Bolt Type Needle Roller Bearings Kr30-Kr47 High Load Capacity
Specifications
| Bore Diameter | 30-47 mm |
| Outer Diameter | Varies by model |
| Thickness | Standard size |
Description
Precision bolt type wheel roller needle cam bearing available in Kr30, Kr32, Kr35, Kr40, and Kr47 models. Ideal for high-load, compact applications requiring smooth rotational motion and durability.
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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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Specifications
| Bore Diameter | 30 mm |
| Outer Diameter | 45 mm |
| Thickness | 20 mm |
| Dynamic Load Rating | 28.5 kN |
| Weight | 0.19 kg |
Description
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Specifications
| Inner Diameter | 22 mm |
| Outer Diameter | 26-27 mm |
| Thickness | 10-17 mm |
Description
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Specifications
| Inside Diameter | 15-30 mm |
| Outside Diameter | Varies by model |
| Thickness | Standard series |
Overview
SKF IKO NUTR series roller bearings offer high precision and durability for industrial applications. Available in multiple sizes (NUTR15 to NUTR30), these bearings ensure reliable performance under radial loads with smooth operation and long service life.
Specifications
| Inner Diameter | 17 mm |
| Outer Diameter | 25 mm |
| Thickness | 17 mm |
Description
High-quality needle roller bearing suitable for Rna4903, Rna4904, and Rna4905 applications. Designed for durability and smooth performance in compact spaces. Ideal for industrial machinery requiring high radial load capacity with minimal space usage.
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. | 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. | 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. | 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 | 55 mm |
| Outer Diameter | 80 mm |
| Thickness | 23 mm |
Description
High-quality needle roller bearing ideal for demanding industrial applications. Compact design with high load capacity ensures reliable performance under continuous use. Suitable for machinery requiring precision and durability.
Product Parameters
| Model NO. | Natv5-PP, Natv6-PP, Natv8-PP, Natv10-PP, Natv12-PP |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Style | Without Outer Ring, With Outer Ring, Without Inner Ring, With Inner Ring |
| Origin | Japan |
| Application | Transmission, Instrumentation, Electrical |
Product Introduction
This bearing series, including models like Natv5-PP to Natv12-PP, features Bearing Steel construction with Radial load capacity. Available in styles with/without inner/outer rings, it originates from Japan. Suitable for Transmission, Instrumentation, and Electrical applications, ensuring reliable performance.
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.
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.




