Development of Axle Bearing Lip-type Seal for High-speed Shinkansen Vehicles

Kazuo NAKAMURA; Tetsuya HOSOYA; Sumiko HIBINO; Masanori HANSAKA; Shogo MAMADA; Hirofumi YOSHIDA

doi:10.2219/rtriqr.49.237

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Development of Axle Bearing Lip-type Seal for High-speed Shinkansen Vehicles

Kazuo NAKAMURA, Tetsuya HOSOYA, Sumiko HIBINO, Masanori HANSAKA, Shogo MAMADA, Hirofumi YOSHIDA

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Keywords: rotary shaft lip-type seal, Shinkansen, axle bearing, rubber, lubricating oil

JOURNAL FREE ACCESS

2008 Volume 49 Issue 4 Pages 237-243

DOI https://doi.org/10.2219/rtriqr.49.237

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Abstract

We produced a test-manufactured lip-type seal to suppress outbreaks of flaking (of rubber and filler) on lip contact surfaces as one of a number of measures to cope with increased speeds of 350 - 400 km/h in Shinkansen vehicles. The results of bench testing on its high-speed rotation performance showed no leakage of oil with a number of rotations equivalent to a vehicle running distance of 750,000 km, and the condition of the seal after the test was satisfactory. This rotary shaft lip-type seal was thus confirmed as offering a suitable level of performance for use in high-speed Shinkansen vehicles.

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