1688 Wholesale Na4834 51220 Na5915 Needle/Roller Bearing and Thrust Ball Bearing

• Inner Size: 170mm
• Outer Size: 215mm
• Width: 45mm
• Delivery Time: Within 7 Working Days
• Payment: T/T, L/C
• Weight: 2.5kg
• Model NO.: NA4834 51220 NA5915
• Service: 24 Hours
• Stock: Instock
• OEM: Support
• Model: Na4834 51220 Na5915
• Price: 3.3
• Transmission: on Demand
• Application: Machine
• Address: Shandong
• Brand: Haisai
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Outer Dimension: Medium and Large(120-190mm)
• Material: Bearing Steel
• Spherical: Aligning Bearings
• Load Direction: Radial Bearing
• Separated: Separated
• Transport Package: Neutral Packing
• Specification: 0.99kg
• Trademark: Haisai
• Origin: Shandong, China
• HS Code: 8482101000
• Production Capacity: 50000pieces/Month

Product Description

Product Detail

Needle roller bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. Although it has a small cross-section, the bearing still has a high load-bearing capacity. Needle roller bearings are equipped with thin and long rollers, so the radial structure is compact. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter is the smallest. It is especially suitable for support structures with limited radial installation dimensions.
Depending on the application occasion, a bearing without an inner ring or a needle roller and cage assembly can be selected. At this time, the journal surface and the housing hole surface matched with the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure the load capacity and running performance are the same as those of bearings with rings, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing.

Product Profile

model	NA4834
inner size	170mm
outer size	215mm
width	45mm
weight	2.5kg

model	51220
inner size	100mm
outer size	150mm
width	38mm
weight	2.36kg

model	NA5915
inner size	75mm
outer size	105mm
width	40mm
weight	1.03kg

Company Profile
Haisai bearing is a regular model industrial manufacturing enterprise integrating bearing product research and development, design, manufacturing, import and export trade. The company was founded in 1998, covers an area of more than 90,000 square meters, plant area of more than 20,000 square meters, more than 200 employees, more than 20 technical engineers, has passed the international/SO9001:2008,1SO/TS16949:2009 and other quality management system certification. In addition, we have two factories (located in Shanghai and Liaocheng respectively) and a trading company. We have completed the high-speed forging of bearing steel dock, automatic high-precision grinding, cryoquenching, unitized automatic constant temperature grinding, intelligent assembly and so on, complete profession production. The product size from 30mm-750mm covers single and double row tapered roller bearing, British garden taper roller bearing, deep groove ball bearing, stainless steel shaft reducer special bearings, agricultural equipment bearings, a total of more than 2500 specifications of products.
We have a professional team of excellent quality, the technical center is equipped with all kinds of testing machines, high-precision testing instruments,material analysis instruments and more than 60 sets, for users to design develop, trial-produce all kinds of special purpose bearings, and do our best to provide high-end customers around the world with the best solutions and good after-sales service!
We has many years of experience in the industrial field of bearing supporting and industrial service, the products are exported to the United States, Germany, Italy, France, the Czech Republic, Russia and other European and American countries and supporting enterprises. We both at home and abroad enjoy a good business reputation!
We promise to be responsible for every set of bearings and industrial products sold! Make every customer satisfied, is our constant pursuit!
Company Detail
Digital Workshop

Stock

Certification

Our company is a large-scale industrial manufacturing enterprise integrating bearing product research and development, design, manufacturing, import and export trade. The company was established in 1998, covering an area of more than 90,000 square meters, with a workshop area of more than 20,000 square meters, more than 200 employees, and more than 20 technical engineers. It has passed international/SO9001: 2008, 1SO/TS16949:2009 and other quality management system certifications.
The company has length measuring instruments, profilers, roundness meters, hardness meters, 3D imagers, vibration meters, flaw detectors, metallographic microscopes and other inspection instruments to meet the requirements of product performance testing, 100% raw material ultrasonic flaw detection, size and shape accuracy inspection, and large-scale bearing magnetic particle flaw detection.
The company has a professional team with excellent quality. The technical center is equipped with more than 60 sets of various testing machines, high-precision testing instruments, and material analysis instruments. It can design, develop, and trial-manufacture various special-purpose bearings for users.

Transport
Q&A
Q:What's your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1. Replacements would be sent with goods of your next order;
2. Refund for defective products if customers require.

Q:Do you accept ODM&OEM orders?
A: Yes, we provide ODM&OEM services to worldwide customers, we also customize OEM box and packing as your requirements.

Q:What's the MOQ?
A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.

Q:How long is the lead time?
A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.

Q:Do you offer free samples? 
A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight. We DO NOT offer free samples to end users. 

Q:How to place order?
A: 1. Email us the model, brand and quantity,shipping way of bearings and we will quote our best price for you; 
2. Proforma Invoice made and sent to you as the price agreed by both parts; 
3. Deposit Payment after confirming the PI and we arrange production; 
4. Balance paid before shipment or after copy of Bill of Loading.