Property talk:P2557

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stroke
length of the motion in reciprocating engines and other mechanisms

Represents	stroke length (Q56296612)
Data type	Quantity
Template parameter	"stroke" in en:template:infobox_automobile_engine
Domain	reciprocating engine (Q630010), compressors, other machines with pistons (note: this should be moved to the property statements)
Allowed values	positive value with distance unit (eg. mm) (note: this should be moved to the property statements)
Allowed units	Instances of: unit of length millimetre (Q174789) or inch (Q218593)
Example	Wärtsilä-Sulzer RTA96-C (Q1625442) → 2,500 millimetre Renault 4P (Q3425006) → 140 millimetre
Robot and gadget jobs	consistency check (positive number with distance unit), import from inboxes
Tracking: usage	Category:Pages using Wikidata property P2557 (Q28648940)
See also	bore (P2556), engine displacement (P8628)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2557 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,168 Main statement 1,143 97.9% of uses Qualifier 25 2.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Units: “millimetre (Q174789), inch (Q218593)”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2557#Units

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2557#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2557#Scope, SPARQL