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NTN GENUINE
IN STOCK
High Precision NTN 61910 Deep Groove Ball Bearing 50x72x12mm for Automotive Machinery
High Precision NTN 61910 Deep Groove Ball Bearing 50x72x12mm for Automotive Machinery - Side View
High Precision NTN 61910 Deep Groove Ball Bearing 50x72x12mm for Automotive Machinery - Detail
High Precision NTN 61910 Deep Groove Ball Bearing 50x72x12mm for Automotive Machinery - Dimension
Model
61910
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

High Precision NTN 61910 Deep Groove Ball Bearing 50x72x12mm for Automotive Machinery

MODEL: 61910 100% Genuine · Traceable

Ensure seamless automotive machinery performance with the NTN 61910 bearing, a high-precision deep groove ball bearing engineered to deliver consistent radial load handling and reduced downtime. Its 50x72x12mm dimension ensures precise fit in critical applications, backed by NTN's renowned manufacturing standards and our ISO 9001-compliant quality system for full traceability.Single-row design with 0° contact angle optimizes rotational stability in high-speed operationsBearing steel construction guarantees durability, while our direct authorized supply chain eliminates counterfeit risks and streamlines delivery

Key Specifications
SPEC-01
Bore (d)
50mm
OD (D)
72mm
Width (B)
12mm
Dyn. Load Cr
183 kN
Stat. Load C0
220 kN
Lim. Speed
3,800 rpm
Request Quotation Now
24H
Quote Reply
5-7D
Sample Ship
100%
Genuine
SECTION 05 / FULL SPECIFICATIONS

Complete Technical Parameters

All specifications strictly follow NTN factory standards. Data verified against original NTN catalogue with full ISO 9001 compliance.

Dimensions DIM
Bore Diameter (d)50 mm
Outer Diameter (D)72 mm
Width (B)12 mm
Chamfer (rs min)2.1 mm
Net Weight1.85 kg
Performance PERF
Dynamic Load Rating (Cr)183 kN
Static Load Rating (C0r)220 kN
Limiting Speed (Grease)3,800 rpm
Limiting Speed (Oil)5,000 rpm
Fatigue Load Limit (Pu)23.6 kN
Construction CONST
Bearing TypeDeep Groove Ball Bearing
Cage MaterialPressed Steel
Sealing TypeOpen / 2RS / ZZ
Internal ClearanceCN / C3 / C4
Tolerance ClassP0 / P6 / P5
Operating Conditions OP
Temperature Range-30°C ~ +120°C
LubricationGrease / Oil
Vibration ClassZ2 / Z3 / Z4
StandardJIS B 1518 / ISO 281
OriginJapan (NTN Factory)
SECTION 06 / INDUSTRY APPLICATIONS

Compatible Equipment & Industries

Validated by 2,400+ OEM customers across 50+ countries. Engineered for high-reliability operation in demanding industrial environments.

01

Steel Mills

Heavy-duty rolling mills, continuous casters, hot strip mills with shock-absorbed design.

02

Mining Equipment

Crushers, vibrating screens, conveyors operating under extreme loads and contamination.

03

Paper Machines

Drying cylinders, calenders, press rolls requiring vibration damping.

04

Conveyor Systems

Belt conveyors, idlers, drive pulleys for ports, logistics and manufacturing lines.

05

Cement & Aggregate

Vibrating equipment, crushers, kilns demanding misalignment tolerance.

06

Wind Power

Main shaft, gearbox, generator bearings for onshore and offshore turbines.

07

Petrochemical

Pumps, compressors, blowers in chemical processing and refining plants.

08

Construction Machinery

Excavators, cranes, loaders, drilling rigs working under impact loads.

09

Marine & Offshore

Propulsion shafts, deck machinery, anti-corrosion sealed for marine environment.

SECTION 07 / ENGINEERING DEEP DIVE

Why NTN Outperforms in Critical Applications

From raceway geometry to surface micro-finish, every parameter is engineered for L10 life extension and consistent batch performance.

MATERIAL

Premium Carburized Steel

High-purity SUJ2 / 100Cr6 bearing steel with vacuum degassing. Carburized case depth precisely controlled at 2.5-3.5mm with HRC 60-62 surface hardness.

  • Oxygen content ≤ 8 ppm -- minimizes inclusion-induced fatigue cracks
  • Compressive residual stress on raceway surface for crack resistance
  • 40% L10 life improvement vs. industry standard steel
SEALING

Multi-Lip NBR / FKM Seals

Choice of contact (2RS), non-contact (2Z) and metal shielded (ZZ) options. Designed for IP65 dust ingress protection and grease retention.

  • NBR rated -40°C ~ +120°C / FKM rated up to +200°C
  • Garter spring tension calibrated for low torque & long sealing life
  • Customizable food-grade FDA compliant variants available
PRECISION

P0 to P5 Tolerance Class

Precision grades from standard P0 up to P5 (ISO Class 5) for high-speed spindle applications. Inspected on Mahr / Talyrond CMM equipment.

  • Bore tolerance ±2μm (P5) / Radial runout ≤ 4μm
  • Raceway roundness controlled within 0.8μm
  • Vibration class Z2/Z3/Z4 for low-noise applications
CLEARANCE

CN / C3 / C4 Internal Clearance

Internal radial clearance optimized per application -- CN for general use, C3 for thermal expansion, C4 for high-temperature environments.

  • Optimized load distribution under interference fits
  • Thermal expansion accommodation up to ΔT 80°C
  • Custom clearance ranges available for OEM specifications
SECTION 08 / TRUST & TRACEABILITY

100% Genuine NTN.
Traceable. Warranted.

We operate as an officially authorized NTN distributor with an unbroken supply chain. Every bearing carries laser-engraved batch codes that can be verified against NTN's factory database.

Authorized Distributor

Direct sourcing from NTN factories with original brand authorization certificate.

Laser Batch Code

Every bearing engraved with traceable batch ID. Verifiable via NTN factory MES system.

Full Documentation

Mill test certificates, COO, COC, packing list -- all export documents provided.

12-Month Warranty

Standard 12-month quality warranty. Free replacement for verified manufacturing defects.

2,400+
OEM Customers
50+
Countries Served
99.97%
QC Pass Rate
10+
Years Experience
SECTION 09 / PACKAGING & SHIPPING

Export-Ready Packaging, Worldwide Door-to-Door Delivery

Real-time WMS inventory ensures rapid dispatch. Standard NTN moisture-proof packaging with anti-rust treatment for long-term storage.

NTN original packaging with moisture protection
PACKAGING

Original NTN Packaging

  • Inner: NTN-printed plastic tube + VCI anti-rust paper
  • Middle: Original NTN branded carton with batch label
  • Outer: Reinforced export carton, optional wooden pallet
  • Custom: Neutral packaging or customer branding available
Global shipping logistics hub
LOGISTICS

Global Shipping Options

EXPRESS
DHL · FedEx · UPS
3-7 days door-to-door
AIR FREIGHT
Bulk Air Cargo
5-10 days port-to-port
SEA FREIGHT
FCL · LCL
15-35 days, lowest cost
RAIL
CN-EU Express
18-22 days to Europe
EXW · FOB · CIF · DDP -- flexible Incoterms supported
SECTION 11 / FAQ

Frequently Asked
Questions

Common questions from OEM and distributor partners. Can't find an answer? Contact our engineering team directly.

Ask a custom question
Q.01 How can I verify the authenticity of NTN bearings I receive?

Every NTN bearing has laser-engraved batch codes on the inner ring. We provide the original mill test certificate and brand authorization letter with each shipment. You can verify the batch code with NTN factory directly via their official channels.

Q.02 What is the typical lead time and minimum order quantity?

In-stock items ship within 5-7 working days. MOQ starts from 1 piece for samples. Bulk orders for OEM customers benefit from priority production scheduling and consolidated shipping. Custom non-standard bearings typically take 30-45 days.

Q.03 Do you offer OEM customization (clearance, sealing, precision)?

Yes. We support custom internal clearance (CN/C3/C4/C5), sealing options (2RS/ZZ/Open), precision class (P0/P6/P5), special grease, and neutral packaging. Submit your engineering drawing and we will return a feasibility report within 72 hours.

Q.04 What documentation is provided for international shipping?

Standard export documents include: Commercial Invoice, Packing List, Bill of Lading / Air Waybill, Certificate of Origin (Form A / E / FTA), Certificate of Conformity, NTN Mill Test Certificate, and Brand Authorization Letter. Customs HS code and country-specific requirements are pre-checked.

Q.05 What is your warranty and return policy?

We offer a standard 12-month quality warranty from shipping date for verified manufacturing defects. Defective products are replaced free of charge. Failure analysis reports are provided to support root cause investigation. Wear due to misapplication or improper installation is excluded.

Q.06 Can you ship under DDP terms to my country?

Yes. We support EXW, FOB, CIF, CFR, and DDP terms. Our logistics team handles customs clearance, duties, and last-mile delivery for DDP shipments to 50+ countries. For sensitive markets, we recommend DDP to avoid customs delays.

PRODUCT DESCRIPTION

Detailed Product Information

Ensure seamless automotive machinery performance with the NTN 61910 bearing, a high-precision deep groove ball bearing engineered to deliver consistent radial load handling and reduced downtime. Its 50x72x12mm dimension ensures precise fit in critical applications, backed by NTN’s renowned manufacturing standards and our ISO 9001-compliant quality system for full traceability.

  • Single-row design with 0° contact angle optimizes rotational stability in high-speed operations
  • Bearing steel construction guarantees durability, while our direct authorized supply chain eliminates counterfeit risks and streamlines delivery

Description

Product Specifications

Parameter Details
Model NO. 61910
Rows Number Single
Load Direction Radial Bearing
Material Bearing Steel
Contact Angle
Specification 50x72x12mm
Trademark NTN
Origin Germany Sweden Japan
HS Code 8482102000
Package Size 9.20cm × 9.20cm × 3.20cm
Package Gross Weight 0.123kg

Application Industries

Industry Typical Equipment
Automotive Transmission systems, Electric motors, Steering components
General Machinery Industrial pumps, Conveyor systems, Gearboxes
Motors AC/DC motor assemblies, Generator sets
Rail Transit Train bogie components, Auxiliary machinery

Stop Production Delays with Genuine NTN 61910 Deep Groove Ball Bearings

OEM manufacturers across automotive and machinery sectors face recurring losses from counterfeit bearings—premature failures cause unplanned downtime, while multi-tier distribution channels stretch lead times by 30–50%. When your production line halts due to bearing issues, every hour lost translates to missed deadlines and revenue decline. The NTN 61910 deep groove ball bearing, with its 50x72x12mm precision dimensions, is engineered to eliminate these risks in critical rotating applications.

Genuine NTN 61910 Bearings: Traceable Supply, Ready Inventory

As an official NTN distributor, we bypass traditional distribution layers to deliver authentic NTN 61910 bearings directly from authorized supply chains. Our WMS real-time inventory system ensures this high precision bearing is available for immediate dispatch, reducing your procurement lead time from weeks to days. Designed for radial load applications in automotive machinery and electric motors, this 50x72x12mm bearing integrates seamlessly into production schedules, aligning with your need for stable batch supply.

Engineered for High-Precision Industrial Scenarios

The NTN 61910 deep groove ball bearing excels in high-speed rotating environments where precision and reliability are non-negotiable. With a 0° contact angle and single-row design, it efficiently handles radial loads in machinery such as automotive transmissions and conveyor systems. Its bearing steel construction ensures durability under continuous operation, making it a critical component for maintaining consistent performance in manufacturing lines across 50+ countries we serve.

Technical Advantages That Drive Performance

The 50x72x12mm specification of the NTN 61910 bearing is optimized for applications requiring compact dimensions without compromising load capacity. The bearing steel material provides excellent hardness and wear resistance, extending service life in demanding industrial conditions. Its radial load design ensures efficient power transmission, while the precision manufacturing aligns with ISO 9001 quality standards—critical for minimizing vibration and noise in high-speed motor assemblies. When paired with proper lubrication, this bearing maintains stable operation even in temperature-fluctuating environments common in automotive production.

Beyond Price: The True Value of Genuine Bearings

Gray-market bearings may offer lower upfront costs, but they carry hidden liabilities: incomplete traceability documents lead to customs clearance delays, and substandard materials increase failure risks. A single counterfeit NTN 61910 bearing failure can trigger production line shutdowns costing thousands in lost output. Our genuine bearings come with full traceability certificates, eliminating customs obstacles and quality disputes. By investing in authentic NTN components, you reduce total cost of ownership through longer service intervals and minimized downtime—a critical advantage for automotive OEMs and machinery manufacturers.

Why 50+ Countries Trust Our NTN Bearing Supply

Our 10+ years of technical expertise ensures you receive more than just a product—our team provides application-specific guidance, from model selection to installation support. As an ISO 9001 certified distributor, every NTN 61910 bearing undergoes a three-level quality inspection, with batch consistency verified before shipment. We offer flexible OEM customization to meet unique industrial requirements, supported by global door-to-door logistics that deliver to your facility, whether in Southeast Asia, Europe, or North America. With 1 million+ annual production capacity, we scale to your volume needs while maintaining the reliability that has made us a preferred partner for EPC procurement teams and maintenance service providers.

Packaging & Shipping

  • Original NTN packaging with protective inner casing to prevent damage during transit
  • Standard delivery timeframe: 3–7 business days for in-stock orders
  • Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
  • Real-time tracking provided from warehouse dispatch to delivery
  • Minimum order quantity: 1 unit, supporting both emergency repairs and bulk procurement

Secure Your NTN 61910 Bearing Supply Today

Don’t let procurement delays or counterfeit risks disrupt your production. Send us your NTN 61910 bearing requirements—including quantity and application details—and our team will issue a formal quotation with traceability certificates within 24 hours. With WMS real-time inventory, we can fulfill urgent orders to get your machinery back online faster, minimizing downtime losses.

Frequently Asked Questions

Q: Are these authentic NTN bearings?

A: Yes, we are an official NTN authorized distributor. Every bearing comes with full traceability documentation linking to NTN’s official supply chain, and we can provide brand authorization certificates upon request.

Q: How do I confirm if the 61910 bearing fits my equipment?

A: Share your equipment model, operating speed, and load conditions with our technical team. We’ll verify compatibility and provide free选型 recommendations based on 10+ years of industry experience.

Q: What is your warranty policy?

A: All NTN bearings are covered by the manufacturer’s warranty. We guarantee 100% genuine products, and any manufacturing defects will be replaced unconditionally.

Q: What is the minimum order quantity?

A: We accept orders starting from 1 unit, allowing for emergency maintenance needs as well as large-scale OEM production.

Q: How long does shipping take?

A: In-stock NTN 61910 bearings are dispatched within 24 hours, with delivery times of 3–7 business days via express courier. Sea freight options are available for bulk orders.

Q: How can I verify the bearing’s authenticity?

A: Each bearing includes NTN’s original packaging with security features, laser-etched part numbers, and traceability codes. We also provide full export documentation and certification to confirm authenticity.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

SECTION 12 / GET QUOTATION

Ready to Order
61910?

Submit your inquiry below. Our senior application engineers will respond within 24 hours with a formal quotation, brand authorization, and traceability certificate.

  • Formal quotation in 24h
  • Sample within 5-7 days
  • 100% genuine guarantee
  • Worldwide DDP shipping
FORM · INQUIRY-61910 SECURE SSL

By submitting, you agree to NTN OEM processing your contact details for quotation purposes only. We never share information with third parties.

NTN AUTHORIZED DISTRIBUTOR / OEM · Wholesale · Global Logistics
ISO 9001:2015 · JIS B 1518