NTN 6202UC3 Bearing Nos

( Brand: Ntn ), ( Manufacturer Part Number: 6202UC3 ), ( Part Type: Bearing )

Review NTN Bearing Nos

The **NTN 6202UC3 bearing** is a precision-engineered single-row deep groove ball bearing designed for high-performance applications where reliability, durability, and minimal friction are critical. Part of NTN s renowned **UC3 series**, this bearing incorporates a **ceramic hybrid design**, combining high-quality steel inner and outer rings with **silicon nitride (Si N ) ceramic balls**, which significantly enhances its operational efficiency and longevity. The **6202 designation** indicates a standard bore size of **25 mm (1 inch)**, making it suitable for a wide range of industrial, automotive, and machinery applications, including electric motors, pumps, conveyors, and high-speed machinery. The **UC3 variant** distinguishes itself through its **optimized cage design**, typically made from **polymer or brass**, which ensures smooth ball circulation while reducing wear and noise. This bearing is engineered to handle **radial and combined radial-thrust loads** with exceptional stability, thanks to its **precise preload tolerance** and **low friction coefficient**, which minimizes energy loss and heat generation during operation. The **ceramic balls** in this bearing not only reduce mass compared to steel balls improving rotational inertia in dynamic systems but also exhibit superior resistance to corrosion, wear, and temperature fluctuations, making it ideal for environments with exposure to moisture, chemicals, or extreme operating conditions. NTN s rigorous manufacturing processes, including **laser alignment, high-precision grinding, and strict quality control**, ensure that each 6202UC3 bearing delivers consistent performance, reduced maintenance requirements, and extended service life. Whether integrated into a high-speed electric motor, a precision robotics system, or a demanding industrial conveyor, this bearing exemplifies NTN s commitment to innovation and engineering excellence, providing engineers and operators with a dependable solution for demanding mechanical applications.

### Pros and Cons of Buying NTN 6202UC3 Bearings

1. **High Quality and Durability** NTN is a well-known manufacturer of precision bearings, known for their robust construction, high-quality materials, and reliable performance in demanding applications. The 6202UC3 is a deep groove ball bearing designed for general-purpose use, offering smooth operation and long service life under normal conditions.

2. **Standardized Design** The 6202UC3 follows international bearing standards (ISO 15), ensuring compatibility with a wide range of machinery, including electric motors, pumps, conveyors, and automotive components. This makes sourcing replacement parts easier.

3. **Self-Aligning Capability** The "UC3" designation indicates a **shielded (not sealed) bearing with a rubber seal on one side**, which provides some protection against dust and light contamination while still allowing for minor shaft misalignment. This makes it suitable for applications where perfect alignment is difficult to achieve.

4. **Cost-Effective for General Use** Compared to specialized or high-performance bearings, the 6202UC3 offers a good balance between price and performance, making it a cost-effective choice for many industrial and automotive applications.

5. **Wide Availability** Due to its popularity, these bearings are readily available from distributors, online retailers, and aftermarket suppliers, reducing lead times and ensuring quick replacements when needed.

6. **Compatibility with Lubrication** The bearing can be lubricated with grease or oil, allowing for customization based on operating conditions (e.g., high-speed or high-temperature applications).

7. **Backed by Manufacturer Warranty** NTN provides warranties and technical support, offering assurance against defects in materials or workmanship.

---

1. **Limited Protection Against Contamination** While the UC3 model has a rubber seal on one side, it is **not fully sealed or shielded on both sides**. This means it is still vulnerable to dust, moisture, and debris in harsh environments, potentially leading to premature wear or failure if not properly maintained.

2. **Not Suitable for Extreme Conditions** The 6202UC3 is not designed for high-temperature, high-speed, or heavily loaded applications. In such cases, specialized bearings (e.g., ceramic ball bearings, sealed units, or tapered roller bearings) may be required.

3. **Requires Proper Installation** Like all bearings, improper mounting (e.g., excessive preload, misalignment, or contamination during installation) can significantly reduce its lifespan. Skilled labor or proper tools may be needed for installation.

4. **Maintenance Dependency** Since it is not fully sealed, regular lubrication and inspection are necessary to prevent failure, especially in dirty or high-vibration environments.

5. **Potential for Noise and Vibration** If the bearing is not properly lubricated or misaligned, it may generate noise and vibration, affecting the performance of the machinery it supports.

6. **Limited Load Capacity** The 6202UC3 is a **light-duty bearing** with a radial load capacity of **17.0 kN (1,735 kgf)** and an axial load capacity of **0.42 kN (43 kgf)**. For applications requiring higher loads, larger bearings (e.g., 6203, 6204) or different types (e.g., cylindrical roller bearings) may be needed.

7. **Counterfeit Risk** Due to its popularity, there is a risk of purchasing counterfeit or low-quality bearings masquerading as NTN products. Buying from authorized distributors or reputable suppliers helps mitigate this risk.

---

The **NTN 6202UC3 bearing** is an excellent choice for **general-purpose applications** where moderate loads, controlled environments, and standard performance are required. Its shielded design provides some protection against minor contamination, and its widespread availability makes it a practical option for maintenance and replacement. However, it is **not ideal for extreme conditions, high loads, or heavily contaminated environments** without additional safeguards (e.g., full sealing, proper housing, or additional lubrication systems).

For **harsh or high-performance applications**, consider upgrading to a **fully sealed bearing (e.g., 6202ZZ)**, a **larger bearing (e.g., 6203UC3 for higher loads)**, or a **specialized bearing type** (e.g., angular contact, tapered roller, or ceramic ball bearings).

---

- You need a **reliable, cost-effective bearing** for **light to moderate radial loads** in **clean or moderately controlled environments**.

- The application involves **electric motors, small pumps, conveyors, or automotive components** where standard performance is sufficient.

- You can **regularly inspect and relubricate** the bearing to maintain optimal performance.

- The application involves **high temperatures, heavy loads, or extreme contamination** (consider sealed or fully enclosed bearings).

- The bearing will operate in **high-speed or high-vibration conditions** (larger or specialized bearings may be needed).

- You are in a **high-risk environment for counterfeit products** (purchase from authorized NTN distributors or verified suppliers).

- The bearing will be **permanently sealed in a housing** without access for relubrication (a fully sealed unit like 6202ZZ may be better).

For most **standard industrial and automotive uses**, the NTN 6202UC3 is a **solid, practical choice** when used correctly. Always verify compatibility with your specific application and follow proper installation and maintenance procedures.

Details:

Items are shipped using USPS, UPS, and FedEx. NTN 6202UC3 Bearing NOS. All parts are in stock and ready to ship.

If the original package is included it may show signs of wear. Bearing is new and in excellent condition, original packaging.

part #: 6202uc3 prices

• $12.99-$30.86

specifications bearingmotorcycleiz:

• brand: Ntn
• mpn: 6202uc3
• part type: Bearing

seller bearingmotorcycleiz:

• # reviews: 129181
• city: Ashaway, Rhode Island
• rating: 99.9%

payments bearingmotorcycleiz:

• credit card: Visa
• wallet: Apple-pay
• other

offer bearingmotorcycleiz:

• best offers: True
• availability: In Stock
• started: March 6, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

shipping bearingmotorcycleiz:

• service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
• class: Standard, Expedited, One-day
• type: Calculated
• transit: 4-7 Days
• carrier: USPS, UPS
• cost: $0.00

returns bearingmotorcycleiz:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

Ntn 6202UC3 Is Similar To:

• 0625062054 Ktm Ball Bearing Ntn (48.1% similar) Ball bearing 6205 C3...(September 14th, 2018)
• 443504 Form62051pk Ntn Formula Bearing (42.6% similar) Ntn snowmobile idler wheel bearing 25MM x 52MM 15MMHIGH quality replacement from Ntn check dimensions to be sure this fits your requirements sold individually made in japan fit guide model idler bearing country of DIAMETER25MM outside DIAMETER52MM width 15MM...(August 2nd, 2018)
• 4t-30204 70-11 Ntn 5 Nos (34% similar) See my other listings for more old bike parts...(October 3rd, 2017)
• 5304 Ntn Nos Bearing (55.8% similar) See my other listings for more old bike parts...(October 3rd, 2017)
• 6202-16-2rs Ntn Bearing Sealed New Qty Free Shipping (37.3% similar) We prefer not to be paid with e-check see paragraph below. This means the check clears before we send it. This listing is for one bearing only as described and shown. Items is of course sold as. However, this is not cost effective for us as our pricing aggressively competitive. It can sometimes take...(November 6th, 2018)
• 6202lu Tpi Ntn Ball Bearing Size Mm Sealed Both Sides (42.1% similar) Ntn ball bearing 6202LU size mm sealed both sides Honda Kawasaki Yamaha. All activity in the shipping and receiving area is recorded for future reference. 1H-0MD-N1-C0...(March 21st, 2018)
• Row 40x80x18mm 6208-rs Groove Ntn Ball 6208-1rs Seal Radial Deep Single Bearing C3 6208 6802-rs 6208lu (24% similar) ...(March 10th, 2015)
• 6301z Ntn Nos Bearing Free Shipping (44.8% similar) Please for any questions or concerns. Location: Pb 11S...(September 19th, 2018)
• 6305-tn9c4 Ntn Open Deep Groove Ball Bearing Od Id (35.6% similar) 6305TN9C4 open deep groove ball bearing OD 62MM id 25MM x 17MM...(July 15th, 2018)
• 6905 2rsc3 6905lluc3-2as Ntn Axle Bearing New Qty Free Shipping (32.6% similar) We research every part number to the best of our ability with what information is available us. If you are wanting to return something the guidelines we unintentionally misrepresent it, give full purchase price back. The value of doing business with us is getting exactly that which pictured and ...(November 6th, 2018)
• 7e-hvs20x27x30-lp03 Ntn Needle Bearing 4547359671582 (34.7% similar) Needle bearing 7E-HVS20X27X30 LP03...(October 19th, 2018)