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 # Class FrictionBall

 Last update: 16.07.2025 

Namespace: [VM.API.Pre](VM.API.Pre.md)  
Assembly: VM.API.Pre.dll

This class represents the friction ball

```csharp
public class FrictionBall : FrictionRevolute

```

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← [Friction](VM.API.Pre.Friction.md) ← [FrictionRevolute](VM.API.Pre.FrictionRevolute.md) ← [FrictionBall](VM.API.Pre.FrictionBall.md)

#### Inherited Members

[FrictionRevolute.FrictionArm](VM.API.Pre.FrictionRevolute.md#VM_API_Pre_FrictionRevolute_FrictionArm), [FrictionRevolute.BendingReactionArm](VM.API.Pre.FrictionRevolute.md#VM_API_Pre_FrictionRevolute_BendingReactionArm), [FrictionRevolute.PinRadius](VM.API.Pre.FrictionRevolute.md#VM_API_Pre_FrictionRevolute_PinRadius), [FrictionRevolute.PreTorque](VM.API.Pre.FrictionRevolute.md#VM_API_Pre_FrictionRevolute_PreTorque), [Friction.FrictionCoefficient](VM.API.Pre.Friction.md#VM_API_Pre_Friction_FrictionCoefficient), [Friction.StaticFrictionCoefficient](VM.API.Pre.Friction.md#VM_API_Pre_Friction_StaticFrictionCoefficient), [Friction.DynamicsThreshold](VM.API.Pre.Friction.md#VM_API_Pre_Friction_DynamicsThreshold), [Friction.StictionVelocity](VM.API.Pre.Friction.md#VM_API_Pre_Friction_StictionVelocity), [Friction.MaxStictionDeformation](VM.API.Pre.Friction.md#VM_API_Pre_Friction_MaxStictionDeformation), [Friction.FrictionEffect](VM.API.Pre.Friction.md#VM_API_Pre_Friction_FrictionEffect), [Friction.ReactionForce](VM.API.Pre.Friction.md#VM_API_Pre_Friction_ReactionForce), [Friction.BendingMoment](VM.API.Pre.Friction.md#VM_API_Pre_Friction_BendingMoment)

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects<T>(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### FrictionBall()

Default constructor

```csharp
public FrictionBall()

```

### FrictionBall(ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, EffectType, bool, bool, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable)

Default constructor

```csharp
public FrictionBall(ExpressionValueVariable frictionCoefficient, ExpressionValueVariable staticFrictionCoefficient, ExpressionValueVariable dynamicsThreshold, ExpressionValueVariable stictionVelocity, ExpressionValueVariable maxStictionDeformation, Friction.EffectType frictionEffect, bool reactionForce, bool bendingMoment, ExpressionValueVariable frictionArm, ExpressionValueVariable bendingReactionArm, ExpressionValueVariable ballRadius, ExpressionValueVariable preTorque)

```

#### Parameters

`frictionCoefficient` ExpressionValueVariable

The friction coefficient.

`staticFrictionCoefficient` ExpressionValueVariable

The static friction coefficient.

`dynamicsThreshold` ExpressionValueVariable

The dynamics threshold.

`stictionVelocity` ExpressionValueVariable

The stiction velocity.

`maxStictionDeformation` ExpressionValueVariable

The max stiction deformation.

`frictionEffect` Friction.EffectType

The friction effect.

`reactionForce` [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

The reaction force.

`bendingMoment` [bool](https://learn.microsoft.com/dotnet/api/system.boolean)

The bending moment.

`frictionArm` ExpressionValueVariable

The friction arm.

`bendingReactionArm` ExpressionValueVariable

The bending reaction arm.

`ballRadius` ExpressionValueVariable

The ball Radius.

`preTorque` ExpressionValueVariable

The preTorque.