2-MACK_FXL14.6_FRT_AXLE.pdf
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- Attached to
- Competitive Selection OH|DOT04426-5
- Contract number
- DOT04426-5
- Issued by
- Ohio
About this file
This document is a detailed specification sheet from Mack Trucks, Inc., located in Allentown, Pennsylvania, for their FXL14.6 Front Axle, a technical engineering publication dated February 26, 2007. The document provides comprehensive technical specifications for a front axle designed for commercial truck applications, specifically for chassis models including CHU, CXU, GU, and MRU.
The FXL14.6 front axle is rated for 14,600 lbs (6,623 kg) and features a forged I-beam construction with specific engineering details such as a reverse Elliot, drop-forged, and heat-treated design. Key technical specifications include a beam center height of 3.74" (95 mm), a steering knuckle made of chromium molybdenum alloy steel, and unitized wheel hubs that are permanently sealed with synthetic grease. The axle includes Arvin Meritor air-actuated brakes with self-adjusting capabilities and offers multiple suspension configurations including taperleaf and multileaf spring options with varying lengths and widths to accommodate different chassis models.
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Text version
• Forged I-Beam construction, strong and lightweight.
• Sealed tapered kingpins and bearings keep out road splash, extend axle life and lower maintenance.
• Unitized wheel hubs—requires no maintenance—permanently sealed with grease.
MAKE: MACK
Type . . . . . . . . . . . . . Reverse Elliot, Drop-Forged
& Heat Treated I-Beam Size (Beam Center Height) . . . . . . 3.74" [95 mm] Flange Width,Top . . . . . . . . . . . . . 3.35" [85 mm] Flange Width, Bottom . . . . . . . . . . 3.35" [85 mm] Web Thickness . . . . . . . . . . . . . . 0.394" [10 mm] Section Modulus . . . . . . . . . . . . 5.82" in3 [95 cm3]
STEERING KNUCKLE:
Material . . . . . . . . . . . . . Chromium Molybdenum
Alloy Steel, Heat Treated Spindle Diameter
Inner Bearing . . . . . . . . . . . . . . 2.28" [58 mm] Outer Bearing . . . . . . . . . . . . . . 2.28" [58 mm]
Steering Knuckle Pin:
Material . . . . . . . . . Modified Carbon Steel, Heat
Treated & Induction Hardened Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tapered Diameter
Top . . . . . . . . . . . . . . . . . . . . . . 1.57" [40 mm] Bottom . . . . . . . . . . . . . . . . . . . 2.36" [60 mm]
Mack Trucks, Inc., Allentown, Pennsylvania
FXL14.6
DETAIL SPECIFICATIONS
14,600 LBS. [6 623 kg]
STEERING KNUCKLE: (Continued)
Inclination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6° Knuckle Pin Support
Upper . . . . . . . . . . . . . .Tapered Roller Bearing Lower . . . . . . . . . . . . . . . . . . Grooved Bushing
Thrust Bearing Type . . . . . . . . . . . . . . Tapered Roller Bearing
Location . . . . . . . . . . . . . . . . . Top of Knuckle Pin Hub . . . . . . . . . . . . . . . . . . . . . . . . . . Ductile Iron Bearings . . . . . . . . . . . . Tapered Roller (Unitized) Lubrication . . . . . . . . . . . . . . . Permanently lubed with Synthetic Grease
Pivot Centers:
FXL14.6 . . . . . . . . . . . . . . .69.92" [1 776 mm]
Spring Centers . . . . . . . . . . 33.5" [851 mm] MRU 32.5" [826 mm] CHU, CXU, GU
NOTE: FXL used with wide base type tires will exceed 96" [2 438 mm] overall width.
FRONT AXLE
©2007 Mack Trucks, Inc. FRO032 240 1507 2/26/2007 Printed in U.S.A.
A SALES ENGINEERING PUBLICATION
The information in this brochure was accurate as known as of the date of the publication. Illustrations may not be representative of current product. Mack Trucks, Inc. reserves the right to make changes in specifications, equipment or design, or to discontinue models or options without notice at any time.
FXL14.6
14,600 LBS. [6 623 kg]
BRAKES
SUSPENSION
MULTILEAF EYE & SLIPPER
TAPERLEAF EYE & SLIPPERTAPERLEAF SHACKLE
MULTILEAF SHACKLE
SPRING CAPACITY
(GRD. LOAD RATING)
SPRING SIZE
SPRING SIZE CHASSIS MODEL
APPLICATIONLENGTH WIDTH
14,600 lb.
[6 623 kg]
STD.
Taperleaf - Shackle 52.52" [1 334 mm] 4" [102 mm] CHU, GU
Taperleaf - Shackle 58.85" [1 495 mm] 4" [102 mm] CXU
Multileaf - Shackle 52.52" [1 334 mm] 4" [102 mm] GU
Multileaf - Slipper 50.25" [1 276 mm] 3.5" [89 mm] MRU
TYPE CAM
SIZE DIAMETER
WIDTH
16.5" [419 mm]
5" [127 mm]
MAKE Arvin Meritor
ACTUATION Air
LINING THICKNESS 0.85" [22 mm] Tapered
LINING AREA, TOTAL 157 in 2 [2 026 cm2]
CHAMBER SIZE—
Sq. In. Per Wheel
1 @ 24 [155 cm2]
SLACK ADJUSTER LENGTH 5.5" [140 mm]
BRAKE ADJUSTMENT Self-Adjusting
DUST SHIELDS Optional
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