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Double Row Cylindrical Roller Bearings Nu308-Ec for High-Speed Precision Machinery with C3 Clearance
Genuine SKF

Buying for several machines? Add this model to one inquiry with the other SKF bearings, housings and accessories on your list. Each line keeps its own designation, quantity and specification.

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Product details

About this SKF bearing

Product Specifications

Parameter Details
Bearing Type Double Row Cylindrical Roller Bearing
Outer Dimension Medium and Large(120-190mm)
Material Bearing Steel
Spherical Non-Aligning Bearings
Load Direction Axial Bearing
Separated Separated
Clearance C0 C2 C3 C4 C5
Cage Brass, Steel
Vibration Z1V1 Z2V2 Z3V3
Hardness 60-64 HRC
HS Code 8482800000

Application Suitability

Industry Typical Applications
Precision Machinery High-speed rotating components requiring accuracy and load capacity

Struggling with High-Speed Precision Machinery Performance? Nu308-Ec Double Row Cylindrical Roller Bearings Deliver Reliability

Many industrial buyers face challenges finding bearings that maintain precision at high speeds while handling axial loads. Mismatched clearance or poor material quality often leads to premature wear, increased vibration, and unexpected downtime. Sourcing from multiple suppliers for different bearing types only adds complexity to procurement.

Engineered for High-Speed Precision Machinery with C3 Clearance

The Nu308-Ec Double Row Cylindrical Roller Bearings address these issues with their separated design and C3 clearance, ideal for applications where thermal expansion occurs at high rotational speeds. Our extensive inventory covers a wide range of bearing types, including this precision model, ensuring same-day shipping for spot orders. Whether for machine tools or precision equipment, these bearings provide the stability needed for continuous operation.

Optimal Performance in High-Speed, Axial Load Environments

This bearing excels in conditions where both radial and axial loads are present, such as in high-speed gearboxes and precision spindles. With a hardness of 60-64 HRC, it withstands heavy loads while maintaining dimensional stability. The non-aligning design requires proper shaft alignment, making it suitable for rigidly mounted machinery where misalignment is minimal but precision is critical.

Key Engineering Features for Reliable Operation

The separated inner and outer rings allow for easy mounting and dismounting, simplifying maintenance procedures. Available with brass or steel cages, the bearing can be tailored to specific speed requirements—brass cages offer higher strength at elevated temperatures, while steel cages provide cost-effectiveness for standard applications. C3 clearance ensures adequate space for thermal expansion during high-speed operation, preventing excessive friction and heat buildup that can degrade performance. The Z1V1 to Z3V3 vibration grades also contribute to smoother operation, reducing noise and extending equipment life.

Why Choosing the Right Bearing Reduces Total Cost

Selecting a bearing with the correct clearance and load capacity directly impacts equipment uptime and maintenance costs. A bearing with insufficient clearance may seize under thermal expansion, causing catastrophic failure and costly repairs. Conversely, excessive clearance can lead to vibration and reduced precision, affecting product quality. By choosing the Nu308-Ec with C3 clearance, you ensure optimal performance under high-speed conditions, minimizing unplanned downtime and lowering long-term operational expenses.

Quality You Can Rely On

Our bearings undergo rigorous quality control processes, including material inspection and hardness testing to ensure compliance with industry standards. Each unit is manufactured to precise dimensions, guaranteeing interchangeability with major international standards. We stand behind our products with a warranty against manufacturing defects, providing peace of mind for your critical applications. With access to a wide range of brands and models, we can fulfill your specific requirements efficiently.

Packaging & Shipping

  • Packaged in cartons on pallets for secure transport
  • Same-day shipping available for in-stock items
  • Flexible delivery options including express, air, and sea freight
  • Low minimum order quantities to support both small and large scale needs

Get Your Nu308-Ec Bearing Quote Today

Whether you need a single unit or bulk quantities, provide us with the bearing model, dimensions, and quantity required, and we’ll promptly send you a competitive quote. Our team can also assist with technical specifications to ensure the bearing matches your application needs. The sooner you confirm your order, the faster we can arrange delivery.

Frequently Asked Questions

Q: Do you supply bearings from other brands or models?

A: Yes, we offer a complete range of bearings across various brands and models. We can source according to your specific brand or dimensional requirements.

Q: How can I verify if this bearing fits my equipment?

A: Provide your equipment’s bearing dimensions (bore, outer diameter, width) or model number, and our technical team will cross-check compatibility with the Nu308-Ec specifications.

Q: What is your warranty policy for bearings?

A: We provide a warranty against manufacturing defects. The specific terms are outlined in our sales contract, and defective products can be replaced or refunded according to the agreement.

Q: What is the minimum order quantity for this bearing?

A: We accept low minimum order quantities, including single-unit purchases, to support small-scale maintenance or trial applications.

Q: How quickly can you ship the Nu308-Ec bearings?

A: In-stock bearings are shipped the same day. For larger orders or specialized requirements, lead times will be provided in your quote.

Q: Do you offer custom bearing solutions (OEM/ODM)?

A: Yes, we support custom manufacturing based on your drawings or specific technical specifications, including material and clearance modifications.

Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we'll get back to you with pricing and lead time.

Why Electrical Equipment

One SKF inquiry. Every line accounted for.

Electrical Equipment is an Authorized SKF Distributor that turns mixed equipment lists into itemised, comparable quotes and consolidated supply for industrial plants, maintenance contractors and distributors worldwide.

Boxed SKF bearings stacked on warehouse shelves Technician inspecting a roller bearing on a workbench Packed bearing cartons on a pallet ready for shipment
  • Broad SKF range in one purchase

    Ball, roller, needle, thrust, mounted and precision bearings handled in a single industrial order.

  • Mixed equipment lists

    One inquiry covers parts for different machines, with designations and internal stock codes matched line by line.

  • Standard and precision flagged

    Routine replacement bearings and special-specification models are labelled separately on your quote.

  • No unapproved substitutes

    Identification gaps are closed before quoting; any alternative is listed separately for your approval.

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Applications

Where this bearing is used

Double Row Cylindrical Roller Bearings Nu308-Ec for High-Speed Precision Machinery with C3 Clearance is specified in the applications below. Open an application to see the matching SKF bearing categories.

Buyer feedback

Trusted by plants and maintenance teams

Industrial buyers in the USA, Mexico, Oman, France, New Zealand and Brazil source genuine SKF bearings and mixed lists through Electrical Equipment.

5.0

"When a critical piece of rotating equipment failed, we needed a mixed SKF list urgently. The supplier consolidated the order, shipped same-day, and the parts were on our plant floor in two days. The equipment was back online before the end of the shift."

Ahmed Al-Farsi Ahmed Al-FarsiFarsi Industrial Services · Oman
4.9

"We had a bad experience with counterfeit SKF bearings from another supplier. The bearings from skfus.com are genuine, traceable, and the packaging matches SKF's current format. Our reliability team verified the first batch and we now use them as our primary source."

Luis Hernandez Luis HernandezHernandez Manufacturing · Mexico
5.0

"The SKF mounted units and insert bearings we ordered for a conveyor upgrade were supplied with the correct housing and locking arrangement. Our maintenance team installed them without modification. No noise, no leaks, no call-backs."

Graham McLeod Graham McLeodMcLeod Fabrication · New Zealand
Selection guides

Technical articles for this bearing type

These guides cover selection, identification and replacement points relevant to Double Row Cylindrical Roller Bearings Nu308-Ec for High-Speed Precision Machinery with C3 Clearance.

FAQ

Questions about ordering this SKF bearing

Short answers on identification, mixed orders, quote terms and substitutions at Electrical Equipment.

What if my SKF designation is incomplete?

Send a clear photo of the bearing markings and note which details still need confirming. We close identification gaps, including the exact specification and complete assembly, before you accept a quote. Nothing is substituted to fill a gap.

Can I quote this bearing together with other SKF categories?

Yes. Standard, precision and mounted units can sit in one itemised inquiry, with each line keeping its own designation, quantity and specification. Housings and mounting accessories are added when they are part of your supply scope.

What does the written quote include?

Each quote lists the designation, quantity, price and currency, stock availability, estimated lead time and quote validity. Applicable freight or tax terms are stated, and the product documents available for your order are confirmed.

How are substitutions confirmed?

Only with your approval. Any alternative is marked separately on the quote, and every technical change needs sign-off from the buyer before an order is placed.

Warehouse aisle with boxed industrial bearings on steel racks
Request a quote

Get a written quote for Double Row Cylindrical Roller Bearings Nu308-Ec for High-Speed Precision Machinery with C3 Clearance

Send this model alone or with your full SKF list. We verify the identification details on every line first, then issue an itemised written quote with lead time and validity.

Identification details are checked line by line before your written quote is issued. Any technical change requires your approval.