Authorized SKF Distributor Ball, roller, needle, thrust and mounted bearings for industrial buyers worldwide
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| 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 |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
| Industry | Typical Applications |
|---|---|
| Construction Machinery | Heavy equipment drive systems, hydraulic machinery components, transmission assemblies |
Construction machinery operators know the cost of unexpected downtime—especially when caused by bearing failures. Misaligned components, excessive noise, and premature wear often stem from using incorrect bearing specifications. Sourcing reliable double row cylindrical roller bearings with precise clearance and durable cages can be a challenge, particularly when dealing with multiple suppliers for different brands.
The SKF NNU4934 B/Sp C3 double row cylindrical roller bearing addresses these challenges with features designed for heavy-duty applications. As a professional bearing supplier with access to a comprehensive range of international brands, we ensure this bearing meets the exacting standards required for construction machinery. Its separated design allows for easy installation and maintenance, while the C3 clearance provides optimal performance under thermal expansion conditions common in high-load operations.
This cylindrical roller bearing excels in applications where high radial loads and moderate axial loads are present—typical in construction equipment like excavator swing mechanisms and bulldozer final drives. Operating within temperature ranges suitable for outdoor construction sites, its robust construction handles the vibration and shock loads inherent to these environments. The brass cage option enhances durability, making it ideal for continuous operation where reliability is non-negotiable.
The 60-64 HRC hardness of the bearing steel ensures excellent wear resistance, critical for extending service life in abrasive construction environments. The Z1V1 to Z3V3 vibration classes allow selection based on noise sensitivity—important for operator comfort and compliance with worksite regulations. The double row design provides higher load capacity compared to single row alternatives, while the separated inner and outer rings simplify mounting and dismounting during maintenance. C3 clearance is specifically chosen to accommodate thermal expansion, preventing premature failure in high-temperature operations.
Investing in a quality double row cylindrical roller bearing like the SKF NNU4934 B/Sp C3 minimizes long-term costs. Inferior bearings often fail prematurely due to inadequate material hardness or imprecise clearance, leading to expensive equipment downtime and replacement parts. Properly specified bearings reduce maintenance frequency, lower labor costs, and prevent secondary damage to adjacent components. By following industry standards for load ratings and fatigue life, this bearing delivers consistent performance that contributes to overall equipment efficiency.
Our bearing procurement process adheres to strict quality control measures, ensuring each product meets dimensional and performance specifications. We source from established manufacturers with ISO 9001 certified production processes, covering raw material inspection through final product testing. All bearings come with complete traceability documentation, and we offer warranty coverage for manufacturing defects. With access to a wide range of brands and models, we can fulfill both standard and hard-to-find bearing requirements, supporting your operation with reliable supply.
Whether you need a single replacement bearing or bulk quantities for your construction machinery fleet, we can provide competitive pricing and reliable delivery. Share your exact requirements—including quantity, delivery location, and any special packaging needs—and our team will prepare a tailored quote to support your operation.
Q: Do you supply bearings from other brands besides SKF?
A: Yes, we offer a comprehensive range of bearings from international brands including NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic Chinese manufacturers, along with custom specifications.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or the existing bearing's dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the SKF NNU4934 B/Sp C3 specifications.
Q: What warranty coverage do you offer?
A: We provide warranty coverage against manufacturing defects. The specific warranty period and terms are detailed in each sales contract, ensuring protection for your investment.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, allowing you to purchase single units for maintenance or larger quantities for production, with volume-based pricing available.
Q: How quickly can you ship the SKF NNU4934 bearing?
A: Stock items are shipped within 1-2 business days. For non-stock or custom orders, lead times vary by manufacturer and will be confirmed in your quote.
Q: Do you offer OEM or custom bearing solutions?
A: Yes, we can source or manufacture custom bearings according to your technical drawings, specifications, or sample requirements, including specialized materials and cage designs.
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.
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.
Ball, roller, needle, thrust, mounted and precision bearings handled in a single industrial order.
One inquiry covers parts for different machines, with designations and internal stock codes matched line by line.
Routine replacement bearings and special-specification models are labelled separately on your quote.
Identification gaps are closed before quoting; any alternative is listed separately for your approval.
These SKF models share the category of Low Noise SKF NNU4934 B/Sp C3 Double Row Cylindrical Roller Bearing for Construction Machinery with Brass Cage and can be quoted on the same inquiry.
01 
02 
03 
04 Low Noise SKF NNU4934 B/Sp C3 Double Row Cylindrical Roller Bearing for Construction Machinery with Brass Cage is specified in the applications below. Open an application to see the matching SKF bearing categories.
Industrial buyers in the USA, Mexico, Oman, France, New Zealand and Brazil source genuine SKF bearings and mixed lists through Electrical Equipment.
"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-FarsiFarsi Industrial Services · Oman "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 HernandezHernandez Manufacturing · Mexico "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 McLeodMcLeod Fabrication · New Zealand These guides cover selection, identification and replacement points relevant to Low Noise SKF NNU4934 B/Sp C3 Double Row Cylindrical Roller Bearing for Construction Machinery with Brass Cage.
Stop shaft seizure in non-locating positions with our SKF CARB vs Cylindrical Roller comparison. Learn how CARB toroidal bearings accommodate thermal expansion and misalignment…
Read the guide Master SKF AH 3138 withdrawal sleeve specs to prevent lock nut slippage and catastrophic bearing failures in heavy machinery. Learn exact dimensions, hydraulic installation…
Read the guide
Secure genuine Bearings in Rotary Kilns and Dryers with full traceability to prevent costly downtime from counterfeit parts. Verify internal clearance and HS codes…
Read the guideShort answers on identification, mixed orders, quote terms and substitutions at Electrical Equipment.
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.
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.
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.
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.
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.
