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Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery 60-64 HRC Hardness
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
Mining Machinery Heavy duty mining equipment components

Need a Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery?

Finding a reliable NNU4930 Bearing that can handle the extreme conditions of mining machinery is challenging. Many buyers face issues with incorrect dimensions leading to installation problems, or bearings that fail prematurely due to insufficient hardness and material quality. Sourcing from multiple suppliers to compare specifications and delivery times only adds to the complexity.

Built for Heavy Duty Mining Machinery Performance

Our Heavy Load Double Row Cylindrical Roller Bearing NNU4930 addresses these challenges with its robust design and precise engineering. As a professional bearing supplier with extensive experience in serving mining industry clients, we ensure our products meet the rigorous demands of heavy duty applications. The 60-64 HRC hardness provides exceptional wear resistance, making it suitable for the abrasive environments common in mining operations.

Optimal Performance in Mining Machinery Conditions

This High Hardness Cylindrical Roller Bearing excels in heavy load applications where axial forces are significant. Its separated design allows for easy installation and maintenance, even in tight spaces within mining equipment. The bearing's medium and large outer dimensions (120-190mm) make it compatible with various mining machinery components, providing reliable performance under continuous operation.

Key Engineering Features for Reliable Operation

The NNU4930 Bearing incorporates several critical engineering details that enhance its performance. The use of high-quality bearing steel ensures durability and resistance to deformation under heavy loads. The 60-64 HRC hardness rating is achieved through precise heat treatment, resulting in a bearing surface that can withstand the rigors of mining operations without premature wear. Available clearance options (C0 C2 C3 C4 C5) allow for customization based on specific application requirements, ensuring optimal performance in different operating conditions. The cage options (brass, steel) provide flexibility to match the bearing's performance characteristics with the demands of the application.

The Impact of Bearing Quality on Mining Operations

Choosing the right Cylindrical Roller Bearing for Mining applications directly affects operational efficiency and total cost of ownership. A high-quality bearing like the NNU4930 reduces downtime by minimizing the risk of unexpected failures. Its ability to handle heavy loads and resist wear means longer service intervals, reducing maintenance costs and increasing equipment availability. In contrast, using inferior bearings can lead to frequent replacements, unplanned downtime, and potential damage to other machinery components, significantly increasing overall operational costs.

Ensuring Quality You Can Trust

Our commitment to quality is evident in our ISO 9001 certified production and inspection processes. Each bearing undergoes rigorous testing, including material verification, dimensional accuracy checks, and hardness testing to ensure it meets specified standards. We provide a warranty on all our products, covering manufacturing defects, giving you peace of mind in your purchase. With our extensive network of suppliers, we can source bearings according to your specific brand and model requirements, ensuring compatibility with your existing equipment. Our substantial inventory allows for prompt delivery, minimizing lead times and keeping your operations running smoothly.

Packaging & Shipping

  • Packaged in carton pallets to ensure safe transportation
  • Available from stock for prompt shipping
  • Flexible shipping options including express, air, and sea freight
  • Low minimum order quantity supported, accommodating both small and large scale requirements

Get Your NNU4930 Bearing Quote Today

Whether you need a single Heavy Duty Mining Machinery Bearing or a bulk order, we're here to help. Provide us with the bearing model, required specifications, and quantity, and our team will promptly prepare a competitive quote. With our extensive inventory and global shipping capabilities, we can fulfill your order quickly and efficiently.

Frequently Asked Questions

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

A: Yes, we support inquiries for all bearing brands and models, and can supply according to your specified requirements.

Q: How can I confirm if this NNU4930 bearing is suitable for my equipment?

A: Please provide the detailed dimensions and application requirements of your equipment, and our technical team will assist in verifying compatibility.

Q: What is your warranty policy for this bearing?

A: We provide a warranty period for all bearings, covering manufacturing defects. Specific terms are subject to the agreement in the sales contract.

Q: What is the minimum order quantity for this NNU4930 bearing?

A: We offer low minimum order quantities, supporting small batch trial orders to meet your needs.

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

A: This bearing is available from stock for immediate shipment. We offer flexible logistics options including express, air, and sea freight based on your requirements.

Q: Do you provide OEM/ODM customization services?

A: Yes, we support customization according to your provided drawings and specifications.

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

Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery 60-64 HRC Hardness 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 Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery 60-64 HRC Hardness.

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 Heavy Load Double Row Cylindrical Roller Bearing NNU4930 for Mining Machinery 60-64 HRC Hardness

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.