Resident Engineering Staff OEM Verification – 3 Seat SolidWorks CAD System Product Development Enhanced Products Failure Analysis

Traction Motor Components Bearing Cap Bearing Hsg Insert New Frames Bearing Plate Retainer Cover New Frames

Traction Motor Components MECHANICAL PARTS COVERS, HSG, BRG CAPS, SEALS & COVERS EMD - TRACTION MOTOR Axle Caps Bearing Caps Bearing Housings Caps Collars Flingers Frame Heads Housings Seals Sleeves Spacers Shims Laminations Armature Shafts

GE Traction Motors GE – Models Domestic 5GE747, 5GE751, 5GE752, 5GE763, 5GE764 GE Traction on Alco’s 731 & 761-PA GE – AC Models GEB7, GEB13, GEB15 All of the above models are similar in appearance and are the same general size. The construction of internal parts limits interchangeability. Currently developing 5GE752AH Equipped with U-Tube.

EMD Traction Motors, Domestic & International Typically found in South America Europe Asia Africa Narrow Gauge D43-BTR Typically found in Canada United States of America The D87BTR has an overall length of 43.37 in.  The D43 has an overall length of 32.06 in.  The D43 is 11.31 in. shorter that the D87BTR.  Therefore a D43 is nearly a foot shorter than a D87BTR Standard Gauge D87-BTR

Axle Bearing Housings vs. Brass EMD – Housing Axle Bearing, AKA – U Tube Hundreds are currently in service to date. D77/D87 Motors to D77BTR/D87BTR Roller Support Type Replaces the conventional Lined Bronze Support Bearing to the new Roller Support arrangement. EMD – U TUBES 40006120 D77BTR & D87BTR 40006950 D87 40045090 AC 2630 40053326 D90 40035256 D90 40105488 AC 3424 Improved Design Heavier Wall Thickness at C.E Sensor Holes drilled (ready for Sensor Installation)

“D99” Unique Design

Old vs. New Newer Generation Axle Mounting Style Older Generation Axle Mounting Style Newer Generation Axle Mounting Style Roller Support Type: Replaces the conventional Lined Bronze Support Bearing to the new Roller Support arrangement. Old vs. New Housing Axle Bearing 1 Piece Design RTC “D99” unique design uses D90/D100 electrical rotating motor with D87BTR Housing Axle Cap CE Axle Cap PE There Exist two types of Axle Caps The standard one and a high oil capacity. Improved & Sturdier Enhanced Design Support Bearing

D87BTR Stator Frame - Fabricated Pinion End Section P.E Magnetic Section Mag Sec Commutator End C.E

Pinion end Steel parts, D87BTR 9550074 Armature 9082219 Brg Cap 9329440 Slinger 9554496 Seal Outer 9554495 Brg Cover 40006434 Brg Housing

D87BTR Pinion End Assembly

Commutator Assembly, D87BTR

D87BTR Bull Gear and Gearcase

“D99” uses D87 BTR Mechanical Parts – Enhanced Design

D99 Utilizes D90/100 Electrical Rotating Components D87BTR Shell D90/100 Commutator Commutator is composed of; Hub Mica Cylinder, Segments Mica V Ring Spider Cooper Segments Counter weight Insulation Misc Hardware Insulating Cement Armature Shaft Armature Assembly D90/100 Armature Laminations, Typically 480 per stack with Two End Plates

Completed D99 COMBO