Description
Brand - RINGSPANN
Part Number - FBF 82 SFZ RINGSPANN
Category - Complete Freewheels FBF
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) * - 50 mm
Maximum Bore Diameter (d) * - 50 mm
Dimension (A) - 180 mm
Dimension (D) - 135 mm
Dimension (F) - 2 mm
Thread (G) ** - M10
Dimension (L) - 75 mm
Dimension (N) - 16 mm
Dimension (T) - 155 mm
Number of Fastening Holes (Z) ** - 8
Weight - 7 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) - 1700 Nm
Sprag Lift-off at Outer Ring Speed - 1450 RPM
Maximum Speed of Inner Ring Overruns - 1600 RPM
Maximum Speed of Inner Ring Drives - 580 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
** Z = Number of fastening holes for screws G (DIN EN ISO 4762) on pitch circle T
• The maximum transmissible torque is 2 times the specified nominal torque
• Tolerance of keyway width JS10
Features:
• Complete Freewheels FBF with mounting flange are sealed sprag freewheels integrated with ball bearings
• Capable of handling nominal torques up to 160,000 Nm
• Available with bores up to 300 mm
Application as: Backstop, Overrunning Clutch, Indexing Freewheel
Application Example:
• Complete Freewheel FBF 72 DX is used as an overrunning clutch in a meat processing machine (chopper)
• During the mixing process, a gear motor drives both the bowl (via gear wheel drive) and the knife shaft (via belt drive and locked freewheel)
• During the cutting process, a second motor drives the knife shaft at high speed
• In this phase, the inner ring of the freewheel overruns the outer ring driven by the gear motor, automatically disengaging the gear motor
• To support high-speed freewheeling, a sprag lift-off type X is used, allowing the sprags to operate without contact, ensuring a wear-free freewheeling operation
Mounting:
• The customer’s attachment part is centered on the external diameter (D)
• It is then bolted to the face via the flange
• The shaft tolerance must conform to ISO h6 or j6
• The pilot diameter (D) of the attachment part must comply with ISO H7 or J7
♦ ♦ Images are for representation purposes only
Part Number - FBF 82 SFZ RINGSPANN
Category - Complete Freewheels FBF
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) * - 50 mm
Maximum Bore Diameter (d) * - 50 mm
Dimension (A) - 180 mm
Dimension (D) - 135 mm
Dimension (F) - 2 mm
Thread (G) ** - M10
Dimension (L) - 75 mm
Dimension (N) - 16 mm
Dimension (T) - 155 mm
Number of Fastening Holes (Z) ** - 8
Weight - 7 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) - 1700 Nm
Sprag Lift-off at Outer Ring Speed - 1450 RPM
Maximum Speed of Inner Ring Overruns - 1600 RPM
Maximum Speed of Inner Ring Drives - 580 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
** Z = Number of fastening holes for screws G (DIN EN ISO 4762) on pitch circle T
• The maximum transmissible torque is 2 times the specified nominal torque
• Tolerance of keyway width JS10
Features:
• Complete Freewheels FBF with mounting flange are sealed sprag freewheels integrated with ball bearings
• Capable of handling nominal torques up to 160,000 Nm
• Available with bores up to 300 mm
Application as: Backstop, Overrunning Clutch, Indexing Freewheel
Application Example:
• Complete Freewheel FBF 72 DX is used as an overrunning clutch in a meat processing machine (chopper)
• During the mixing process, a gear motor drives both the bowl (via gear wheel drive) and the knife shaft (via belt drive and locked freewheel)
• During the cutting process, a second motor drives the knife shaft at high speed
• In this phase, the inner ring of the freewheel overruns the outer ring driven by the gear motor, automatically disengaging the gear motor
• To support high-speed freewheeling, a sprag lift-off type X is used, allowing the sprags to operate without contact, ensuring a wear-free freewheeling operation
Mounting:
• The customer’s attachment part is centered on the external diameter (D)
• It is then bolted to the face via the flange
• The shaft tolerance must conform to ISO h6 or j6
• The pilot diameter (D) of the attachment part must comply with ISO H7 or J7
♦ ♦ Images are for representation purposes only
