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Jostens. Jostens is an American manufacturer of memorabilia. The company is primarily known for its production of yearbooks [2][3] and class rings [4] for various high schools and colleges as well as championship rings for sports. [5] Jostens also produced photobook products for Disney's PhotoPass photography service offered at Disney theme ...
False brinelling. False brinelling of a bearing. False brinelling is a bearing damage caused by fretting, with or without corrosion, [1] that causes imprints that look similar to brinelling, but are caused by a different mechanism. False brinelling may occur in bearings which act under small oscillations [2] or vibrations.
Rolling-element bearings often work well in non-ideal conditions, but sometimes minor problems cause bearings to fail quickly and mysteriously. For example, with a stationary (non-rotating) load, small vibrations can gradually press out the lubricant between the races and rollers or balls (false brinelling). Without lubricant the bearing fails ...
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A jewel bearing is a plain bearing in which a metal spindle turns in a jewel -lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. The jewels are typically made from the mineral corundum, usually either synthetic sapphire or synthetic ruby. Jewel bearings are used in precision instruments ...
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Timken Research was created in 1966 to establish technological leadership and to help standardize research and development processes across the company. [12] Timken expanded into new global markets throughout the 1970s and 1980s, establishing a sales operation in Japan in 1974 [13] and opening sales offices in Italy, Korea, Singapore and ...
NTN BEARPHITE (TM) bearings are fluid hydrodynamic bearings made from sintered material whose sliding bore surface has hydrodynamic grooves shaped like herringbones, which permit higher rotational accuracy at faster speeds. Such bearings are used in audiovisual equipment, automotive electrical equipment, household appliances and office ...