Description
Brand - RINGSPANN
Part Number - FXM 46 - 25 NX RINGSPANN
Category - Integrated Freewheels FXM...NX
Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) - 30 mm
Maximum Bore Diameter (d) - 30 mm
Dimension (A) - 25 mm
Dimension (B) - 35 mm
Dimension (D) - 95 mm
Minimum Dimension (E) - 56 mm
Dimension (F) - 70 mm
Thread (G) ** - M 6
Dimension (J) - 46 mm
Dimension (L) - 35 mm
Dimension (P) - 1 mm
Dimension (T) - 82 mm
Dimension (U) - 15 mm
Dimension (V) - 6 mm
Dimension (W) - 21 mm
Number of Fastening Holes (Z) ** - 6
Weight - 1.3 kg
Theoretical Nominal Torque (A) - 460 Nm
Nominal Torque at Existing Run Out [0.1] T.I.R. (A) - 450 Nm
Nominal Torque at Existing Run Out [0.2] T.I.R. (A) - 440 Nm
Nominal Torque at Existing Run Out [0.3] T.I.R. (A) - 430 Nm
Sprag Lift-off at Inner Ring Speed - 820 RPM
Maximum Speed of Inner Ring Freewheels/ Overruns - 5000 RPM
Maximum Speed of Outer Ring Drives - 328 RPM
Other salient points to be noted:
• The maximum transmissible torque is 2 times the specified nominal torque
• The theoretical nominal torque applies only for ideal concentricity between the inner and outer ring
• The concentricity is affected by the bearing play and centering errors of the neighbouring parts
• Then the nominal torques specified in the table apply, whilst taking into consideration the existing run out (T.I.R.)
• Higher speeds upon request
* Keyway according to DIN 6885
** Z = Number of fastening holes for screws G on pitch circle T
Features:
• Integrated Freewheels FXM are sprag freewheels supplied without bearing support, equipped with sprag lift-off X
• The sprag lift-off X feature ensures wear-free freewheeling when the inner ring operates at high rotational speeds
• Capable of handling nominal torques up to 1,230,000 Nm
• Available with bores up to 500 mm
Application as:
• Backstop (Suitable for use as a backstop in installations where the freewheeling operation occurs at high speeds)
• Overrunning Clutch (Suitable for use as an overrunning clutch in installations where the driving operation takes place at low speeds)
Mounting:
• Integrated Freewheels FXM are supplied without bearing support
• The customer must ensure concentric alignment of both the inner ring and outer ring
• The permissible runout (T.I.R.) must be carefully observed
• The Integrated Freewheel FXM is centered via the outer track F on the customer’s attachment part
• The pilot diameter of the attachment part must have a tolerance of ISO h6 or h7
• The shaft tolerance must comply with ISO h6 or j6
Lubrication:
• When operating at speeds above the sprag lift-off speed, no special lubrication is required; the freewheel operates in a maintenance-free manner
• When operating at speeds below the sprag lift-off speed, an oil lubrication of the specified quality must be provided to ensure proper performance
♦ ♦ Images are for representation purposes only
