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KKB 314

Kopper Kool Brakes
  • Copper disc design for high heat dissipation
  • Accurate control

The Wichita Kopper Kool airtube disc Clutches and Brakes are liquid cooled and consist of a series of alternating discs connecting an inner drive member to an outer drive member.

Engagement is achieved by pneumatic expansion of the airtube. This air-operated clutch contains copper discs for excellent heat dissipation and provides an accurately controlled continuous slip action for constant web tensioning. Tension levels are in direct

Design Features

  • New friction material lasts longer with less wear on mating copper.
  • Copper alloy wear plates increase heat transfer.
  • Hub spline provides perfect alignment of rotating discs.
  • External air & water connections.
  • Release springs ensure complete disengagement.
  • High strength reinforced neoprene air-tube offers long service life.
  • Optional long stroke air tube available on 18″ or 24″ size units to increase life and standard maintenance intervals.
  • High thermal capacity.

Specifications

Assembly Number

7-314-310-103-0

Dynamic Torque Rating (80 psi/5.5 bar)

50400 lb.in|5593 Nm

Dynamic Torque Rating (100 psi/7 bar)

63000 lb.in|7118 Nm

Heat Capacity for Series Water Hosing

150 hp
112 kw

Heat Capacity for Parallel Water Hosing

225 hp
168 kw

Maximum Bore Size

4.38 in
111 mm

Recommended Clearence

1/8-3/16 in
3-5 mm

Maximum Speed

1600 rpm

Parallel Water Flow 0 % Ethylene Glycol

22.5 lgm
84 lpm

Parallel Water Flow 30 % Ethylene Glycol

29 lgm
111 lpm

Parallel Water Flow 50 % Ethylene Glycol

36 lgm
135 lpm

Total Brake Weight

470 lb
213.2 kg

Disc Gear Weight

120 lb
54 kg

Disc Gear Inertia

16 lb·ft
0.67 kg·m

Pressure Drop Parallel Flow with 0 % Ethylene Glycol

1.2 psi
0.08 bar

Pressure Drop Parallel Flow with 30 % Ethylene Glycol

48 psi
3.31 bar

Pressure Drop Parallel Flow with 50 % Ethylene Glycol

psi
bar

Maximum Lining Wear

0.5 in
1.3 cm

Maximum Lining Wear

60in3
1.0 dm3

60. in3
1 dm3

Pilot Diameter A

18.747/18.750 in
476.17/476.25 mm

Bolt Hole Circle Diameter B

17.500 in
444.50 mm

Pilot Diameter C

14.375/14.378 in
412.75/412.83 mm

Dimension D

17.50 in
444.5 mm

Dimension F

9.13 in
231.9 mm

Dimension G

1.69 in
42.9 mm

Dimension H

14.13 in
358.9 mm

Dimension J

0.25 in
6.4 mm

Number of Bolt Holes

6

Bolt Hole Size L

21/32 in
16.7 mm

Dimension M

7.38 in
187.5 mm

Dimension N

6.50 in
165.1 mm

Dimension Q

1.50 in
38.1 mm

Number of Inlet Ports – Thread Size

2- 1/2 NPT

Dimension T

7.00 in
177.8 mm

Minimum U

1.38 in
35.1 mm

Maximum U

4.38 in
111.3 mm

Number of Coolant Inlets – Thread Size

4 – 1/2 NPT

Manufacturer

Wichita Clutch

Actuation

Air Applied

Notes

Maximum water jacket inlet pressure is 60 PSI. Brakes with as great as 50 % higher torque capacity is available upon request.

For mounting, use socket head capscrews conforming to the ASTM-574-97a.

1 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
2 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
3 Number of inlets and outlets are equivalent.
(Consult factory for drawing before final layout.)