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Product Description

Product Description

Cylindrical Roller Bearing HKR29D HKR29C HKR29E HKR29F HKR59E HKR59F Eccentric Bearing without Outer Ring

  Cylindrical roller bearings are designed to support heavy radial loads and operate efficiently at high speeds. These bearings typically feature separable inner and outer rings, allowing for easier installation, maintenance, and replacement in industrial equipment.
Different structural designs such as N, NU, NJ, and NUP types allow the bearings to accommodate various axial displacement requirements. N and NU types permit axial movement between the shaft and housing, making them suitable for floating bearing positions, while NJ and NUP types can provide axial location for the shaft in one or both directions. This structural flexibility enables cylindrical roller bearings to be widely used in many mechanical systems.
Cylindrical roller bearings are commonly applied in electric motors, industrial gearboxes, pumps, compressors, machine tools, mining equipment, conveyors, fans, and heavy-duty transmission systems.

Technical Notes

Bearing No	Brand	Size
NUP 306 ECJ	TFL	30 mm x 72 mm x 19 mm
NUP 306 ECM	TFL	30 mm x 72 mm x 19 mm
NUP 306 ECML	TFL	30 mm x 72 mm x 19 mm
NUP 306 ECNJ	TFL	30 mm x 72 mm x 19 mm
NUP 306 ECP	TFL	30 mm x 72 mm x 19 mm
N 207 ECM	TFL	35 mm x 72 mm x 17 mm
N 207 ECP	TFL	35 mm x 72 mm x 17 mm
N 2207 ECM	TFL	35 mm x 72 mm x 23 mm
N 307 ECM	TFL	35 mm x 80 mm x 21 mm
N 307 ECP	TFL	35 mm x 80 mm x 21 mm
NF 307 ECP	TFL	35 mm x 80 mm x 21 mm
NJ 207 ECJ	TFL	35 mm x 72 mm x 17 mm
NJ 207 ECM	TFL	35 mm x 72 mm x 17 mm
NJ 207 ECML	TFL	35 mm x 72 mm x 17 mm
NJ 207 ECP	TFL	35 mm x 72 mm x 17 mm
NJ 207 ECPH	TFL	35 mm x 72 mm x 17 mm
NJ 2207 ECJ	TFL	35 mm x 72 mm x 23 mm
NJ 2207 ECML	TFL	35 mm x 72 mm x 23 mm
NJ 2207 ECP	TFL	35 mm x 72 mm x 23 mm
NJ 2207 ECPH	TFL	35 mm x 72 mm x 23 mm
NJ 2307 ECP	TFL	35 mm x 80 mm x 31 mm
NJ 2307 ECPH	TFL	35 mm x 80 mm x 31 mm
NJ 307 ECJ	TFL	35 mm x 80 mm x 21 mm
NJ 307 ECM	TFL	35 mm x 80 mm x 21 mm
NJ 307 ECML	TFL	35 mm x 80 mm x 21 mm
NJ 307 ECP	TFL	35 mm x 80 mm x 21 mm
NJ 307 ECPH	TFL	35 mm x 80 mm x 21 mm
NU 1007 ECP	TFL	35 mm x 62 mm x 14 mm
NU 1007 ECPH	TFL	35 mm x 62 mm x 14 mm
NU 207 ECJ	TFL	35 mm x 72 mm x 17 mm
NU 207 ECM	TFL	35 mm x 72 mm x 17 mm
NU 207 ECML	TFL	35 mm x 72 mm x 17 mm
NU 207 ECP	TFL	35 mm x 72 mm x 17 mm
NU 207 ECPH	TFL	35 mm x 72 mm x 17 mm
NU 2207 ECJ	TFL	35 mm x 72 mm x 23 mm
NU 2207 ECML	TFL	35 mm x 72 mm x 23 mm
NU 2207 ECP	TFL	35 mm x 72 mm x 23 mm
NU 2207 ECPH	TFL	35 mm x 72 mm x 23 mm
NU 2307 ECJ	TFL	35 mm x 80 mm x 31 mm
NU 2307 ECP	TFL	35 mm x 80 mm x 31 mm
NU 2307 ECPH	TFL	35 mm x 80 mm x 31 mm
NU 307 ECJ	TFL	35 mm x 80 mm x 21 mm
NU 307 ECM	TFL	35 mm x 80 mm x 21 mm
NU 307 ECML	TFL	35 mm x 80 mm x 21 mm
NU 307 ECP	TFL	35 mm x 80 mm x 21 mm
NU 307 ECPH	TFL	35 mm x 80 mm x 21 mm
NUP 207 ECJ	TFL	35 mm x 72 mm x 17 mm
NUP 207 ECM	TFL	35 mm x 72 mm x 17 mm
NUP 207 ECML	TFL	35 mm x 72 mm x 17 mm

Product Features

1. High Load Capacity: Line contact between rollers and raceways allows the bearing to support heavy radial loads.
2. High Speed Operation: Optimized internal design ensures stable performance and low friction at high speeds.
3. Easy Installation: A separable inner and outer ring structure simplifies mounting and maintenance.
4. Axial Displacement Capability: Different structures allow axial movement or shaft positioning when required.
5. Wide Industrial Applications: Widely used in motors, gearboxes, pumps, compressors, conveyors, and other machinery.

Applications

Engineered to seamlessly accommodate shaft thermal expansion, our cylindrical roller bearings (NU series) are ideal for the non-drive end of electric motors in:

Main Industries:

Electric Motor Manufacturing
Power Generation
HVAC Systems
Key Equipment:

Non-Drive End (NDE) of AC/DC Motors
High-Speed Spindle Motors 
Industrial Fan & Blower Motors 
Centrifugal Pump Motors 

Why Choose Us

OEM & Cross-Reference

FAQ

Q1: What quality certifications do your manufacturing facilities hold?
A: Quality is our top priority. All our production bases operate strictly under the ISO 9001:2015 Quality Management System for standard industrial manufacturing. Furthermore, for high-precision and automotive-grade bearings, our facilities are fully certified with IATF 16949. This ensures rigorous defect control, continuous improvement, and world-class reliability for every bearing you receive.

Q2: Do you accept OEM/ODM? Can you produce non-standard bearings?
A: Absolutely. Non-standard customization is one of our core strengths. Just send us your technical drawings, dimensions, or physical samples. Furthermore, we fully support brand customization, including laser marking on bearings and designing custom color boxes to help build your brand identity.
 
Q3: How do you guarantee the bearing quality? Do you accept 3rd-party inspections?
A: We stand behind our quality with a solid 12-Month Warranty from the date of arrival. Any manufacturing defects will be replaced for free. For your complete peace of mind, we 100% welcome Third-Party Inspections (such as SGS, Intertek, or BV) before shipment.
 
Q4: What are your shipping methods?
A: We offer flexible and cost-effective shipping options based on your timeline and budget:
Sea Freight (FCL/LCL): Best for bulk orders (most economical).
Air Freight: Fast delivery for urgent medium-sized orders.
International Express (DHL/FedEx/UPS): Door-to-door service for samples and small parcels.
(We can quote EXW, FOB, CIF, or DDP depending on your needs).
 
Q5: Can I get free samples before placing a bulk order?
A: Yes! We provide FREE samples for standard bearing models so you can test our quality firsthand. You only need to cover the initial international shipping cost, which will be refunded to you when you place your first official bulk order.
 
Q6: What is your standard lead time? 
A: In-stock standard models: Dispatched within 3 to 7 days.
Customized or out-of-stock items: Usually 15 to 30 days, depending on the order quantity and complexity. We always prioritize meeting your project deadlines.