BC 20 R RINGSPANN

Brand - RINGSPANN
Part Number - BC 20 R RINGSPANN
Category - Complete Freewheels BC

Principal Dimensions & Specifications (Metric):
Standard Bore Diameter (d) - 30 mm
Maximum Bore Diameter (d) - 30 mm
Dimension (A) - 110 mm
Dimension (C) - 90 mm
Dimension (D) - 106 mm
Dimension (E) - 8 mm
Dimension (H) - 80 mm
Dimension (K) - 2.5 mm
Dimension (L) - 77 mm
Dimension (N) - 11 mm
Dimension (O) - 104 mm
Dimension (P) - 19.5 mm
Dimension (Q) - 65 mm
Dimension (R) - 70 mm
Thread for Screw (S) - M10
Weight - 5 kg
Type - Standard Type for Universal Use (R)
Nominal Torque (M_N) - 420 Nm
Maximum Speed of Inner Ring Freewheels - 1450 RPM

Description of Suffix:
R - Standard Type for Universal Use

Other salient points to be noted:
• The maximum transmissible torque is 2 times the specified nominal torque
• Tolerance of keyway width JS10
• Keyway according to DIN 6885

Features:
• Capable of handling nominal torques up to 57,500 Nm
• Available with bores up to 150 mm

Application as: Backstop

Application Example:
• Complete Freewheel BC 90 R is used as a backstop at the end of a transport roller
• The backdriving torque is supported by a lever arm with a holding pin attached to the base
• If the holding pin is removed, the shaft can rotate freely in both directions, allowing for maintenance or adjustments

Mounting:
• The holding pin should allow 0.5 to 2 mm play in both axial and radial directions
• The shaft tolerance must conform to ISO h6 or j6
• BC freewheels are supplied pre-filled with oil and ready for installation

♦ ♦ Images are for representation purposes only