Index SECTION B INTERCHANGEABLE BUSHINGS PRODUCT INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 QD Installation/Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 Steel Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 Standard Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4 Weld-On Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 QD Short Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6 TAPER BUSHINGS Installation/Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7 1008 — 3030 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8 3535 — 5050 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9 6050 — 120100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10 Weld-On Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11 Reborable Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12 MST® BUSHINGS Bushing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13 Installation & Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14 Weld-On Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15 IDLER BUSHINGS; QD, MST® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-16

7//aJi(ih MOUNTING PROCEDURE - QD BUSHINGS IMPORTANT - BE SURE TAPERED CONE SURFACES OF QD BUSHING AND INSIDE OF SHEAVE OR SPROCKET HUB ARE DRY AND FREE OF ALL FOREIGN SUBSTANCES SUCH AS PAINT, GREASE, OR DIRT. STANDARD Mounting Assembly FOR QD SHEAVES AND SPROCKETS 1. Be sure the tapered cone surfaces of the bushing and the inside of the driven product are clean and free of anti-seize lubricants. 2. Slide QD bushing on shaft, flange end first. Assemble key. 3. Position QD bushing on shaft. Tighten set screw over key "hand tight" with standard Allen wrench only. Do not use excessive force. 4....

All Steel QD Bushings #F = Length of Mating Bore ##G = Gap Between QD Bushing and Mating Hub QD Bushings — Steel Dimensions (Inches) Bushing SF-STL E-STL F-STL J-STL M-STL N-STL J-STL M-STL N-STL Plain Bores Not Split SH-STL SD-STL SK-STL SF-STL E-STL F-STL J-STL M-STL N-STL Shallow Key Dimension — Standard Key Keyway Screws Required Average Weight (Approx.) Standard Keyway and Key Dimension Keyway Shallow Key Dimension — Steel Key Keyway 1 Stock Bore Range Maximum Standard Shallow Minimum Keyway Keyway Reborable QD bushings made of Stainless Steel are available in many sizes. Non stock sizes...

Standard QD Bushings Dimensions (Inches) Bushing Bolt Circle Keystock provided for nonstandard keyways. Average Weight (Approx.) Millimeter Bore Inch Bore Bushing Stock Bore Range Maximum Standard Shallow Minimum Keyway Keyway #Important — The metric system does not refer to keyseat or keyway dimensions as does the English system; instead dimensions are given for the key itself which is rectangular in shape, not square as in the English system. NOTE: .03937 =1mm Ex—24 mm = 0.94488

QD & QD Short Weld-On Hubs QD Weld-On Hubs Martin QD Weld-On Hubs are suitable for use in many applications, such as welding to plate steel sprockets. QD Weld-On Hubs are made of steel, drilled, tapped and taper bored for QD bushings Catalog Number TYPE 3 Dimensions — Inches B (nom) P #Tolerance of D Dimension (or P dimension where applicable) Type Drilling Weight Pounds QD Short Weld-On Hubs L1 Weld-On Hubs are designed for use in conveyor pulleys. BC Catalog Number Type Drilling Weight Pounds Reverse Mount Only

Inch Bore Bushing Martin QD Short Bushings are suitable for use in belt conveyor applications wherever the short hubs of a conveyor pulley require the QD Short Bushing style. Dimensions Dimensions (Inches) Bushing Bolt Circle All dimensions are in inches, weight in pounds.

IMPORTANT NOTE: Please follow the instructions on this sheet in order for the bushing to perform satisfactorily. 1 Clean all oil, dirt, and paint from shaft, bushing bore, outside of bushing and component (sprocket, sheave...etc.) bore. 2 Insert bushing into component. Match the hole pattern, not the threaded holes (each hole will be threaded on one side only.) 3. Thread set or cap screws into those half threaded holes indicated by O on above diagram. Mount assembly on shaft. 4. Alternately torque set or cap screws* to recommended torque setting in chart below. 5. On 3535 and larger bushings...

No. 1008 to 3030 Taper Bushings Bore Bushing Keyseat Shaft Keyseat FOR REMOVING FROM SHAFT: BUSHING HALF OF HOLE THREADED. HUB HALF OF HOLE NOT THREADED. 8º TAPER INCLUDED ANGLE F SET SCREW FOR TIGHTENING ON SHAFT: HUB HALF OF HOLE THREADED, A BUSHING HALF OF HOLE NOT THREDED Dimensions Bushing Number Class 20 Gray Iron CØ Class 30 Gray Iron Bushings cannot be bored larger than largest bore listed. For detail dimensions required for machining hubs, consult factory. M Key furnished for these sizes only. For general reference. Severe conditions may require larger hub. Heavy well-located web may...