The KOYO 6001 2RS (12x28x8 mm) sealed deep groove ball bearing offers a reliable, low-maintenance solution for machinery where protection from contamination and long service life are critical. With its compact design, sealed construction, and precision build, it’s an excellent component for motors, pumps, gear systems, and industrial assemblies.
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Overview
The KOYO 6001 2RS is a single-row, sealed deep groove ball bearing with dimensions 12 mm (inner bore) x 28 mm (outer diameter) x 8 mm (width). The “2RS” indicates rubber seals on both sides, which protect the internal components from dust, moisture, and contamination. This design enables long life and low maintenance even in less favorable conditions.
This bearing is ideally suited for electric motors, pumps, gearboxes, HVAC units, robotics, agricultural equipment, and general industrial machinery. Its sealed design is especially valued in environments where contaminants are present or where maintenance accesses are limited.
Key advantages include:
Sealed protection: 2RS sealing reduces ingress of particles and retains lubricant internally.
Low friction, smooth operation: The deep groove geometry provides efficient rolling behavior, good speed capability, and stability.
Compact standardized size (12x28x8 mm): Easy to fit in many mechanical systems without major redesign.
Pre-lubricated and maintenance friendly: Because it's factory greased and sealed, downtime for re-lubrication is minimized.
Reputable brand and reliability: KOYO’s manufacturing standards ensure consistent quality and performance.
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| Feature | Value |
|---|---|
| Bore (d) | 12 mm |
| Outer Diameter (D) | 28 mm |
| Width (B) | 8 mm |
| Bearing Type | Deep groove ball bearing (single row) |
| Seal Type | 2RS — rubber seals on both sides |
| Load Direction | Primarily radial, limited axial capacity |
| Lubrication | Factory greased, sealed for life |
| Rated Speed (grease) | ~17,000 rpm (typical for sealed versions) |
| Dynamic Load Rating (Cr) | ~6.40 kN (typical for 6001 series sealed) |
| Static Load Rating (C0r) | ~2.40 kN |
| Material & Construction | Chrome steel standard bearing quality |
Performance Note: The sealing introduces a modest increase in friction compared to open bearings, but in typical applications this impact is negligible. The sealed design excels where contamination or maintenance difficulty is a concern.
Installation & Best Practices
Mount in a clean environment using press or sleeve methods; avoid direct impact to raceways or seals.
Do not remove or damage seals during handling — intact seals are essential for longevity.
Ensure proper shaft/housing fits and alignment to avoid preload or misalignment stress.
Monitor operating temperature and vibration: spikes may indicate issues like misalignment, contamination, or seal deterioration.
Avoid exceeding recommended speeds and loads as specified by KOYO.
Q1: What does “6001 2RS” denote?
“6001” is the series representing a 12x28x8 mm dimension; “2RS” signals that the bearing has rubber seals on both sides.
Q2: Can this bearing handle axial loads?
While designed primarily for radial loads, it can tolerate light axial loads in either direction under standard usage.
Q3: What is the speed capacity of this sealed version?
Typical maximum safe speed is around 17,000 rpm, depending on lubrication and load conditions.
Q4: Is lubrication required before installation?
No — the bearing is pre-lubricated and sealed, ready for immediate use.
Q5: Is fast delivery available?
Yes — from our base in Lublin:
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing
Data sheet