Product Specifications
| Parameter |
Details |
| Model NO. |
NNU4934BK/SPW33 |
| Type |
Cylindrical Roller Bearing |
| Number of Row |
Single Row |
| Inner Diameter |
170 mm |
| Seals Type |
Open |
| Gross Weight Per |
0.250 Kg Batch |
| Trademark |
SKF |
| Origin |
China |
| Selling Units |
Single Item |
| Structure |
Cylindrical |
Application Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers, Concrete Mixers |
| Mining |
Crushers, Conveyors, Drilling Rigs |
| Steel |
Rolling Mills, Continuous Casters |
| Machine Tools |
CNC Spindles, Lathes, Milling Machines |
Stop Construction Delays with Genuine NNU4934 BK/SPW33 SKF Cylindrical Roller Bearings
Construction and mining operations lose thousands daily to unexpected equipment downtime. A single bearing failure in critical machinery like excavator gearboxes or conveyor systems can halt entire projects. Many buyers face frustration with long lead times from direct manufacturers or uncertainty about part authenticity when sourcing from unvetted suppliers.
Genuine SKF NNU4934 Bearing, In Stock for Immediate Delivery
As an official SKF distributor, we stock the NNU4934 BK/SPW33 cylindrical roller bearing to meet your urgent maintenance needs. This 170mm ID bearing is engineered for heavy radial loads in construction machinery applications, where reliability under extreme conditions is non-negotiable. Our ISO 9001 quality inspection process ensures every unit meets SKF’s strict performance standards before shipping.
Engineered for Heavy-Duty Construction Machinery Performance
The NNU4934 BK/SPW33 excels in high-load, moderate-speed applications typical in construction equipment. Its cylindrical roller design provides superior radial load capacity, making it ideal for use in gearboxes, differential drives, and axle assemblies of excavators and loaders. The open configuration allows for adequate lubrication circulation in dusty job site environments, while the robust cage design maintains roller alignment under shock loads.
Technical Details That Maximize Equipment Uptime
The 170mm inner diameter (ID) of this SKF cylindrical roller bearing ensures precise shaft fit, critical for minimizing vibration and extending equipment life. Its single-row structure balances load capacity with compact installation requirements—essential in space-constrained machinery components. The “BK” designation indicates a machined brass cage, which offers excellent heat resistance and dimensional stability compared to plastic alternatives, ensuring consistent performance in temperature-fluctuating environments.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Non-genuine bearings often fail prematurely, costing 5-10 times their purchase price in downtime and repairs. A counterfeit NNU4934 bearing might save initial costs but risks catastrophic failure in heavy machinery, leading to secondary component damage and project delays. Our authentic SKF bearings come with full traceability documentation, ensuring compliance with equipment manufacturers’ warranty requirements and avoiding costly rejected insurance claims.
Why 1,200+ Global Clients Trust Our Bearing Solutions
As dual-brand authorized distributors for SKF and Timken, we provide verified authenticity through direct supply chain relationships. Our quality control system includes incoming batch inspections and pre-shipment verification, ensuring every bearing meets ISO 9001 standards. With 55+ country coverage and centralized warehousing, we deliver emergency parts to construction sites in Australia, Russia, Saudi Arabia, and beyond within 3-7 business days. Our cross-brand technical team supports 24/7选型咨询, helping clients avoid costly application errors.
Packaging & Shipping
- Original SKF packaging with product certification and batch traceability documentation
- Reinforced outer carton for international shipping protection
- 3-7 business day delivery to core markets including Australia, Russia, and Saudi Arabia
- DHL, FedEx, and UPS shipping options with full tracking
- 1 unit minimum order quantity, ideal for emergency repairs
Get Your NNU4934 Bearing Shipped Today
Every day your construction equipment sits idle costs money. Our in-stock NNU4934 BK/SPW33 bearings are ready for immediate dispatch. Provide your equipment model and required quantity, and our team will confirm compatibility and deliver a quote within 24 hours.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with original packaging and traceability documentation to verify authenticity.
Q: How do I confirm this bearing fits my equipment?
A: Provide your machinery model or existing bearing part number, and our technical team will cross-verify compatibility at no charge.
Q: What is your warranty policy?
A: We honor SKF’s original manufacturer warranty, covering manufacturing defects with replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, supporting emergency maintenance requirements.
Q: How quickly can you ship to Australia?
A: In-stock items ship within 3 business days via DHL, with typical delivery to Australian addresses in 5-7 days.
Q: How can I verify the bearing’s authenticity upon arrival?
A: Check for SKF’s holographic label on packaging and verify the batch code through SKF’s official website. We provide full certification documents with each order.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
