Description
Brand - RINGSPANN
Part Number - FKh 94 ATR RINGSPANN
Category - Complete Freewheels FKh
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) - 60 mm
Maximum Bore Diameter (d) - 60 mm
Dimension (B) - 112 mm
Dimension (D) - 210 mm
Dimension (F) - 7 mm
Thread (G) ** - M10
Dimension (H) - 16 mm
Dimension (K) - 9 mm
Dimension (L) - 120 mm
Dimension (R) - 170 mm
Dimension (T) - 150 mm
Number of tapped holes (Z) ** - 10
Weight - 19 kg
Type - Type with Hydrodynamic Sprag Lift-off for Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Nominal Torque (MN) - 2500 Nm
Maximum Speed of Outer Ring Overruns - 1800 RPM
Maximum Speed of Inner Ring Drives - 1800 RPM
Description of Suffix:
ATR - Type with Hydrodynamic Sprag Lift-off for Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Other salient points to be noted:
** Z = Number of tapped holes G on pitch circle T
• The maximum transmissible torque is 2 times the specified nominal torque
• Tolerance of keyway width JS10
Features:
• Complete Freewheels FKh with hydrodynamic sprag lift-off are ideal for systems where an assembly is driven by two or more motors or turbines operating at the same or similar high speed.
• These are sealed sprag freewheels equipped with ball bearings
• Supplied pre-filled with oil and ready for installation; biodegradable oil available upon request
• Designed to handle nominal torques up to 14,000 Nm
• Available with bore sizes up to 95 mm
Application as: Overrunning Clutch (At high speeds, the rotational speed during freewheeling and driving operation is either identical or very similar)
Application Example:
• Two Complete Freewheels FKh 28 ATR are used as overrunning clutches in a fan drive system
• The fan is powered either by an electric motor or a turbine
• This system eliminates the need for actuated clutches, avoiding the need for manual or automatic switching between drives
• The hydrodynamic sprag lift-off feature ensures wear-free freewheeling operation, especially when driving and freewheeling speeds are equal or similar
Mounting:
• The customer attachment part must be centered on diameter R and then bolted onto the face of the freewheel
• The outer ring should rotate freely during freewheeling operation
• Shaft tolerance must be ISO h6 or j6
• Pilot diameter R of the attachment part must be ISO H7 or J7
♦ ♦ Images are for representation purposes only
Part Number - FKh 94 ATR RINGSPANN
Category - Complete Freewheels FKh
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) - 60 mm
Maximum Bore Diameter (d) - 60 mm
Dimension (B) - 112 mm
Dimension (D) - 210 mm
Dimension (F) - 7 mm
Thread (G) ** - M10
Dimension (H) - 16 mm
Dimension (K) - 9 mm
Dimension (L) - 120 mm
Dimension (R) - 170 mm
Dimension (T) - 150 mm
Number of tapped holes (Z) ** - 10
Weight - 19 kg
Type - Type with Hydrodynamic Sprag Lift-off for Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Nominal Torque (MN) - 2500 Nm
Maximum Speed of Outer Ring Overruns - 1800 RPM
Maximum Speed of Inner Ring Drives - 1800 RPM
Description of Suffix:
ATR - Type with Hydrodynamic Sprag Lift-off for Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Other salient points to be noted:
** Z = Number of tapped holes G on pitch circle T
• The maximum transmissible torque is 2 times the specified nominal torque
• Tolerance of keyway width JS10
Features:
• Complete Freewheels FKh with hydrodynamic sprag lift-off are ideal for systems where an assembly is driven by two or more motors or turbines operating at the same or similar high speed.
• These are sealed sprag freewheels equipped with ball bearings
• Supplied pre-filled with oil and ready for installation; biodegradable oil available upon request
• Designed to handle nominal torques up to 14,000 Nm
• Available with bore sizes up to 95 mm
Application as: Overrunning Clutch (At high speeds, the rotational speed during freewheeling and driving operation is either identical or very similar)
Application Example:
• Two Complete Freewheels FKh 28 ATR are used as overrunning clutches in a fan drive system
• The fan is powered either by an electric motor or a turbine
• This system eliminates the need for actuated clutches, avoiding the need for manual or automatic switching between drives
• The hydrodynamic sprag lift-off feature ensures wear-free freewheeling operation, especially when driving and freewheeling speeds are equal or similar
Mounting:
• The customer attachment part must be centered on diameter R and then bolted onto the face of the freewheel
• The outer ring should rotate freely during freewheeling operation
• Shaft tolerance must be ISO h6 or j6
• Pilot diameter R of the attachment part must be ISO H7 or J7
♦ ♦ Images are for representation purposes only
