Your Best Micro Ball Bearings Manufacturer in China
Over 20 Years Bearing Manufacturing and Customization Experience
Fitrun Bearing has been engaged in the manufacturing of miniature ball bearings since its founding in 2003. We can customize and manufacture proper bearings for your special applications as long as detailed working conditions and installation dimensions are provided.
Large Inventories & Fast Delivery
Fitrun Bearing has two ISO9001:2015 certified ball bearing factories which occupy over 5,300 square meters, where millions of bearings are made annually. We always keep large inventories for most of the standard bearing models, this allows us to deliver your order in a shorter time.
High Quality & Competitive Prices
Our goal always is, to provide high quality but cost-effective ball bearings to our worldwide customers. All of our bearings are RoHS and REACH compliant and gone through 100% inspection before shipping. Free samples are available for you to test our quality before volume order.
Trusted by 200+ Clients from 30+ Countries
Wide Range of Micro Ball Bearings for Your Selection
We are mainly manufacturing ball bearings with bore diameter ranging from 1 to 15 mm, with both metric size and inch size available. Bearing materials are available in chrome steel, stainless steel and ceramic.
Miniature Ball Bearings
FITRUN miniature ball bearings refer to deep groove ball bearings with a bore diameter of 1 to 9 mm, which are available in both metric and inch sizes. They have significant advantages such as high speed, low noise and long life. Miniature ball bearings are also called micro ball bearings, instrument ball bearings and mini ball bearings.
Flange Ball Bearings
Flanged ball bearing is categorized based on its shape. There is a solid steel flange on the outer ring of the bearing, which allows the bearing to be more easily fixed on housing place. The flange helps to prevent the bearing from moving in an axial direction when exposed to axial loads or vibration.
Thrust Ball Bearings
Thrust ball bearing consists of a shaft washer, a housing washer and a cage with ball set assembly. The cage material is brass or stainless steel depending on specific application. FITRUN manufactures micro thrust bearings (miniature thrust bearings) with bore size from 2mm to 12mm, and the bearings are available in FM series (with groove raceway) and F series (with flat raceway).
Miniature Stainless Steel Ball Bearings
Miniature stainless steel ball bearings refer to stainless steel deep groove ball bearings with bore diameter from 1 to 9 mm, outer diameter from 3 to 30 mm. Stainless steel bearings are not easy to rust and have strong corrosion resistance, they are washable and can withstand higher temperature compared to chrome steel bearings. These are AISI440C stainless steel ball bearings; AISI304 and AISI316L stainless steel ball bearings are also available for manufacture.
Micro Ball Bearings Supplier and Solution Provider
Company Name: Dongguan Fitrun Bearing Co., Ltd.
Factory Area: 2 factories, 5300 ㎡
General Manager: Lin Xu
Turnover: US$ 2.5 million (2021)
Business Scope: ball bearing supplier, miniature bearing solution provider