Description
Brand - RINGSPANN
Part Number - FBL 127 SFZ RINGSPANN
Category - Complete Freewheels FBL
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d1) - 70 mm
Maximum Bore Diameter (d1) * - 75 mm
Standard Bore Diameter (d3) - 70 mm
Minimum Bore Diameter (d3) - 60 mm
Maximum Bore Diameter (d3) - 110 mm
Dimension (A) - 315 mm
Dimension (B) - 138 mm
Dimension (C) - 32 mm
Dimension (D) - 200 mm
Dimension (E) - 175 mm
Dimension (F) - 3 mm
Dimension (H) - 101 mm
Dimension (L) - 112 mm
Dimension (M) - 124 mm
Dimension (O) - 313 mm
Weight - 48.8 kg
Type - Type with Sprag Lift-off Z For Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring (SFZ)
Nominal Torque (MN) - 4000 Nm
Sprag Lift-off at Outer Ring Speed - 1200 RPM
Maximum Speed of Outer Ring Overruns - 1200 RPM
Maximum Speed of Inner Ring Drives - 480 RPM
Description of Suffix:
SFZ - Type with Sprag Lift-off Z For Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Other salient points to be noted:
* Keyway according to DIN 6885
• The maximum transmissible torque is 2 times the specified nominal torque
• For bore d1: Keyway according to DIN 6885
• For bore d1: Keyway width tolerance JS10
• For bore d3: Keyway according to DIN 6885
• For bore d3: Keyway width tolerance P9
Features:
• Complete Freewheels FBL with RINGSPANN Shaft Coupling are sealed sprag freewheels with ball bearings, designed for coupling two shafts
• Capable of handling nominal torques up to 8,000 Nm
• Available with bores up to 140 mm; many standard bore sizes available
• The torsionally stiff RINGSPANN Shaft Coupling can accommodate large radial and angular misalignments without transmitting reactive forces to adjacent bearings
Application as: Overrunning Clutch
Application Example:
• Complete Freewheel FBL 82 SFZ is used as an overrunning clutch in the drive unit of a conveyor belt system with an additional creep drive
• In normal operation (freewheeling mode), the main motor drives the belt, while the outer ring of the freewheel overruns, automatically disengaging the creep drive
• Since high speed freewheeling is involved, a sprag lift-off type Z is used, ensuring contact-free, wear-free operation of the sprags
Mounting:
• The flexible disk of the shaft coupling must remain axially free after installation to prevent distortion of the ball bearings in the freewheel due to thermal expansion
• The shaft coupling can be mounted on either the right or left side of the freewheel, based on the required freewheeling direction
• The shaft tolerance must conform to ISO h6 or j6
♦ ♦ Images are for representation purposes only
Part Number - FBL 127 SFZ RINGSPANN
Category - Complete Freewheels FBL
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d1) - 70 mm
Maximum Bore Diameter (d1) * - 75 mm
Standard Bore Diameter (d3) - 70 mm
Minimum Bore Diameter (d3) - 60 mm
Maximum Bore Diameter (d3) - 110 mm
Dimension (A) - 315 mm
Dimension (B) - 138 mm
Dimension (C) - 32 mm
Dimension (D) - 200 mm
Dimension (E) - 175 mm
Dimension (F) - 3 mm
Dimension (H) - 101 mm
Dimension (L) - 112 mm
Dimension (M) - 124 mm
Dimension (O) - 313 mm
Weight - 48.8 kg
Type - Type with Sprag Lift-off Z For Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring (SFZ)
Nominal Torque (MN) - 4000 Nm
Sprag Lift-off at Outer Ring Speed - 1200 RPM
Maximum Speed of Outer Ring Overruns - 1200 RPM
Maximum Speed of Inner Ring Drives - 480 RPM
Description of Suffix:
SFZ - Type with Sprag Lift-off Z For Extended Service Life Using Sprag Lift-off at High Speed Rotating Outer Ring
Other salient points to be noted:
* Keyway according to DIN 6885
• The maximum transmissible torque is 2 times the specified nominal torque
• For bore d1: Keyway according to DIN 6885
• For bore d1: Keyway width tolerance JS10
• For bore d3: Keyway according to DIN 6885
• For bore d3: Keyway width tolerance P9
Features:
• Complete Freewheels FBL with RINGSPANN Shaft Coupling are sealed sprag freewheels with ball bearings, designed for coupling two shafts
• Capable of handling nominal torques up to 8,000 Nm
• Available with bores up to 140 mm; many standard bore sizes available
• The torsionally stiff RINGSPANN Shaft Coupling can accommodate large radial and angular misalignments without transmitting reactive forces to adjacent bearings
Application as: Overrunning Clutch
Application Example:
• Complete Freewheel FBL 82 SFZ is used as an overrunning clutch in the drive unit of a conveyor belt system with an additional creep drive
• In normal operation (freewheeling mode), the main motor drives the belt, while the outer ring of the freewheel overruns, automatically disengaging the creep drive
• Since high speed freewheeling is involved, a sprag lift-off type Z is used, ensuring contact-free, wear-free operation of the sprags
Mounting:
• The flexible disk of the shaft coupling must remain axially free after installation to prevent distortion of the ball bearings in the freewheel due to thermal expansion
• The shaft coupling can be mounted on either the right or left side of the freewheel, based on the required freewheeling direction
• The shaft tolerance must conform to ISO h6 or j6
♦ ♦ Images are for representation purposes only
