185 series
The 185 series (Japanese: 185系) was an electric multiple unit (EMU) train type operated by the East Japan Railway Company (JR East) primarily on mid-distance limited express services centering on Tokyo.
| 185 series | |
|---|---|
A 185 series train on a Shonan Liner rapid service in February 2021 | |
| In service | 1981–March 2021 (regular service) |
| Replaced | 153 series |
| Constructed | 1981–1982 |
| Entered service | March 1981 |
| Refurbished | 1993–1998 |
| Scrapped | 2021– |
| Number built | 227 cars |
| Number in service | 6 |
| Successor | E257 series |
| Formation | 5/6/7/10 cars per trainset |
| Operators | JNR (1981–1987) JR East (1987–2021) |
| Depots | Ōmiya |
| Specifications | |
| Car body construction | Steel |
| Car length | 20.28 m (66 ft 6 in) (end cars) 20 m (65 ft 7 in)(intermediate cars) |
| Width | 2,946 mm (9 ft 8.0 in) |
| Height | 4,066 mm (13 ft 4.1 in) |
| Doors | 2 per side |
| Maximum speed | 110 km/h (68.4 mph) |
| Traction system | Resistor control |
| Power output | 120 kW per traction motor |
| Electric system(s) | 1,500 V DC overhead lines |
| Current collector(s) | Lozenge-type pantograph |
| Safety system(s) | ATS-P, ATC, D-ATC |
| Coupling system | Shibata-type |
| Multiple working | 153 series (until 1983) |
| Track gauge | 1,067 mm (3 ft 6 in) |
The class is broadly divided into two variants: 185-0 series for use south-west of Tokyo, and 185-200 series originally for use north of Tokyo.
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