Dressed Trailer Axle Codes
Example Axle Part Number — R22S67L7HSMCC
Below is a breakdown of what our dressed axle part numbers mean: Spindle — ( R22S67L7HSMCC ) “R” – Tapered spindle – HM212049/HM218248 bearing combination “P” – Parallel spindle – HM518445/HM518445 bearing combination Wall Thickness — ( R22S67L7HSMCC ) “22” – .59”/15mm Wall rated at 22,500 lbs for air ride, 25,000 lbs for spring suspensions “25” – .75”/19mm Wall rated at 25,000 lbs for air ride, 27,500 lbs for spring suspensions Axle Tube — ( R22S67L7HSMCC ) “S” – 5” round straight Available Axles: Brake Drum Diameter — ( R22S67L7HSMCC ) “6” – 16.5” Drum diameter “R” Axle Series R22S67L7HAMCC Brake Shoe Width — ( R22S67L7HSMCC ) R22S67L7HSMCC “7” – 7” Wide shoe with 16.5” drum R22S67L8HAMCC Cam Length — ( R22S67L7HSMCC ) R22S67L8HSMCC “L” – Long cam – 24.12” R25S67L7HAMCC R25S67L7HSMCC Axle Track — ( R22S67L7HSMCC ) R25S67L8HAMCC “7” – 71.5” Axle track R25S67L8HSMCC “8” – 77.5” Axle track Wheel Mount — ( R22S67L7HSMCC ) “P” Axle Series “H” – Hub pilot mount ABS hubs P22S67L7HAMCC P22S67L7HSMCC Wheel Stud Length — ( R22S67L7HSMCC ) P22S67L8HAMCC “A” – Long wheel stud for aluminum to aluminum disc wheels P22S67L8HSMCC “S” – Short wheel stud for steel to steel disc wheels P25S67L7HAMCC Brake Drum — ( R22S67L7HSMCC ) P25S67L7HSMCC “M” – Machine balanced drum P25S67L8HAMCC P25S67L8HSMCC Air Chamber — ( R22S67L7HSMCC ) “C” – 3030 combination air chamber 2.5” standard stroke
Slack Adjuster — ( R22S67L7HSMCC ) (continued on page 2) “C” – Clearance sensing auto slack
Visit us on the World Wide Web at www.daytonparts.com Call Center, USA • 800-233-0899 Call Center, Canada • 877-798-2931 2 - Dressed Trailer Axle Codes Dayton Parts, LLC
Continued from page 1
10 Stud Hub Pilot Wheel Mount ABS Hub
Premium Wheel Seals Made with HNBR Material for Temperatures Down to -40°F/-40°C
112 lbs OE Weight Hubs Filled with Machine Balanced SAE 80W-90 GL-5 Oil Brake Drum
3030 Combination Hub Cap Air Chamber Protectors 2.5" Standard Stroke Included
0.59" or 0.75" Wall Thickness
Cast ABS Clearance Sensing Ready Spider Automatic Slack Adjusters
O E Equivalent Brake Shoe Hardware
Copper Free Material 4707 Brake Shoes DS23 23k Rated Standard Grade Copper Free Friction Material
Sintered Metal Cam Spider Bushing
24.12" Long Cam