Description
Brand - RINGSPANN
Part Number - FRHD 700 RINGSPANN
Category - Low Speed Backstops FRHD
Principal Dimensions & Specifications:
Maximum Bore (d) - 3.44 inch
Dimension (A) - 8 inch
Dimension (C) - 6 inch
Dimension (D) - 5.25 inch
Dimension (E) - 0.5 inch
Dimension (H) - 36 inch
Dimension (L) - 6 inch
Dimension (O) - 6.75
Dimension (P) - 16.38 inch
Dimension (Q) - 32 inch
Weight - 135 lbs
Weight - 61.23 kg
Nominal Torque (MN) - 3750 lb-ft
Maximum Speed Inner Ring Freewheels - 620 RPM
Other salient points to be noted:
• The maximum transmissible torque is 2 times the specified nominal torque
• Conversion factors: 1 lb-ft = 1.35 Nm, 1 inch = 25.4 mm, 1 lbs = 0.453 kg
Features:
• Low Speed Backstops FRHD with lever arm are sealed sprag freewheels equipped with ball bearings
• Capable of handling nominal torques up to 900,000 lb-ft
• Available with bores up to 21 inches
Application as: Backstop
• Equipped with Taconite seals to protect the freewheels from dust and dirt contamination
Application Example:
• Backstop FRHD 900 is installed on the head drum shaft of an inclined conveyor belt system
• The backdriving torque is supported by the lever arm resting on the base plate
Mounting:
• The lever arm must not be rigidly clamped; it should allow 0.5 inch of play in both axial and radial directions
• The shaft tolerance must comply with ISO h6 or j6
♦ ♦ Images are for representation purposes only
Part Number - FRHD 700 RINGSPANN
Category - Low Speed Backstops FRHD
Principal Dimensions & Specifications:
Maximum Bore (d) - 3.44 inch
Dimension (A) - 8 inch
Dimension (C) - 6 inch
Dimension (D) - 5.25 inch
Dimension (E) - 0.5 inch
Dimension (H) - 36 inch
Dimension (L) - 6 inch
Dimension (O) - 6.75
Dimension (P) - 16.38 inch
Dimension (Q) - 32 inch
Weight - 135 lbs
Weight - 61.23 kg
Nominal Torque (MN) - 3750 lb-ft
Maximum Speed Inner Ring Freewheels - 620 RPM
Other salient points to be noted:
• The maximum transmissible torque is 2 times the specified nominal torque
• Conversion factors: 1 lb-ft = 1.35 Nm, 1 inch = 25.4 mm, 1 lbs = 0.453 kg
Features:
• Low Speed Backstops FRHD with lever arm are sealed sprag freewheels equipped with ball bearings
• Capable of handling nominal torques up to 900,000 lb-ft
• Available with bores up to 21 inches
Application as: Backstop
• Equipped with Taconite seals to protect the freewheels from dust and dirt contamination
Application Example:
• Backstop FRHD 900 is installed on the head drum shaft of an inclined conveyor belt system
• The backdriving torque is supported by the lever arm resting on the base plate
Mounting:
• The lever arm must not be rigidly clamped; it should allow 0.5 inch of play in both axial and radial directions
• The shaft tolerance must comply with ISO h6 or j6
♦ ♦ Images are for representation purposes only




