Description
Brand - RINGSPANN
Part Number - FXRW 120 - 50 MX RINGSPANN
Category - Integrated Freewheels FXRW
Principal Dimensions & Specifications (Metric):
Maximum Bore Diameter (d) - 95 mm
Dimension (A) - 400 mm
Dimension (B) - 192 mm
Dimension (C) - 6 mm
Dimension (D) - 345 mm
Thread (G) ** - M 16
Dimension (H) - 69 mm
Dimension (K) - 77.5 mm
Dimension (L) - 70 mm
Dimension (O) - 167 mm
Dimension (R) - 340 mm
Dimension (S) - 145 mm
Dimension (T) - 373 mm
Minimum Dimension (U) *** - 200 mm
Maximum Dimension (U) *** - 260 mm
Dimension (V) - 34 mm
Number of Fastening Holes (Z) ** - 6
Weight - 101 kg
Slipping Torque (MR) - 7300 Nm
Sprag Lift-off at Inner Ring Speed - 320 RPM
Maximum Speed of Inner Ring Freewheels - 4000 RPM
Other salient points to be noted:
* Keyway according to DIN 6885
** Z = Number of fastening holes for screws G on pitch circle T
*** Area for O-ring sealing
Features:
• Integrated Freewheels FXR are sprag-type freewheels without built-in bearing support, featuring sprag lift-off design (X)
• They are based on the FXM series (refer to pages 58–63) but include an additional integrated torque limiter
• The sprag lift-off mechanism ensures no contact during high-speed inner ring rotation, resulting in wear-free operation
• Upon stoppage, the full backdriving torque often gets concentrated on a single backstop, which can overload it
Application as: Backstop (For continuous conveyor systems that use multiple drives, each fitted with its own backstop)
Torques:
• Integrated Freewheels FXRW come with a factory-set slipping torque value (MR) in the torque limiter
• The system’s static backdriving torque (ML), including during overload, must never exceed the combined MR values of all FXRW freewheels used
• The MR values listed in technical tables represent maximum permissible limits
Mounting:
• Integrated Freewheels FXRW do not include internal bearing support
• Total Indicated Runout (T.I.R.) between the pilot diameter (R) and shaft diameter (d) must not exceed 0.25 mm
• Dimension C refers to the freewheel's centering depth; the customer’s attachment part must have a minimum centering depth of C + 0.2 mm
• Pilot diameter (R) of the attachment part must be to ISO H7 tolerance
• Shaft diameter must be to ISO h6 or j6 tolerance
♦ ♦ Images are for representation purposes only
Part Number - FXRW 120 - 50 MX RINGSPANN
Category - Integrated Freewheels FXRW
Principal Dimensions & Specifications (Metric):
Maximum Bore Diameter (d) - 95 mm
Dimension (A) - 400 mm
Dimension (B) - 192 mm
Dimension (C) - 6 mm
Dimension (D) - 345 mm
Thread (G) ** - M 16
Dimension (H) - 69 mm
Dimension (K) - 77.5 mm
Dimension (L) - 70 mm
Dimension (O) - 167 mm
Dimension (R) - 340 mm
Dimension (S) - 145 mm
Dimension (T) - 373 mm
Minimum Dimension (U) *** - 200 mm
Maximum Dimension (U) *** - 260 mm
Dimension (V) - 34 mm
Number of Fastening Holes (Z) ** - 6
Weight - 101 kg
Slipping Torque (MR) - 7300 Nm
Sprag Lift-off at Inner Ring Speed - 320 RPM
Maximum Speed of Inner Ring Freewheels - 4000 RPM
Other salient points to be noted:
* Keyway according to DIN 6885
** Z = Number of fastening holes for screws G on pitch circle T
*** Area for O-ring sealing
Features:
• Integrated Freewheels FXR are sprag-type freewheels without built-in bearing support, featuring sprag lift-off design (X)
• They are based on the FXM series (refer to pages 58–63) but include an additional integrated torque limiter
• The sprag lift-off mechanism ensures no contact during high-speed inner ring rotation, resulting in wear-free operation
• Upon stoppage, the full backdriving torque often gets concentrated on a single backstop, which can overload it
Application as: Backstop (For continuous conveyor systems that use multiple drives, each fitted with its own backstop)
Torques:
• Integrated Freewheels FXRW come with a factory-set slipping torque value (MR) in the torque limiter
• The system’s static backdriving torque (ML), including during overload, must never exceed the combined MR values of all FXRW freewheels used
• The MR values listed in technical tables represent maximum permissible limits
Mounting:
• Integrated Freewheels FXRW do not include internal bearing support
• Total Indicated Runout (T.I.R.) between the pilot diameter (R) and shaft diameter (d) must not exceed 0.25 mm
• Dimension C refers to the freewheel's centering depth; the customer’s attachment part must have a minimum centering depth of C + 0.2 mm
• Pilot diameter (R) of the attachment part must be to ISO H7 tolerance
• Shaft diameter must be to ISO h6 or j6 tolerance
♦ ♦ Images are for representation purposes only
