Needle Roller Bearings NAV4909-NAV4914 High Load Capacity
Specifications
| Bore Diameter | 45 mm |
| Outer Diameter | 68 mm |
| Thickness | 22 mm |
Overview
Precision needle roller bearings suitable for high-load, compact applications. Models include NA4909, NA4910, NA4911, NA4912, and NA4914. Ideal for industrial machinery and automotive systems requiring reliable radial load performance.
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- Size Guide
Size Guide
DRESSEST-SHIRTBOTTOMSDRESSESSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
T-SHIRTSize Chest Waist Hips 2XS 32 26 32 XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 All measurements are in INCHES
and may vary a half inch in either direction.
BOTTOMSSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
- Delivery & Return
Delivery
Store delivery FREE
1-3 working days
Home or collection point from £35.00 FREE
On all your orders for home or collection point delivery
Returns
Return
We will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).
Returns in store FREE
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
- Ask a Question
Basic Info.
WHY KOYOSKF BEARINGS
In order to supply even more stable quality to our vast customers, we established a factory in Liao Cheng city,Shandong province.
Beside standard specifications, we also provide the customized service.Welcome all of customers visit our factory . We look forward to establishing a good long-termbusiness relationship with you.
KOYOSKF Bearing Manufacturer Show
In addition to our own production of bearings, bearing manufacturers, we have established as many as 600 partnerships; if there is a demand in the world, we will purchase to meet the needs of different customers.
FAQ
Frequently Asked Questions
Yes—we customize size, material, precision, or branding per your needs. Samples are provided for confirmation before mass production.
- Our products hold ISO 9001, TS 16949, and DIN/SAE certifications. We conduct strict inspections from raw materials to pre-shipment.
Standard lead time: 15–30 working days. Urgent orders can be expedited to 7–15 days (subject to feasibility).
All products come with a 12–24 month warranty. We offer free replacement/repair for quality issues, with 24-hour response.
We support T/T (30% deposit + 70% balance), L/C, and PayPal (small orders). Transactions are secured via trusted channels.
MOQ varies by product type—starting from 100 units for standard items. Flexible MOQ for long-term partners or customized orders.
WHAT OUR CLIENTS SAY
James Cooper
KOYO bearings are durable and precise; their stable performance cuts our downtime greatly, and your reliable supply wins our trust.
Lisa Morgan
KOYO bearings boast excellent quality; their long service life reduces our replacement costs, and your professional service makes cooperation smooth.
Mike Wilson
KOYO bearings run steadily and well; their high precision fits our equipment perfectly, and your on-time delivery never lets us down.
Emma Clark
KOYO bearings are top-grade and reliable; their anti-wear feature boosts efficiency, and your thoughtful after-sales support gives us reassurance.
John Smith
KOYO bearings exceed our expectations; their sturdy quality adapts to heavy work, and your consistent supply secures our production.
Anna White
KOYO bearings are premium and durable; their stable operation meets strict demands, and your sincere service makes us a steady partner.
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| Outer Diameter | 16 mm |
| Thickness | 28.2 mm |
Introduction
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Product Parameters
| Model NO. | NHF04, NHF06, NHF08, NHF10, NHF12 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Style | Without/With Outer Ring, Without/With Inner Ring |
| Application | Transmission, Instrumentation, Electrical |
| Origin | Japan |
Product Introduction
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Specifications
| Inner Diameter | 10 mm |
| Outer Diameter | 22 mm |
| Thickness | 6 mm |
Description
High-quality needle roller bearing with compact design for high load capacity and durability in industrial and automotive applications.
Specifications
| Bore Diameter | 140 mm |
| Outer Diameter | 190 mm |
| Width | 60 mm |
| Dynamic Load Rating | 152 kN |
| Static Load Rating | 178 kN |
| Weight | 3.9 kg |
Description
High-performance needle roller bearing suitable for heavy radial loads with compact design. Ideal for industrial and automotive applications requiring durability and precision.
Product Parameters
| Model NO. | NK152512 |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Type | Open |
| Origin | Japan |
| Application | Transmission, Instrumentation, Electrical |
Product Introduction
This high-precision radial bearing (Model: NK152512) is made of premium bearing steel, designed as an open type for reliable performance. Originating from Japan, it is suitable for transmission, instrumentation, and electrical applications. With precision grades Z1V1-Z3V3 and multiple style options, it meets industrial standards, backed by trusted trademarks IKO, NSK, NTN.
Product Parameters
| Model NO. | HF081412 |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Origin | Japan |
| Applications | Transmission, Instrumentation, Electrical |
| Trademark | IKO NSK NTN |
Product Introduction
This high-precision radial bearing (Model: HF081412) is crafted from premium bearing steel, originating from Japan with trusted trademarks IKO, NSK, and NTN. Designed for transmission, instrumentation, and electrical applications, it ensures reliable performance in various industrial settings.
Product Introduction
This bearing, model NATB5903, is made of high-quality Bearing Steel and originates from Japan. It features an Open type design with precision grades Z1V1, Z2V2, Z3V3, suitable for Transmission, Instrumentation, and Electrical applications. Trusted trademarks include IKO, NSK, and NTN.
Product Parameters
| Model NO. | NATB5903 |
| Material | Bearing Steel |
| Type | Open |
| Precision | Z1V1 Z2V2 Z3V3 |
| Application | Transmission, Instrumentation, Electrical |
| Origin | Japan |
Specifications
| Bore Diameter | Inner dimension for shaft fit |
| Outer Diameter | Overall outer dimension |
| Thickness | Cross-sectional width |
Description
Precision needle roller bearings ideal for high-load, compact applications. Models include 624705, 624802, 624804, and 624805. Designed for durability and smooth operation in industrial machinery.
Specifications
| Inner Diameter | 45 mm |
| Outer Diameter | 62 mm |
| Thickness | 20 mm |
Overview
Precision-engineered needle roller bearings ideal for high-load, compact applications. Models RNA4909, RNA4910, and RNA4911 offer durability and smooth performance in demanding environments.
Product Parameters
| Model NO. | HK1514AS |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Origin | Japan |
| Application | Transmission, Instrumentation, Electrical |
Product Introduction
This high-quality radial bearing (Model: HK1514AS) is made of durable bearing steel and originates from Japan. It is suitable for transmission, instrumentation, and electrical applications, ensuring reliable performance. With multiple style options and precision grades (Z1V1, Z2V2, Z3V3), it meets various industrial needs. Packaged according to industrial standards, it is a trusted choice for your equipment.
Product Parameters
| Model NO. | AS751001 |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Origin | Japan |
| Applications | Transmission, Instrumentation, Electrical |
Product Introduction
This high-precision radial bearing (Model: AS751001) is crafted from premium bearing steel, ensuring durability and reliable performance. Originating from Japan, it features multiple style options (with/without inner/outer rings) and precision grades (Z1V1-Z3V3). Ideal for transmission systems, instrumentation, and electrical applications, it meets industrial standards with a production capacity of 200,000PCS/Year. Trusted trademarks include IKO, NSK, NTN.
Specifications
| Inner Diameter | 60 mm |
| Outer Diameter | 80 mm |
| Thickness | 24 mm |
Description
Precision needle roller bearings suitable for high load and compact applications. Models include RNA4912, RNA4913, and RNA4914, designed for durability and smooth operation in industrial machinery.






