Japan N2304EM NTN Cylindrical Roller Bearing High Precision
Specifications
| Inner Diameter | 20 mm |
| Outer Diameter | 52 mm |
| Thickness | 25 mm |
Introduction
Premium Japan-made N2304EM series cylindrical roller bearing from NTN. High precision and durability for industrial applications. Includes NJ2304EM, NF2304EM, NU2304EM, and NUP2304EM variants. Ideal for heavy radial load environments with smooth operation and long service life.
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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 Dimension | Medium and Large (120-190mm) |
| Load Direction | Axial Bearing |
| Clearance | C0, C2, C3, C4, C5 |
| Trademark | KOYO, NTN, NSK, TIMKEN |
Introduction
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Product Parameters
| Model NO. | SL185024PP |
| Material | Bearing Steel |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Origin | Japan, USA |
Specifications
| Bore Diameter | 30 mm |
| Outer Diameter | 90 mm |
| Width | 23 mm |
| Roller Type | Cylindrical |
| Load Capacity | High Radial Load |
| Application | Motor, Water Pump |
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Product Parameters
| Model NO. | NU208 EM |
| Material | Bearing Steel |
| Outer Dimension | Small and Medium-Sized (60-115mm) |
| Load Direction | Axial Bearing |
| Hardness | 60-64 HRC |
| Origin | Japan, USA |
Product Introduction
High-quality NU208 EM bearing with bearing steel construction (60-64 HRC hardness). Features small and medium-sized outer dimension (60-115mm), axial load direction, and options from top brands like KOYO, NTN, NSK, TIMKEN. Suitable for various industrial applications with reliable performance.
Product Introduction
High-quality bearing with model NCF2936, crafted from durable Bearing Steel (60-64 HRC). Designed for axial load applications, featuring separated structure and versatile clearance options (C0 C2 C3 C4 C5). Available with Brass or Steel cages, suitable for various industrial uses.
Product Parameters
| Model NO. | NCF2936 |
| Material | Bearing Steel |
| Load Direction | Axial Bearing |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Hardness | 60-64 HRC |
Product Parameters
| Model | Deep Groove Ball Bearing |
| Dimensions | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Features | Long Life, High Speed, Low Noise |
| Precision | P0 P6 P5 P4 |
| Seals Type | Open/Zz/2RS |
Product Introduction
High-quality deep groove ball bearing with medium and large dimensions (120-190mm). Made of durable bearing steel, featuring long life, high speed and low noise. Available in precision grades P0-P4 and seal types Open/Zz/2RS. Ideal for various industrial applications requiring reliable performance.
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High-quality bearing with model N1022, crafted from durable Bearing Steel (60-64 HRC). Features separable design, multiple clearance options (C0-C5), and cages in Brass/Steel. Suitable for various applications with reliable performance.
Product Parameters
| Model NO. | N1022 |
| Material | Bearing Steel |
| Hardness | 60-64 HRC |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
Product Introduction
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| Model NO. | NN3024K |
| Material | Bearing Steel |
| Load Direction | Axial Bearing |
| Hardness | 60-64 HRC |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
Product Parameters
| Model NO. | NU210 |
| Material | Bearing Steel |
| Outer Dimension | Small and Medium-Sized (60-115mm) |
| Load Direction | Axial Bearing |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
Introduction
NU210 bearing features bearing steel construction with 60-64 HRC hardness. Suitable for axial loads, it offers multiple clearance options (C0-C5) and cage materials (brass/steel). Available with vibration grades Z1V1-Z3V3, ensuring reliable performance. Originating from Japan/USA, it’s packaged in single boxes, plastic barrels, cartons or trays, with annual production capacity of 200000PCS.
Product Introduction
This bearing features medium and large outer dimensions (120-190mm), made of high-quality Bearing Steel with a Steel Cage. It offers long life, high speed, and low noise performance, suitable for various industrial applications requiring reliable rotation.
Key Specifications
| Model NO. | bearing |
| Material | Bearing Steel |
| Outer Dimension | Medium and Large(120-190mm) |
| Feature | Long Life, High Speed, Low Noise |
| Seals Type | Open/Zz/2RS |
| Precision | P0 P6 P5 P4 |
Product Parameters
| Model NO. | F-201872 |
| Material | Bearing Steel |
| Outer Dimension | Small and Medium-Sized (60-115mm) |
| Load Direction | Axial Bearing |
| Hardness | 60-64 HRC |
| Trademark | KOYO, NTN, NSK, TIMKEN |
Introduction
This high-quality axial bearing (Model F-201872) features bearing steel construction with 60-64 HRC hardness, ensuring durability. Suitable for small and medium applications (60-115mm outer dimension), it comes from trusted brands like KOYO, NTN, NSK, TIMKEN. Ideal for various industrial uses with reliable performance.
Product Parameters
| Model NO. | F-230877 |
| Material | Bearing Steel |
| Outer Dimension | Small and Medium-Sized (60-115mm) |
| Load Direction | Axial Bearing |
| Hardness | 60-64 HRC |
| Trademark | KOYO, NTN, NSK, TIMKEN |
Introduction
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