# JNR Class EF60

> class of Japanese electric locomotives

**Wikidata**: [Q3892959](https://www.wikidata.org/wiki/Q3892959)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/JNR_Class_EF60)  
**Source**: https://4ort.xyz/entity/jnr-class-ef60

## Summary
The JNR Class EF60 is a class of Japanese electric locomotives designed for heavy freight and passenger services, notable for their high power output and distinctive Bo′Bo′Bo′ wheel arrangement. Manufactured by companies including Toshiba, Kawasaki, and Mitsubishi, a total of 143 units were produced between 1957 and 1977. They operated under Japanese National Railways (JNR) and later regional JR companies until their retirement by 2012.

## Key Facts
- **Total produced**: 143 units (1957–1977).
- **Operators**: Japanese National Railways (JNR), East Japan Railway Company (JR East), and West Japan Railway Company (JR West).
- **Manufacturers**: Toshiba, Kawasaki Railcar Manufacturing, Mitsubishi Heavy Industries, Toyo Electric, and Kisha Seizo.
- **Wheel arrangement**: Bo′Bo′Bo′ (three bogies with two axles each).
- **Electrification**: 1500 V DC via overhead contact lines.
- **Track gauge**: 1067 mm (narrow gauge).
- **Primary roles**: Heavy freight haulage and limited-stop passenger services.
- **Withdrawal**: Final units retired by 2012.

## FAQs
### Q: Who manufactured the JNR Class EF60 locomotives?
A: The EF60 was built by a consortium of Japanese manufacturers, including Toshiba, Kawasaki, Mitsubishi Heavy Industries, Toyo Electric, and Kisha Seizo.

### Q: What type of electrification did the EF60 use?
A: The locomotives operated on 1500 V DC power supplied via overhead contact lines.

### Q: When were the EF60 locomotives retired from service?
A: The last EF60 units were withdrawn by 2012, marking the end of their 55-year operational career.

## Why It Matters
The JNR Class EF60 played a critical role in Japan’s postwar rail network, enabling efficient freight transport and high-speed passenger services on challenging terrain. Its robust design and high tractive effort addressed the demands of Japan’s mountainous routes, contributing to the growth of industrial and commercial logistics. As one of the most powerful electric locomotives of its era, the EF60 symbolized Japan’s engineering advancements and supported the country’s rapid economic expansion. Its longevity—spanning over five decades—highlighted its reliability and adaptability, even as rail operations transitioned from JNR to privatized JR companies.

## Notable For
- **High power output**: Designed to handle heavy loads on steep gradients, critical for Japan’s mountainous railways.
- **Unique wheel arrangement**: The Bo′Bo′Bo′ configuration provided exceptional stability and traction.
- **Long service life**: Operated from the late 1950s until 2012, with some units preserved as heritage exhibits.
- **Multi-manufacturer collaboration**: Represented a cooperative effort among Japan’s leading industrial firms.

## Body
### Development
The EF60 was introduced in 1957 to replace older locomotives and meet rising freight demands. Production continued until 1977, with 143 units manufactured by a consortium of Japanese firms. The class was designed for versatility, capable of hauling both freight and high-speed passenger trains like the *Blue Train* overnight services.

### Technical Specifications
- **Voltage**: 1500 V DC via overhead lines.
- **Track gauge**: 1067 mm (standard for Japanese railways).
- **Weight**: Approximately 96–100 tons, depending on sub-type.
- **Power output**: 3,300 kW (4,400 hp) from 12 electric traction motors.

### Operational History
EF60s were primarily deployed on trunk lines such as the Tokaido and Joetsu routes. Their ability to maintain speed on steep inclines made them indispensable for freight transport. Following JNR’s privatization in 1987, remaining EF60s were transferred to JR East and JR West, where they continued in secondary roles until full retirement by 2012. Several units are preserved at museums and railway facilities, commemorating their historical significance.