Electrical Equipment logo
Français
Super Precision Double Row Cylindrical Roller Bearing NN3018 TN3/SPW33 for High-Precision Machinery
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.

Send Your Full List
Technical data

Specifications

The table below lists the designation, category and recorded dimensions for Super Precision Double Row Cylindrical Roller Bearing NN3018 TN3/SPW33 for High-Precision Machinery. Confirm these values against your equipment record before ordering.

Product details

About this SKF bearing

Product Specifications

Parameter Details
Model Number NN3018 TN3/SPW33
Bearing Type Double Row Cylindrical Roller Bearing
Number of Rows Double Row
Structure Cylindrical
Inner Diameter 06
Seals Type Open
Trademark SKF
Origin China
Single Gross Weight 0.250kg
Selling Units Single Item
Package Size 20.00cm * 20.00cm * 20.00cm
Package Gross Weight 0.300kg

Application Suitability

Industry Typical Applications
High-Precision Machinery Industrial equipment requiring super precision components

Finding the Right SKF NN3018 TN3/SPW33 Super Precision Bearing for Your Machinery?

Selecting the correct super precision bearing can be challenging, especially when dealing with high-precision machinery where even minor dimensional mismatches can lead to performance issues or equipment downtime. Many buyers struggle with ensuring authenticity and consistent quality across suppliers, which is critical for maintaining operational reliability.

Engineered for High-Precision Machinery Performance

The SKF NN3018 TN3/SPW33 double row cylindrical roller bearing addresses these challenges by offering a reliable solution for high-precision machinery applications. As a specialized supplier with direct access to a wide range of bearing products, we ensure that this super precision bearing meets the exacting standards required for precision equipment. Its double row cylindrical structure provides stability and load capacity, making it suitable for machinery where accuracy and durability are paramount.

Ideal Operating Conditions for the SKF NN3018 Bearing

This super precision bearing performs best in environments where high rotational accuracy and radial load capacity are essential. The open seal design allows for proper lubrication management, while the double row configuration enhances rigidity—key factors in applications such as precision machine tools and industrial automation systems. Choosing the right specifications, like the NN3018 TN3/SPW33 model, ensures that your equipment operates within optimal parameters, reducing the risk of premature failure.

Key Engineering Features of the Double Row Cylindrical Roller Bearing

The SKF NN3018 TN3/SPW33 bearing incorporates several critical engineering details that impact performance. Its double row cylindrical roller structure distributes radial loads evenly, improving stability under heavy loads. The super precision classification ensures tight dimensional tolerances, which is vital for maintaining alignment in high-precision machinery. Additionally, the open design allows for easy maintenance and lubrication, ensuring consistent performance over time. These features collectively contribute to the bearing's ability to handle the demands of precision industrial applications.

The Impact of Bearing Selection on Total Operational Cost

Choosing the right super precision bearing directly affects your total operational cost. A high-quality bearing like the SKF NN3018 TN3/SPW33 reduces the need for frequent replacements and maintenance, minimizing downtime and associated expenses. In contrast, using inferior bearings can lead to increased vibration, noise, and early wear, resulting in unplanned repairs and higher long-term costs. By investing in a precision-engineered bearing, you ensure reliable performance and lower total cost of ownership for your machinery.

Ensuring Quality and Reliability in Every Bearing

Our commitment to quality is reflected in our rigorous sourcing and inspection processes. We adhere to ISO 9001 standards, ensuring that all bearings undergo thorough testing for dimensions, hardness, and surface quality. Each SKF NN3018 TN3/SPW33 bearing is supplied with complete traceability documentation, verifying its origin and compliance with factory specifications. We offer a warranty on all products, covering manufacturing defects, and maintain a large inventory to support quick delivery, ensuring you receive the bearings you need when you need them.

Packaging & Shipping

  • Packaged in standard cartons with dimensions 20.00cm * 20.00cm * 20.00cm to ensure product protection during transit.
  • Available for same-day shipping for in-stock items, supporting urgent procurement needs.
  • Flexible shipping options including express delivery, air freight, and sea freight to accommodate global delivery requirements.
  • Low minimum order quantity, suitable for both small-scale maintenance and large-volume production needs.

Get a Quote for the SKF NN3018 TN3/SPW33 Bearing

To proceed with your order or request a quote, provide the bearing model, required quantity, and destination details. Our team will promptly confirm pricing and availability, ensuring you receive the super precision bearings your high-precision machinery requires. We also support inquiries for other SKF bearing models and related products, offering a one-stop procurement solution.

Frequently Asked Questions

Q: Do you support procurement of other bearing brands and models?

A: Yes, we provide access to a comprehensive range of bearing brands and models, including both international and domestic options. We can source bearings according to your specific brand or model requirements.

Q: How can I confirm if the SKF NN3018 TN3/SPW33 bearing is compatible with my equipment?

A: Provide your equipment's bearing specifications, including dimensions and load requirements. Our technical team will verify compatibility with the SKF NN3018 TN3/SPW33 bearing and offer guidance if adjustments are needed.

Q: What is your warranty policy for this bearing?

A: We offer a warranty covering manufacturing defects. The specific terms and duration are outlined in the sales contract, ensuring protection against material or production-related issues.

Q: What is the minimum order quantity for the SKF NN3018 TN3/SPW33 bearing?

A: We support low minimum order quantities, allowing for small-scale purchases such as maintenance replacements or trial orders, as well as large-volume production requirements.

Q: How long does shipping take, and what logistics options are available?

A: In-stock items are shipped the same day. Shipping times vary by destination, with delivery typically within 7-15 days via our global logistics network. We offer express, air, and sea freight options to meet your timeline needs.

Q: Do you offer OEM or ODM customization for bearings?

A: Yes, we support custom bearing solutions based on your technical drawings or specifications, including modifications to dimensions, materials, and packaging as required.

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.

Send Your Model List
Applications

Where this bearing is used

Super Precision Double Row Cylindrical Roller Bearing NN3018 TN3/SPW33 for High-Precision Machinery 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 Super Precision Double Row Cylindrical Roller Bearing NN3018 TN3/SPW33 for High-Precision Machinery.

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 Super Precision Double Row Cylindrical Roller Bearing NN3018 TN3/SPW33 for High-Precision Machinery

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.