Caliper Disc Brakes Eaton Corporation Airflex Division Technical Data and Selection Procedure Air over Hydraulic Intensifier Copyright Eaton Corporation, 1997.

Airflex' Caliper Description Caliper disc brakes are ideally suited for most large torque, high energy stopping applications. By proper choice of actuating pressure, number of calipers per disc, number of discs and disc diameter a braking system can be custom designed for most applications. The calipers are of the opposed piston design. This design permits fixed mounting of the caliper and the brake disc. Symmetrical split construction of the piston housings permits a center reaction mounting and the ability to accommodate brake discs of different thicknesses. Friction shoes attach to the caliper...

Airflex Technical Data and Selection Procedure Technical Section Y of the Catalog contains useful information pertaining to the selection, mounting, alignment and control of clutches and brakes in general. Formulas, symbols and units are also identified. It is recom- mended that Section Y be reviewed before attempting to size a specific Frictional Force Adjustment Dynamic frictional force ratings Fr are given for calipers furnished with either standard or low coefficient friction linings. The ratings are based upon an effective pressure pr of 1000 psi (69 bar) for standard linings and 100 psi...

Airflex Selection Procedure Thermal Capacity Non-cyclic thermal capacity is determined by the caliper's friction area and/or the swept area of the braking disc. For good life, it is recommended that the peak thermal power not exceed 75 HP (56 calipers. Disc swept area loading should not exceed 0.3 HP/in2 (0.035 kW/cm2). The swept area can be approximated from: where As = disc swept area in2 (cm2) D = disc outside diameter in (m) The following graph illustrates the continuous thermal power dissi- pation for the 225DP100 caliper with low coefficient friction linings and a 15 inch (0.38 m) diameter...

Airflex 225DP100 Caliper Component Parts Friction Shoe Retainer Spring Guide Snap Ring Snap Ring Retaining Ring Quad Ring Dyna Seal Pipe Plug Bridge Pipe Cylinder Block Friction Shoe Assy Copyright Eaton Corporation, 1997, All rights reserved.

225DP100 Caliper Dimensional Data 6.12 156 4.250 108 1/8 - 27 Inlet Port Ê 1.88 48 Nut furnished for shipping purposes only 1-8NC3 Ë Bleeder Screws 2.63 67 3.88 98 2.438 61.9 Split Line 6.44 164 3.38 86 4.88 124 Form CA 1001 1.125 28.6 2.38 60 Pad 5.75 146 Caliper Description Part Number Caliper w/low coefficient linings and seals for mineral base fluids 142862C Caliper w/standard linings and seals for vegetable base fluids 142862H Caliper w/standard linings and seals for mineral base fluids 142862J Notes: Ê American National Pipe Thread Ë American National Standard for Unified Screw Threads....

Airflex 225DP100 Caliper Brake Application Dimensional Data Various disc thicknesses can be used by inserting spacers at split Mounting surface either side *QD is a registered trademark of Emerson Electric Co. O Basic part number only. Type of friction linings and actuating fluid must be specified. 0 Basic part number only. Suffix must be added for specific bore. O Minimum gap during operations: Copyright Eaton Corporation, 1997, All rights reserved.

HC 3 Caliper Form CA 1002 Dimensional Data 7/16 - 20 NF Inlet Port for O-Seal Fitting Ê 2.00 51 Ë 2.63 67 5.25 Ë 133 10.0 Ë 254 Ë 12.44 316 2.00 51 Mounting Plate between caliper halves must be equal to disc thickness 1.53 (39mm) Dia. 4 holes req’d in mounting plate Basic Part Number 142967 Ì 3.25 Pad 83 2.312 58,7 1 1/2 - 6 Ê Tapped Hole 6.38 162 4.313 109,6 2.625 66,7 0.375 9,5 2.312 58,7 15.75 400 8.625 219,2 2.25 57 6.0 Pad 152 Notes: Ê Ë These dimensions based on a 1.25 in (32 mm) thick disc. Ì H-7 American National Standard for Unified Screw Threads. Suffix must be added to indicated type...

HD 3 Caliper Form CA 1002A Dimensional Data Ê 2.312 58,7 9.38 Ë 238 4.63 Ë 124 11.81Ë 124 7/16 - 20 NF Inlet Port for 0-Seal Fitting Mounting Surface 4.313 109,6 1.53 (39mm) Thru 2 Holes 2.312 58,7 3.25 83 Pad 6.38 162 2.62 5 .375 9,5 2.312 58,7 15.75 400 8.625 219,2 Basic Part Number 142967Ì 2.25 57 6.0 Pad 152 9.750 247,7 Notes: Ê American National Standard for Unified Screw Threads. Ë These dimensions based on a 0.63 in (6 mm) thick disc. Ì Suffix must be added to indicated type of friction lining and actuating fluid. Copyright Eaton Corporation, 1997, All rights reserved. H-8

Component Parts Item Description Item Description 1 Set Screw 16 Hi-Collar Lockwasher 5 Quad Ring 20 Lockwasher 11 Compression Spring 26 Piston 13 Spherical Washer 28 Lockwasher 14 Cylinder Block 29 Friction Shoe Assy Copyright Eaton Corporation, 1997, All rights reserved.

Air over Hydraulic Intensifier Description This intensifier is designed for industrial caliper brakes which require low initial hydraulic displacement prior to full pressure application and requires near zero residual system pressure. It is intended for single stop and low cyclic duty. It multiplies a low air pressure input into a higher hydraulic pressure output. Hydraulic to air pressure ratio - 15:1 Maximum displacement - 4.7 in3 (0,08 dm3) Actuating fluid - vegetable base only Contact the factory for the appropriate intensifier to meet your application requirements. 0.41 Dia. Mounting Holes...

Typical Applications Direct drive application where the 225DP100 caliper is used to brake the fly- wheel of a 60 ton Header during the set-up Copyright Eaton Corporation, 1997, All rights reserved.