2-FXL16.5.pdf
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- Attached to
- Competitive Selection OH|DOT023A26-4
- Contract number
- DOT023A26-4
- Issued by
- Ohio
About this file
This document is a sales engineering publication from Mack Trucks, Inc., located in Allentown, Pennsylvania, detailing technical specifications for the FXL16.5 Front Axle, a heavy-duty truck component designed for a 16,500 lbs [7,848 kg] load capacity. The publication provides comprehensive technical details about the axle's construction, materials, and key mechanical characteristics.
The front axle features a Reverse Elliot, drop-forged, and heat-treated I-Beam with specific dimensional specifications, including a 4.75" beam center height and 3.50" flange width. The steering knuckle is constructed from chromium molybdenum alloy steel and includes tapered roller bearings, a ductile iron hub, and permanently lubricated components. The braking system utilizes a Bendix air-actuated cam brake with 16.5" diameter, 0.86" lining thickness, and self-adjusting mechanism. The suspension offers two spring options: a standard taperleaf shackle and an optional multileaf shackle, both with a 52.52" length and 4" width, suitable for GU chassis models.
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Text version
DETAIL SPECIFICATIONS
MAKE: MACK
Type . . . . . . . . . . . . . Reverse Elliot, Drop-Forged
& Heat Treated I-Beam Size (Beam Center Height) . . . . . 4.75" [121 mm] Flange Width . . . . . 3.50" [89 mm] Top & Bottom Web Thickness . . . . . . . . . . . . . . . 0.75" [19 mm] Section Modulus . . . . . . . . . . . 9.90" in3 [172 cm3]
STEERING KNUCKLE:
Material . . . . . . . . . . . . . Chromium Molybdenum
Alloy Steel, Heat Treated Spindle Diameter
Inner Bearing . . . . . . . . . . . . . . 2.68" [68 mm] Outer Bearing . . . . . . . . . . . . . . 2.68" [68 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
FXL16.5
16,500 LBS. [7 848 kg]
STEERING KNUCKLE: (Continued)
Inclination . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5° 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:
FXL16.5 . . . . . . . . . . . . . . .69.92" [1 776 mm]
Spring Centers . . . . . . . . . . . 32.5" [826 mm] GU
NOTE: FXL used with wide base type tires will exceed 96" [2 438 mm] overall width.
• Unitized wheel hubs—requires no maintenance—permanently sealed with grease.
• Sealed tapered kingpins and bearings keep out road splash, extend axle life and lower maintenance.
• Forged I-Beam construction, strong and lightweight.
FRONT AXLE
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.
FXL16.5
16,500 LBS. [7 848 kg]
BRAKES
SUSPENSION
TAPERLEAF SHACKLE MULTILEAF SHACKLE
SPRING CAPACITY
(GRD. LOAD RATING) SPRING SIZE
SPRING SIZE CHASSIS MODEL
APPLICATIONLENGTH WIDTH
16,500 lb.
[7 848 kg]
STD.
Taperleaf - Shackle 52.52" [1 334 mm] 4" [102 mm] GU
Multileaf - Shackle 52.52" [1 334 mm] 4" [102 mm] GU (OPT.)
TYPE CAM
SIZE DIAMETER
WIDTH
16.5" [419 mm]
6" [152 mm] MAKE Bendix ACTUATION Air
LINING THICKNESS 0.86" [22 mm]
LINING AREA, TOTAL 376 in2 [2 439 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
©2012 Mack Trucks, Inc. FRO029 2401508 02/01/2012 Printed in U.S.A.
File details come from the government source that posted it. Updated .