— A-21 —
Table A-10: Parts list
Number Name RNB 2K RNB 4K RNB 8K RNB 12K
Field 1 1 1 1
Coil spring 9 6 8 8
Armature assembly 1 1 1 1
Plate spring 1 1 1 1
Bolt
Hex. socket cap bolt
3
Safety spring washer 3 3 3 3
Disk 1 1 1 1
Collar 3 3 6 6
Side plate assembly 1 1 1 1
Hex. socket coutersunk head screw 3 3 6 6
3. Handling precautions
1) This brake is dry type. Its torque will decrease when the friction surface is soiled with oil. Use care
never to allow oil to enter it.
2) The electromagnetic brake uses many mild materials. Use care not to hit or drop the brake, or apply
excessive force to it, otherwise indented or deformed brake could malfunction or have insufficient
torque.
4. Manual Release of Brake
l Insert manual brake releasing bolts to 3 tap holes of the side plate, then screw them alternatively to
press the armature assembly to the field side to release the brake.
l Use a care to screw the bolts alternatively to push the armature assembly evenly.
Table A-11
Type RNB2K RNB4K TNB8K RNB12K
Manual release bolt M5 M5 M6 M6
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