Deep groove ball bearing manufacturer comparison

Most consumers believe that only brand-name products guarantee quality. For consumers, it is an expression of their lifestyle. In the industry, competitiveness is considered a basis for decision-making. That’s why people take a closer look at mass-produced products to see what they’re getting for their money. Findling Wälzlager leaves nothing to chance with manufacturer comparisons on its performance test rig. The differences are revealed without compromise.

Findling has been carrying out comprehensive product tests in different variants since early 2010. Bearing types from the same ABEG® performance class of different manufacturers, bearings from one manufacturer in the four individual performance classes, one performance class each of a specific bearing type or bearing tests according to customer requirements. One of the most recent test series consisted of a comparison of type 6008 deep groove ball bearings from various manufacturers. It was shown that products from manufacturers who are still largely unknown are in no way inferior to those of well-known global players, except in terms of price.

The test rig consists of two parallel stations that can each be equipped with two bearings. In one case, type 6008 deep groove ball bearings from a premium provider were checked for the desired performance values along with ones from manufacturers of the ABEG® performance class Supra. At a speed of 2,500 rpm, a radial force of Fr = 10 kN, and an axial force of Fa = 2 kN, the test time of 33 hours from reaching the starting temperature of 50 °C corresponded to the reference test time of the Premium products. The result after 33 hours and 16 minutes: minimal signs of wear on the inner ring raceway that can’t be documented photographically, no noticeable wear on the rolling elements. A second round of 42 hours and 16 minutes, this time only with Supra bearings, had the same result. The theoretical service life of a Premium product was exceeded by 27 percent. Users thus benefit from a bearing solution that reliably meets the technical requirements but, as a product in the Supra class, is remarkably less expensive than comparable bearings in a higher performance class.

Convinced by these and other test series, Findling now offers these ball bearings from the 68, 69, 60, 62 and 63 series in two series ex stock: standard (100 percent noise-tested according to at least Z2V2, C0 bearing clearance and P0 tolerance class) and CMM (Z3V2 noise-tested, CM reduced bearing clearance and dimensional tolerance according to P6). The deep groove ball bearings are suitable for electric motors and tools, rotary encoders, household appliances, air-conditioning systems, fans, office equipment, and medical technology. A special product line equipped with a special grease with heavy-duty additives (EP additive) is available for heavy-duty applications such as crane construction, construction machinery or conveying technology.