PTO: The Product Types Ontology for Semantic Web-based E-Commerce
type: Ontology
comment: The Product Types Ontology: Good identifiers for product types based on Wikipedia This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia. Vocabulary: http://www.productontology.org/# Namespace: http://www.productontology.org/ The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers. See http://purl.org/goodrelations/ for more information.
label: The Product Types Ontology for Semantic Web-based E-Commerce
contributor: The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia.
creator: Martin Hepp
rights: The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license.
subject: E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia
license: http://creativecommons.org/licenses/by-sa/3.0/
imports: v1
version info: 2026-08-28T18:29:40.951621

Bell housing
type: Class
subclass of: ProductOrService
subclass of: Product
comment: Bellhousing (also "bell-housing" or simply "bell") is a colloquial term for the component that aligns and connects the transmission of a vehicle to its engine, and which covers and protects the flywheel/clutch or flexplate/torque converter. It derives its name from the bell-like shape that those internal components necessitate. The starter motor may mount to it, and it may support clutch and/or shifter linkage. A bellhousing may be a separate housing bolted to the gearbox, or it may be an integral portion of the transmission housing, particularly with front wheel drive transmissions. An integral bell has a front bolt pattern that matches the engine to which it will be paired, and a divorced bell additionally has a rear bolt pattern that matches the gearbox to which it will be paired. The use of different bellhousings on a transmission allows the same transmission to be used on multiple engines in multiple applications. (Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Bell_housing)
label: Kupplungsglocke @de
label: Sprängkåpa @sv
label: 離合器罩 @zh
describedby: Bell housing.rdf
describedby: Bell housing.ttl