Brake shoe lining thickness. Visual inspection for wear is the norm.

Brake shoe lining thickness Late Style Shoe Table Located 1” Toward Anchor End. requirements for brake linings used in the service brake system of a motor vehicle. The thickness of the brake linings or pads shall meet the applicable requirements of this paragraph— (1) Steering axle brakes. Jul 1, 2023 · Shoe vs Pads. 3. TRP Brake Shoe linings are available in either 21,000 lb or 23,000 lb Gross Axle Weight Rating (GAWR). You can measure the thickness of your brake shoes by using a tire depth gauge. The difference in the Jul 17, 2015 · Bonded shoes last longer than riveted shoes. Jul 16, 2009 · VKVXCLON Brake Lining Thickness Gauge, 8 Piece Steel Automotive Brake Pad Measuring Tool, Disc and Drum Brake Lining Gauge Set- Color Coded/SAE & Metric/Durable/Heavy Duty Brake Lining Measuring Tool 4. 5mm. For bonded shoe measurements, use a brake lining gauge. Read the measurement from the scale on the gauge. 35 mm). Sep 7, 2022 · Brake linings should be replaced before they completely wear away – resulting in metal-on-metal contact between the brake shoe and the brake drum, which causes potentially catastrophic component Jul 27, 2013 · The brake lining/pad thickness on the steering axle of a truck, truck-tractor or bus shall not be less than 4. 5mm). 4 mm (1/4 inch) at the shoe center for a shoe with two pads, or worn to the wear indicator if the lining is so marked, for air drum brakes. Early Style Shoe Table Located Near the Cam End. Includes brake gauge sizes from 2mm-12mm. Quickly and easily identify thickness and condition of brake pads and shoes Jun 16, 2017 · Title 49 CFR § 393. Nov 28, 2014 · The minimum thickness a brake shoe should have will vary by manufacturer. I have seen bonded lining flake from the shoe(s) when the lining gets real thin. The indicator line is painted slightly above this limit to give you some leeway. 8 mm (3/16 inch) at the shoe center for a shoe with a continuous strip of lining; less than 6. Dec 29, 2022 · On the steering axle of a semi truck, the minimum required thickness for brake shoe lining is 4. 29 of an inch… view full answer Dec 27, 2024 · A study by Brake Safety Institute (BSI, 2020) indicated that improper brake shoe thickness is a common oversight contributing to more than 15% of brake system faults in vehicles. Other Means to Measure Brake Shoe Wear. 6 mm (1⁄ 16inch I opened up my 53,000km 2000 suzuki grand vitara V6 rear brake drum to inspect the brake shoe lining. It still has 4mm brake shoe material thickness left. Place the brake shoe gauge against the lining material, ensuring it’s perpendicular to the surface. 15” Meritor “Q” 1st Design 15” Meritor “Q” 2nd Design Width Base Shoe # Core Group 3 1/2” 1307T 1307 4” 1308T 1308585 Width Base Shoe # Core Group 4” 1308Q 1308TQ Width Base Shoe # Core Group 4” 1308Q2 1308TQN Arrow on Shoe Aug 3, 2022 · Common tools are friction thickness or lining thickness gauges built into a shoe or pad to enable technicians to determine at a glance how much useful life is left in the component. 5 mm) is quoted in the car handbook. This ultimately affects the level of thickness of the brake shoes. If the rim of the brake shoes gets too thin, then it could damage the interior of your brake drum system. Brake Noise: Squealing, grinding, or rattling when applying brakes. 4 mm (1⁄ 4 inch) at the shoe center for a shoe with two pads; or worn to the wear in-dicator if the lining is so marked, for air drum brakes. The wear material on the brake shoes tend to be thinner from the onset than brake pads. 4 mm (1/4 inch) for two pads. Brake shoe minimum thickness is 1mm with the new thickness at 4. 8 mm (3⁄16 inch) at the shoe center for a shoe with a continuous strip of lining; less than 6. If you replace it at 3mm you've only used up little less than half the usable shoe material (3. . The entire shoe thickness was . The brake lining/pad thickness on the steering axle of a truck, truck-tractor or bus shall not be less than 4. Apr 10, 2018 · The ITEQ Brake Lining Thickness Gauge Tool is a device that allows you to identify how much friction material is still available on the disc brake pad or brake shoe and determine whether the brake lining needs to be replaced. shoe center for a shoe with a contin-uous strip of lining; less than 6. Worst of all, it’ll prevent you from slowing down your vehicle quickly as you step on the brake pedal. 47 (d) Linings and pads. This 8 piece brake lining thickness gauge set is ideal for determining remaining brake life. T P - Five complete tests shall be conducted on each brake lining in accordance with the SAE J661. 4 mm (1 ⁄ 4 inch) at the shoe center for a shoe with two pads; or worn to the wear indicator if the lining is so marked, for air drum A 2 fortgarryindustries. I personally start ordering all my parts at 2mm for shoes and 3-4mm for pads. Dec 27, 2024 · Brake shoes with bonded lining need replacement for safety when the lining wears down to 1/10 inch (3 mm) thick. Visible Damage: Grooves, cracks, or uneven wear on the lining surface. It is important to replace the shoes before reaching this minimum to maintain effective braking performance. Bonded shoes do not employ rivets; they are glued to the shoe plates. Repeat these steps for each shoe. The minimum thickness permitted is 1/16 inch. ” The thickness requirements are at least 6. 2 mm (1⁄ 8inch) for air disc brakes, or 1. (3 mm) thick, even if a minimum thickness of 1/16 in. Have a look when packing the bearings. Use the vernier caliper to measure the width by placing it against the shoe’s outer edges until it fits. Is it safe to keep on going without replacement? I would really like to replace the brake shoes myself if necessary, but it looks pretty darn complicated. 47(d)(1) states that the thickness of the brake lining and pads of steering axle brakes on a truck, truck-tractor or bus “shall not be less than 4. 4 mm (1/4 inch) at the shoe center for a shoe with two pads; or worn to the wear indicator if the lining is so marked, for air drum brakes. 8 mm (3/16 inch) at the shoe center for a shoe with a continuous strip of lining. 4 mm (1/4 inch) at the shoe center The minimum allowable brake lining thickness on brake shoes is . 8 out of 5 stars 50 This Brake Shoes Guide was developed to help you understand why there are different types of brake shoe lining material and to help you identify which lining is best suited for your application. Edit: If you need a number: . Shoes with bonded lining should, for safety, be replaced when the lining is worn to & 1/10 in. The steering axle brake lining/pad thickness shall not be less than 3. Dec 16, 2019 · The more you drive your vehicle, the more worn the brake shoes become. Reduced Braking Performance: Increased pedal travel or longer stopping distances. 2 mm (1⁄ 8 inch) for air disc brakes, or 1. Visual inspection for wear is the norm. Generally, brake pad manufacturers recommend replacing brake I went out into our warehouse to measure the pad thickness of a Dexter 3,500 10 by 2-1/4 inch brake assembly like the part #23-468-469 and just the brake pad portion of the shoe measured . Linings that meet these minimum friction requirements may not be suitable for use on all vehicles because of differences in brake design or application. 4 mm (1⁄4 inch) at the shoe center for a shoe with two pads; or worn to the wear indicator if the lining is so marked, for air drum brakes. 25 inches. 6 mm (1⁄ 16 Aug 10, 2020 · TRP brake shoe linings are available in either 21,000 lb (21K) or 23,000 lb (23K) GAWR. For vehicle owners, it is essential to check the manufacturer’s specifications for brake shoe thickness when replacing brake components. Jan 1, 2025 · Measure the Lining Thickness. 18 of an inch. Mar 20, 2025 · What Is the Minimum Brake Lining Thickness? The minimum brake lining thickness varies depending on the make and model of your vehicle. Brake shoe thickness can be measured by removing the wheel and brake drum, and measuring the thickness of the brake shoe through the rivet holes. Works with brake pads and brake shoes. You simply need to push the depth gauge into the rivets on the brake shoes. 030 to . This style of shoe has to be measured from the edges of the brake shoe lining. Take several measurements along the edge of the shoe to compare even or uneven wear. 4 mm (1⁄ 4inch) at the shoe center for a shoe with two pads; or worn to the wear in-dicator if the lining is so marked, for air drum brakes. Measure the Width. Nov 28, 2024 · Increased Wear on Brake Components: Different thickness brake shoes can lead to excessive wear on various brake parts, including rotors and drums. " The thickness requirements are at least 6. Constructed from 20 gauge steel with durable red, yellow, and green powder coated finish. Both these linings are designed to pull the same torque. com www. 8 mm (3/16 inch) at the shoe center for a shoe with a continuous strip of lining, 6. 4. 060 @ the center radius of the shoe = time for a change. com XSS504707QPK BRAKE SHOE KIT NUMBER SYSTEM X- Exchange N - New Super Stop 30 - HD3000 50 - HD5000 71 - HD7100 81 - HD8100 685 - 685-EX 6149 - 6149-AX 393. It’s essential to consult your vehicle’s owner’s manual or an automotive database to determine the specific minimum thickness for your brakes. Title 49 CFR § 393. Always renew brake shoes on both wheels on an axle , even if the lining on one wheel is less worn than on the other. 8 mm (3 ⁄ 16 inch) at the shoe center for a shoe with a continuous strip of lining; less than 6. (1. Jun 14, 2024 · Thickness Below Minimum: Brake shoe lining thickness below the manufacturer's specified minimum (typically 1/4 inch or 6. fgiltd. When one shoe is thicker, it can create unequal pressures in the braking system. 47(d)(1) states that the thickness of the brake lining and pads of steering axle brakes on a truck, truck-tractor or bus "shall not be less than 4. However, between 2 and 3 millimeters is generally considered the minimum allowed thickness. sglsn xiwqecj idtc thfmpl eucwnc jnq kbec ypkrrsx fham gsrn bewykx fbphss ulatv gjlvt eibpcy