background image

Do not use compressed air to blow
dust accumulations out from be-
tween the friction shoes. Although
the friction material does not contain
asbestos, the dust created as the fric-
tion material wears, along with the
dust from the operating environment,
may irritate the respiratory system.

4.1.2

Partial or complete disassembly is required to
inspect the following items:

4.1.2.1

Drum Diameter Wear

 - Check the O.D. of the

drum and compare to the values shown on 
Table 4. Minor heat-checking may be re-
moved by machining the drum O.D. If the
drum has been subjected to excessive heat,
the open end may flare out, giving the impres-
sion that the drum has not worn. It is therefore
important to check the diameter at several lo-
cations across the face.

Operation of the clutch or brake on 
a drum that has worn, or has been
machined, to less that minimum al-
lowable diameter will result in dam-
age to the element components.

*Note: The number preceding the letters “CB”
in the element size designates the original
drum diameter in inches.

Example: For 10CB300 - Original Drum
Diameter = 10.00 inches (254mm)
Minimum allowable drum diameter is:
10.00 - .09 = 9.91 (254 - 2 = 252mm).

4.1.2.2

Air Actuating Tube

 - Check that the rubber

tube has not been damaged by excessive
heat. If any portion of the tube is hard or 
charred, the entire element must be replaced.
Check for any blisters, which would indicate
ply separtion. A tube in this condition also re-
quires replacement of the entire element.

4.0

MAINTENANCE

Only qualified personnel should
maintain and repair these units.
Faulty workmanship may result in
personal injury or equipment dam-
age.

When replacing components, use
only genuine Airflex replacement
parts. Use of other materials may
severely effect performance.

4.1

Periodic Inspection

4.1.1

The following items may be inspected without
disassembly of the element:

4.1.1.1

Air Control Components

 - Check for proper

adjustment of the air control components.
Make sure the safety pressure switches, if
used, are set correctly. Repair any air leaks.

4.1.1.2

Friction Shoe Assembly Lining Wear

 - 

If the linings have worn to the minimum allow-
able thickness of 1/16" (1.5mm), they must be
replaced as a complete set, with the excep-
tion of element size 4CB200, where replace-
ment of the entire element is required when
worn to
the minimum lining thichness of 1/32"
(0.8mm).

Operation with friction material worn 
to less than minimum allowable thick-
ness will result in damage to the
drum.

4.1.1.3

Contamination of Shoes or Drum

 - Oil

or grease contamination will reduct the 
developed torque of the clutch or brake. 
Disassembly will be required to clean any oil
or grease build-up. Any dust accumulation
may be vacuumed from between the friction
shoe assemblies.

Do not attempt to use a solvent to 
remove oil or grease without first
removing the element. While  squirt-
inga solvent into an installed clutch

TABLE 4 - DRUM WEAR LIMITS

Element

Size

Maximum Allowable

Wear on Drum

Diameter *, in. (mm)

4CB200 thru 14CB400

.09 (2)

16CB500 thru 24CB500

.12 (3)

26CB525 thru 40CB525

.19 (5)

45CB525

.25 (6)

PDF Format

9

© Copyright Eaton Corp., 2001. All rights reserved.

Summary of Contents for Airflex CB

Page 1: ... genuine Airflex replacement parts could result in substandard product performance and may void your Eaton warranty For optimum performance contact Airflex In the U S A and Canada 1 800 AIRFLEX 247 3539 Outside the U S A and Canada 216 281 2211 Internet www airflex com Warning Forward this manual to the person responsible for Installation Operation and Maintenance of the product described herein W...

Page 2: ...n 9 4 2 Removal of Element Assembly and Drum Single and Dual 10 4 3 Disassembly of the Dual Element 10 4 4 Removal of Spider and Drum Hub 11 4 5 Friction Shoe Replacement 11 5 0 SPARE PARTS STORAGE 11 5 1 Element Assemblies 11 5 2 Drums 11 6 0 ORDERING INFORMATION 11 6 1 Product Nameplate 11 6 2 Element Description Identification 11 6 3 Technical Assistance 11 7 0 PARTS LISTS 13 7 1 Single Element...

Page 3: ...mbly 1B Optional Quick Release Valve Muffler 2 Compression Ring 3 Air Connection Tube 4 Air Connection Gasket 5 Friction Shoe Assembly 6 Air Tube Group Dual Mounted 7 Spacer Group Dual Mounted 8 Shoe Pin 9 Lockwire 5 8 9 Friction Shoe Replacement Kit DUAL MOUNTED PDF Format 1 Copyright Eaton Corp 2001 All rights reserved ...

Page 4: ...n a single ele ment can transmit CB elements size 12CB350 and larger can be supplied as dual units 1 2 How It Works 1 2 1 Referring to Figure 1 CB construction con sists of a neoprene and cord actuating tube which is bonded to the outer steel rim The rim is drilled for mounting to the driving compo nent or reaction bracket in the case of a CB brake application Friction shoe assemblies FSA s are at...

Page 5: ... element is at tached to a spider which is typically mounted on the driving shaft The drum is attached to a drum hub which is typically mounted on the driven shaft The gap between the two shafts allows the element and drum to be removed without disturbing either shaft Note The text in the Installation Alignment and Removal sections refer to this type of mounting arrangement 2 1 2 Close mounted arr...

Page 6: ...application is typically used when drill ing of the air passage in the driving shaft is nei ther possible nor practical 2 1 6 Figure 7 illustrates a CB clutch mounting for punch press applications The drum and drum hub are attached to the crankshaft or back shaft and the element is attached to a bearing mounted flywheel or bullgear CB clutches on punch presses are typically used in combina tion wi...

Page 7: ...nation by oil grease or excessive amounts of dust Oil or grease contamination will re sult in a reduction of developed clutch or brake torque Either of these conditions will result in clutch or brake slippage and overheating All rotating equipment must be guarded to comply with applicable safety standards 2 2 2 For clutch and brake applications shaft align ment must be within the tolerances indica...

Page 8: ...m hub or spider be heated in oil or an oven however since this is not always possible torches may be used When using torches use several with rose bud broad flame tips and keep them moving to avoid hot spots Check bore temperature frequently to avoid overheating 2 3 1 5 Slide the heated drum hub or spider onto the shaft until the hub face is flush with the end of the shaft Hold in position and all...

Page 9: ... in a running condition It is always good practice to make a hot alignment check and re shim if neces sary 2 5 Installation of Element and Drum Single and Dual 2 5 1 Note the orientation of the drum flange with respect to the air connection s on the ele ment and slide the drum into the element 2 5 2 Separate the shafts as far as the bearing clearances will allow and hoist the ele ment drum into po...

Page 10: ...g is desired 3 0 OPERATION Exceeding the operating limits described in this section may result in personal injury or equipment dam age 3 1 Torque RPM and Pressure Limits 3 1 1 The developed torque is dependent upon the applied air pressure and operating speed If the developed torque seems inadequate check for oil grease or dust contamination Maximum applied air pressure is 110 psig 7 5 bar Operati...

Page 11: ...tire element 4 0 MAINTENANCE Only qualified personnel should maintain and repair these units Faulty workmanship may result in personal injury or equipment dam age When replacing components use only genuine Airflex replacement parts Use of other materials may severely effect performance 4 1 Periodic Inspection 4 1 1 The following items may be inspected without disassembly of the element 4 1 1 1 Air...

Page 12: ...cessive heat must be replaced When using any solvent always follow the appropriate safety precautions 4 2 Removal of Element Assembly and Drum Single and Dual Prior to removal of the clutch or brake make sure the machinery is in and will remain in a safe condition 4 2 1 Match mark the element to the spider and the drum to the drum hub 4 2 2 Disconnect the element from the spider and allow it to re...

Page 13: ...lement assemblies must always be stored flat Storage in the standing position may cause the rims to go out of round 5 2 Drums 5 2 1 Drums must be stored open end down in a dry environment Similar to element assem blies storage of a drum in the standing position will adverely affect roundness 6 0 ORDERING INFORMATION 6 1 Product Nameplate 6 1 1 In any correspondence regarding Airflex equip ment ref...

Page 14: ...PDF Format 12 Copyright Eaton Corp 2001 All rights reserved ...

Page 15: ...or use in PCB 206 1 142840JD 341 X 1 1 Side Connection 1 142840JB 131 X 33 1 87 X 27 1 202723 1 72 X 39 1 6CB 200 Minus SIde Connection 1 142095JA 307398 6 Req d 200356 12 Req d 412266 04 6 Req d Minus Side Connection for use in PCB 1 142095JC Minus Side Connection 2 142095JH Side Connection 1 142095JB 131 X 11 1 131 X 20 1 9943 1 72 X 15 1 Side Connection 2 142095JG 2 1 1 1 Side Connection and Hi...

Page 16: ...d 412266 04 12 Req d Minus Side Cnnection for use in PCB 1 142098JC Minus Side Connection 2 142098JH Minus Side Connection Dual Drilled 2 142098KG Quick Release Valve Dual Flange 2 142098KF 14506DF 2 Side Connection 1 142098JB 131 X 11 1 131 x 20 1 9944 1 72 x 15 1 Side Connection 2 142098JG 2 2 2 2 Side Connection and High Coefficient Lining 1 145098JN 1 1 1 1 303338 12 Req d Side Connection for ...

Page 17: ...1 Req d 9716 22 Req d 412266 03 11 Req d Minus Side Connection Dual Drilled 1 142264KS Minus Side Connection 4 142264KZ Side Connection 1 142264KM 92 X 6 1 87 X 12 1 8518 1 72 X 11 1 Side Connection Dual Connection 1 142264LH 1 1 1 1 Side Connection Turned Down Flange 1 142264KX 1 1 1 1 Side Connection 2 142264LB 2 2 2 2 Side Connection 4 142264KP 4 4 4 4 Quick Release Valve 1 142264KN 145406DF 1 ...

Page 18: ... 414771 14 Req d 9716 28 Req d 412266 03 14 Req d Minus Side Connection Dual Drilled 1 142267KS Minus Side Connection 4 142267KZ Side Connection 1 142267KM 92 X 6 1 87 x 12 1 8518 1 72 x 11 1 Side Connection Dual Drilled 1 142267LH 1 1 1 1 Side Connection 2 142267LB 2 2 2 2 Side Connection 4 142267KP 4 4 4 4 Minus Side Connection for FSPA Mounting 4 142267LD 4 4 4 4 Quick Release Valve 1 142267KN ...

Page 19: ...ick Release Valve 4 142269KR 4 4 4 4 30CB 525 Minus Side Connection 1 142270KY 414774 18 Req d 9513 36 Req d 412266 02 18 Req d Minus Side Connection Dural Drilled 1 142270KS Side Connection 1 142270KM 92 X 7 1 87 X 14 1 8507 1 72 x 12 1 Side Connection Dual Drilled 1 142270LH 1 1 1 1 Side Connection 4 142270KP 4 4 4 4 Quick Release Valve 1 142270KN 145407DF 1 1 1 1 Quick Release Valve 4 142270KR ...

Page 20: ...2KN 145141DE 1 1 1 1 Quick Release Valve 4 142272KR 4 4 4 4 40CB 525 Minus Side Connection 1 142273KY 414776 24 Req d 9513 48 Req d 412266 02 24 Req d Minus Side Connection Dural Drilled 1 142273KS Side Connection 1 142273KM 92 X 8 1 87 X 16 1 8501 1 72 x 13 1 Side Connection Dual Drilled 1 142273LH 1 1 1 1 Side Connection 2 142273LB 2 2 2 2 Side Connection 4 142273KP 4 4 4 4 Quick Release Valve 1...

Page 21: ... Connections 142435DA 142266KS 142266KY 106346 Two Quick Release Valves 142435DD 106346B 24CB500 Two Side Connections 142436DA 142267KS 142267KY 106346 106353 Two Quick Release Valves 142436DD 106346B 26CB525 Two SIde Connections 142437DA 142268KS 142268KY 106347 106354 Two Quick Release Valves 142437DD 106347B 28CB525 Two SIde Connections 142438DA 142269KS 142269KY 106347 106355 Two Quick Release...

Page 22: ...46234G 11 22 11 20CB500 146234H 12 24 12 22CB500 146234J 13 26 13 24CB500 146234K 14 28 14 26CB525 146234L 16 32 16 28CB525 146234M 17 34 17 30CB525 146234N 18 36 18 32CB525 146234P 19 38 19 36CB525 146234Q 22 44 22 40CB525 146234R 24 48 24 45CB525 146234S 27 54 27 Extra lockwires supplied with each kit 8 0 REPAIR KITS 8 1 Friction Shoe Shoe Pin and Lockwire Kits PDF Format 20 Copyright Eaton Corp...

Page 23: ...on correct any defect at its option either by re pairing any defective part or parts or by mak ing available at Eaton s plant a repaired or replacement part This warranty does not ex tend to normal wear parts or components of the Product such as friction material and friction surfaces LIMITATION OF WARRANTY THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRAN TIES WHETHER WRITTEN OR...

Reviews: