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6005 Deep Groove Ball Bearing 25x47x12mm
When a 6004 bearing maxes out at 9.38 kN but a 6205 bearing at 52mm OD exceeds the housing bore, the 6005 bearing is the standard option at 25mm bore and 47mm OD. It delivers 10.1 kN dynamic load in the envelope of standard IEC frame motor end bells.
Key Specifications
- Sealing: Open, ZZ (non-contact metal shields), or 2RS (nitrile rubber contact seals). Three configurations for dust, moisture, and dry-high-speed environments.
- Speed and Load: 15,000 RPM (open) with 10.1 kN dynamic and 5.85 kN static load. 2RS rated to 12,000 RPM due to seal drag.
- Dimensions: 25mm bore x 47mm OD x 12mm width. 11mm radial cross-section distributes load across the ball complement.
- Temperature Range: -20C to 120C continuous with standard polyurea grease. 150C peak available with high-temperature grease on OEM request.
- Precision: ABEC-1 standard. ABEC-3 available for tighter bore tolerance and reduced runout. P6 (ISO class 6) on request for electric motor use.
For any inquiries, please contact with our Supporting Team at sales@yuanhecd.com.
| Model | 6005 |
| Type | Open / Shielded / Sealed |
| Bore (d) | 25 mm |
| OD (D) | 47 mm |
| Width (B) | 12 mm |
| Dynamic Load | 10.1 kN |
| Static Load | 5.85 kN |
| Max Speed | 15,000 RPM (Open) / 12,000 RPM (2RS) |
| ABEC | ABEC-1 / ABEC-3 |
Bore x OD x Width
25 x 47 x 12 mm
Dynamic Load Cr
10.1 kN
Static Load Cor
5.85 kN
Max Speed
15,000 RPM
Sealing
Open / ZZ / 2RS
Precision
ABEC-1/ABEC-3
Shielding and Lubrication
The 6005 bearing ships in three sealing configurations. Open bearings suit oil-bath gearboxes and pump housings where system lubrication provides continuous oil supply; this configuration reaches the full 15,000 RPM. ZZ metal shields press into the outer ring with a non-contact labyrinth gap, retaining factory grease while adding negligible friction. 2RS nitrile rubber seals contact the inner ring land, forming a positive barrier against moisture and fine particulate below 10 microns. The seal contact adds measurable drag, reducing the speed ceiling to 12,000 RPM. All sealed variants ship pre-greased for life with polyurea-thickened mineral grease; no field relubrication is required under normal operating conditions.
At 12mm width, the 6005 bearing has enough axial space for seal groove geometry that balances lip contact force against drag torque. For applications running above 12,000 RPM in clean environments, the ZZ configuration eliminates seal drag while maintaining grease retention. For outdoor equipment, washdown systems, or high-humidity indoor environments, the 2RS seal with its positive lip contact is the correct choice.
Performance
The 6005 bearing carries 10.1 kN dynamic load and 5.85 kN static load at 15,000 RPM in open configuration. Within the 6000-series, the 6005 bearing occupies the mid-range. Stepping up from the 6004 bearing (20x42x12mm, 9.38 kN dynamic), the 5mm larger bore yields a 7.7 percent load increase while the OD grows by only 5mm to 47mm. Moving to the 6006 bearing (30x55x13mm, 13.2 kN dynamic) adds 31 percent more capacity at the cost of 8mm additional OD and the next frame size in motor housings. For 25mm shaft applications in the 1 to 5 kW band, the 6005 bearing sits at the intersection of sufficient load margin and compact envelope.
Compared to the 6205 bearing (25x52x15mm, 14.0 kN dynamic), the 6005 bearing saves 5mm in OD and 3mm in width at 28 percent lower load capacity. When the housing bore is fixed at 47mm by legacy tooling or adjacent clearance, the 6005 bearing is the only standard 25mm-bore deep groove option that fits. The 6005 bearing also runs approximately 10 percent faster due to its smaller ball diameter and lower pitch-circle velocity. In electric motors where bearing OD sets the end-bell casting thickness, specifying the 6005 bearing over the 6205 bearing can reduce housing weight by 150 to 250 grams per unit.
OEM and Customization
Yuanhe manufactures the 6005 bearing to customer specifications beyond standard catalog items. Common OEM customizations include C3 radial internal clearance for electric motor applications where shaft thermal expansion reduces running clearance, C2 clearance for precision spindles, and high-temperature polyurea or fluorinated grease for continuous duty above 120C. Stainless steel (440C) rings and balls are available for food processing, marine, and chemical washdown environments. Cage options include glass-fiber-reinforced polyamide PA66, machined brass, or pressed steel. Non-standard bore tolerances, snap-ring grooves, and extended inner rings are available against drawing review. Standard lead time is 7 to 15 days. Send bearing dimensions or existing part number for a quote.
Applications
IEC-frame electric motors (IEC 90 and 100 series), industrial centrifugal pumps, conveyor head and tail pulleys, HVAC fan and blower shaft assemblies, light-duty gearbox input and output shafts, agricultural PTO shaft support bearings, textile machinery rollers, packaging equipment drives, woodworking spindle motors, hydraulic motor support bearings, fitness equipment rotating assemblies, and small wind turbine generator shafts where the shaft is 25mm and the housing bore is 47mm or less.
FAQ
Q1: What is the difference between 6005 bearing and 6205 bearing? +
Both have a 25mm bore, but the 6005 bearing measures 47mm OD x 12mm width while the 6205 bearing measures 52mm OD x 15mm width. The 6005 bearing is narrower and lighter, rated at 10.1 kN dynamic load. The 6205 bearing carries 14.0 kN dynamic load but occupies more space. Choose the 6005 bearing when the housing bore is constrained to approximately 47mm. Choose the 6205 bearing when load capacity governs and space permits.
Q2: What internal clearance options are available for the 6005 bearing? +
Standard clearance is CN (normal). C3 clearance is the most common OEM specification for electric motor applications where the shaft heats faster than the housing, reducing running clearance below the installed value. C2 clearance serves precision spindle assemblies requiring minimal radial play. C4 clearance supports high-temperature or heavy-interference-fit conditions. Specify the required clearance at the RFQ stage. Clearance values for each grade are documented in the inspection report shipped with every batch.
Q3: Can the 6005 bearing run at 15,000 RPM continuously? +
In open configuration with oil lubrication, yes: the 6005 bearing is rated for 15,000 RPM at its reference speed under light load. With grease lubrication, the limiting speed decreases to approximately 11,000 to 12,000 RPM. The 2RS sealed version is rated to 12,000 RPM due to seal lip friction heating. For continuous duty near the speed limit, contact Yuanhe for a bearing life calculation based on your actual load spectrum.
Q4: What materials are available for the 6005 bearing? +
Standard material is GCr15 chrome steel (equivalent to AISI 52100) through-hardened to 58 to 64 HRC on rings and balls. For corrosion-sensitive environments, 440C martensitic stainless steel is available; note that 440C reduces the dynamic load rating to approximately 8.1 kN. Ceramic (Si3N4) balls with steel rings serve high-speed or electrically insulated applications. Cage options include pressed steel (standard), glass-fiber-reinforced PA66, and machined brass.
