TGW Natrix, Installation, Operation & Maintenance Manual

Page: 64 / 111

Natrix IOM
Shrink Disc Removal Procedure
Disassemble shrink disc [3]
Loosen clamping screws [1] evenly one by one.
Attention: Loosen all clamping screws by a 90° turn first to prevent the outer rings
from tilting!
Dismantle shaft [2] or pull off the hub from the shaft. Always remove the rust that may
have formed on the shaft in front of hub [A] before removing the disc.
Pull off shrink disc [3] from the hub.
Please note: Disassembled shrink discs do not need to be dismantled and lubricated
before they are clamped again.
Only if the shrink disc is dirty, it will have to be cleaned and lubricated Lubricate the
tapered surfaces with Molykote 321 (dry film lubricant) or similar Lubricate the clamping
screws with Molykote BR2 (multiple-purpose grease) or similar.
Motor Shrink Disc Requirements
Manufacturer Model #
Shaft Ø
mm
Shaft Ø Inch Ma Torque
Lenze GKS07 50 ≈ 2" 30Nm 22.1 Ft / Lbs
Lenze GKS09 65 ≈ 2-1/2" 70Nm 51.6 Ft / Lbs
Lenze GKS11 80 ≈ 3-1/8" 59Nm 43.5 Ft / Lbs
SEW KH67 40 ≈ 1-9/16" 12Nm 8.9 Ft / Lbs
SEW KH87 65 ≈ 2-9/16" 30Nm 22.1 Ft / Lbs
SEW KH97 75 ≈ 2-15/16" 30Nm 22.1 Ft / Lbs
Siemens K63 50 ≈ 2 70Nm 51.6 Ft / Lbs
Siemens K83 70 ≈ 2-3/4" 70Nm 51.6 Ft / Lbs
Shrink Disc Mounting Screw Requirements
Revision Date: 12/10/2014 Page 64 of 111