FXRW 85 - 50 MX RINGSPANN

Brand - RINGSPANN
Part Number - FXRW 85 - 50 MX RINGSPANN
Category - Integrated Freewheels FXRW

Principal Dimensions & Specifications (Metric):
Maximum Bore Diameter (d) - 65 mm
Dimension (A) - 330 mm
Dimension (B) - 176 mm
Dimension (C) - 6 mm
Dimension (D) - 285 mm
Thread (G) ** - M 12
Dimension (H) - 54 mm
Dimension (K) - 67.5 mm
Dimension (L) - 60 mm
Dimension (O) - 151 mm
Dimension (R) - 280 mm
Dimension (S) - 110 mm
Dimension (T) - 308 mm
Minimum Dimension (U) *** - 165 mm
Maximum Dimension (U) *** - 215 mm
Dimension (V) - 38 mm
Number of Fastening Holes (Z) ** - 6
Weight - 60 kg
Slipping Torque (M_R) - 3300 Nm
Sprag Lift-off at Inner Ring Speed - 430 RPM
Maximum Speed of Inner Ring Freewheels - 6000 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)
• 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

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