BDL NK37/30 NK38/20 NK38/30 Needle Roller Bearings High Load Capacity
Specifications
| Bore Diameter | Inner dimensions vary by model |
| Outer Diameter | Specific to NK series size |
| Thickness | Depends on bearing type |
Overview
Precision needle roller bearings from Bdl, including models NK37/30, NK38/20, and NK38/30. Designed for high load capacity with low weight, ideal for compact mechanical systems requiring efficiency and durability in demanding applications.
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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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Product Parameters
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| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Origin | Japan |
| Applications | Transmission, Instrumentation, Electrical |
Product Introduction
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Product Parameters
| Inner Diameter | 10 mm |
| Outer Diameter | 24 mm |
| Thickness | 8 mm |
Description
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Specifications
| Bore Diameter | Inner dimension for shaft fit |
| Outer Diameter | Overall outer dimension |
| Thickness | Cross-sectional width |
Description
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| Inner Diameter | 9 mm |
| Outer Diameter | 12 mm |
| Thickness | 13 mm |
Description
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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
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Specifications
| Inner Diameter | 17 mm |
| Outer Diameter | 25 mm |
| Thickness | 17 mm |
Description
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Product Parameters
| Model NO. | NA4905-XL |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Origin | Japan |
| Application | Transmission, Instrumentation, Electrical |
Introduction
This high-quality radial bearing, model NA4905-XL, is made of durable bearing steel. Originating from Japan, it offers reliable performance for transmission, instrumentation, and electrical applications. With precision grades Z1V1, Z2V2, Z3V3 and multiple style options, it meets industrial standards. Packaged in single box or industrial standard packing, it ensures safe delivery.
Product Parameters
| Model NO. | HK2512 |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Application | Transmission, Instrumentation, Electrical |
| Origin | Japan |
| HS Code | 8482800000 |
Product Introduction
This bearing, model HK2512, is made of high-quality Bearing Steel. As a Radial Bearing, it’s suitable for Transmission, Instrumentation, and Electrical applications. Originating from Japan, it meets industrial standards with HS Code 8482800000, ensuring reliable performance in various mechanical systems.
Specifications
| Bore Diameter | 30 mm |
| Outer Diameter | 45 mm |
| Thickness | 20 mm |
| Dynamic Load Rating | 28.5 kN |
| Weight | 0.19 kg |
Description
Precision needle roller bearing ideal for high load capacity in compact spaces. Model NA4906 offers excellent performance in automotive and industrial applications with smooth operation and durable design.
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| Inner Diameter | 75 mm |
| Outer Diameter | 105 mm |
| Thickness | 36 mm |
Description
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Product Parameters
| Model NO. | KR40 |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Type | Open |
| Origin | Japan |
| Applications | Transmission, Instrumentation, Electrical |
Product Introduction
The KR40 radial bearing, made of high-quality bearing steel, features an open type design. Originating from Japan, it is suitable for transmission, instrumentation, and electrical applications. With reliable performance, it meets industrial standards, ensuring efficient operation in various mechanical systems.
Specifications
| Inner Diameter | 10 mm |
| Outer Diameter | 22 mm |
| Thickness | 6 mm |
Description
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