Martensitic stainless steel is used for the race material, delivering exceptional corrosion resistance and strength. The balls themselves are also made from stainless steel, minimizing wear and maintaining performance between maintenance cycles. A steel cage keeps the balls evenly spaced, supporting smooth movement at both low and high speeds.
Depending on load conditions and rotational requirements, the bearing can handle a static load of up to 176 kN and a dynamic load rating of 553 N, making it suitable for delicate yet demanding use cases such as chart recorders, precision instruments, small motor drives, and other accuracy-critical devices.
Manufactured to ABEC 5 standards, this bearing is engineered for close tolerances and reliable rotational precision. The CN internal clearance provides balanced performance for radial and axial loads.
The bearing's mounting flange diameter is 9.5 mm for compatibility with standard housings. The parallel bore type and double metallic protection shields further contribute to durability and ease of installation.
Common industrial uses include laboratory devices, metrology equipment, automation components, and any machinery requiring high-quality miniature rotary bearings. Explore more precise bearings and related motion components from NMB in the Ball Bearings section.
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Frequently Asked Questions
This bearing has a dynamic load rating of 553 N, making it suitable for various applications requiring precision.
The races are made from martensitic stainless steel, which provides corrosion resistance and strength.
The static load rating of this ball bearing is 176 kN, allowing it to support substantial operating loads.
The flanged race type allows for easy and secure mounting within rotary units and instrumentation housings.
This model features a CN internal clearance, providing balanced performance for radial and axial loads.
The flange outside diameter is 9.5 mm, ensuring compatibility with standard housings.
It uses a steel cage that maintains ball spacing for smooth rotation and performance.
Common applications include laboratory devices, metrology equipment, and automation components requiring high-quality miniature rotary bearings.
The race width of this model is 4 mm, contributing to its overall design and performance characteristics.
This model has shielded ends that protect against contaminants and retain lubrication, ensuring prolonged operational life.
It is manufactured to ABEC 5 standards, ensuring close tolerances and reliable rotational precision.
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