Koyo 6236 6238 6240 Deep Groove Ball Bearing
Minimize downtime and maximize productivity with the reliable Koyo Deep Groove Ball Bearing lineup, including models 6236, 6238, and 6240. These precision-engineered bearings deliver long life and high-speed performance, ensuring smooth operation even under demanding conditions.
- Grease or oil lubrication options adapt to your specific application needs, reducing maintenance hassle
- Available in precision ratings from P0 to P4 with C0/C2/C3 clearance options for tailored performance
- Single-row radial design with 0° contact angle provides optimal load distribution and stability
- Rich stock availability means fast shipping, so you can keep your operations running without delay
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 6236, 6238, 6240 |
| Bearing Type | Deep Groove Ball Bearing |
| Specification | 180×320×52mm, 190×340×55mm, 200×360×58mm |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Clearance | C0, C2, C3 |
| Load Direction | Radial Bearing |
| Rows Number | Single |
| Contact Angle | 0° |
| Aligning | Non-Aligning Bearing |
| Separated | Unseparated |
| Feature | Long Life, High Speed, Low Noise |
| Trademark | KOYO |
| Origin | Japan |
| HS Code | 8482102000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | Rotary shafts, conveyor systems, gearboxes |
| Automotive | Transmission components, wheel hubs |
| Steel & Metallurgy | Rolling mill equipment, material handling systems |
| Construction | Heavy-duty pumps, hydraulic motors |
Need Reliable Koyo 6236, 6238, 6240 Deep Groove Ball Bearings? Here’s What You Should Know
Finding the right deep groove ball bearings for high-speed industrial applications can be challenging. Mismatched clearances or poor precision often lead to premature wear, while limited stock availability from single-brand suppliers causes costly production delays. Many buyers struggle with navigating the繁杂的 international standards—especially when trying to replace worn bearings quickly.
Engineered for Consistent Performance in Demanding Environments
Our Koyo 6236, 6238, and 6240 deep groove ball bearings address these challenges head-on. As a专业轴承供应商 with ISO 9001-certified quality processes, we ensure each bearing meets strict dimensional and hardness requirements. With rich stocks available, we eliminate long lead times, whether you need a single unit for emergency replacement or bulk orders for scheduled maintenance. These bearings excel in high-speed rotary applications like industrial fans, electric motors, and machine tool spindles, where low noise and extended service life are critical.
Optimal Performance in High-Speed, Radial Load Applications
Designed for radial load dominance with a contact angle of 0°, these deep groove ball bearings thrive in applications where rotational speed exceeds 3,000 RPM. The single-row design and unseparated construction provide structural stability, making them ideal for continuous operation in machinery like centrifugal pumps and textile equipment. Their non-aligning特性 means they perform best in systems with minimal shaft misalignment, ensuring consistent load distribution across the bearing races.
Key Engineering Features That Impact Reliability
The bearing steel construction delivers exceptional surface hardness and wear resistance, critical for withstanding the stresses of high-torque industrial environments. Precision ratings from P0 (standard) to P4 (high precision) allow customization based on application needs—P5 or P4 grades are recommended for CNC machines where tight dimensional tolerances prevent vibration-induced errors. Clearance options (C0, C2, C3) accommodate thermal expansion: C3 clearance is particularly useful in high-temperature applications like steel mill conveyors, where heat causes shaft expansion. The grease or oil lubrication flexibility lets users optimize for either maintenance intervals (grease) or high-speed cooling (oil).
Why Choosing the Right Bearing Lowers Total Cost
Investing in quality deep groove ball bearings reduces long-term operational costs significantly. Inferior bearings with substandard material hardness typically fail within 30% of the expected service life, leading to unplanned downtime and replacement labor expenses. Our bearings, built to Koyo’s stringent standards, leverage ISO 281 fatigue life calculations to ensure predictable performance, minimizing the risk of catastrophic equipment failure. Proper clearance selection further extends life by preventing internal stress, while high-precision grades reduce energy consumption by minimizing friction—a critical factor in continuous-operation facilities.
Quality You Can Rely On
Every bearing undergoes rigorous inspection, from raw material verification to final dimensional and hardness testing, ensuring compliance with international standards. We provide a manufacturer-backed warranty covering material and workmanship defects, with clear terms outlined in each order. Our global supply chain includes both international brands like Koyo and domestic alternatives, allowing us to source exactly to your specifications. With rich stock availability, we can fulfill most orders within 48 hours, supporting your maintenance schedules and production deadlines.
Packaging & Shipping
- Standard packaging in cartons with palletization for bulk orders
- Available from stock for immediate dispatch
- Flexible shipping options: sea freight for large quantities, air freight for urgent orders
- Low minimum order quantity supported, ideal for both maintenance teams and OEM production
Get Pricing for Your Koyo Deep Groove Ball Bearing Requirements
Whether you need the Koyo 6236, 6238, 6240, or any other deep groove ball bearing model, we can provide competitive pricing and fast delivery. Simply share the bearing model, required quantity, and destination, and our team will prepare a detailed quote within 24 hours. Early order confirmation ensures priority stock allocation, especially for high-demand industrial sizes.
Frequently Asked Questions
Q: Can you supply other bearing brands or models besides Koyo?
A: Yes, we support procurement of all major international brands (SKF, NSK, NTN, NACHI, etc.) and domestic alternatives, as well as custom specifications.
Q: How do I confirm if the 6236/6238/6240 bearings fit my equipment?
A: Provide your equipment’s shaft diameter, housing bore, and required width, and our technical team will cross-verify dimensions against your application needs.
Q: What is your warranty policy for these bearings?
A: We offer a standard warranty covering manufacturing defects; specific terms are detailed in each sales contract and typically range from 6 to 12 months.
Q: What is the minimum order quantity for these Koyo bearings?
A: We accept low minimum orders, including single units for emergency replacements, with volume discounts available for bulk purchases.
Q: How quickly can you ship after order confirmation?
A: In-stock bearings are shipped within 1-2 business days; delivery times depend on shipping method (express, air, or sea).
Q: Do you offer OEM/ODM customization for deep groove ball bearings?
A: Yes, we support custom bearing production based on client-provided drawings, including material specifications, precision grades, and special lubrication requirements.
Ready to order or need a quote?
Send the bearing model, dimensions
- Product Name
- Koyo 6236 6238 6240 Deep Groove Ball Bearing
- Category
- Deep Groove Ball Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Deep Groove Ball Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
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Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
The engineering partner advantage
Get a custom quote for
Koyo 6236 6238 6240 Deep Groove Ball Bearing
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