Wednesday, June 9, 2021

Matco Brakes and Wheels

The 10 year old never used bearing seals were cracked.   I called Matco and was advised that due to age alone, the seals should be replaced.   A sticker on the wheel has WHLW51LT with 09/2012 date.   The caliper wasn't stamped with the model number but based on the sticker that was on the wheel, appears to be the "Triple Piston 51LT".

 https://static.veracart.com/matco/item_pdfs/2531/document1.pdf

http://www.matcomfg.com/W51LTTRIPLEPISTON-idv-2382-33.html

Tech manual

From the product web page:

MATCO mfg produces a superior 5" inch wheel and brake assembly for use with aircraft requiring less than 1420 lbs per wheel. This model uses 1.25 inch TAPER/ROLL bearings. (Check the product comparison table for other bearing and caliper configurations).

DIMENSIONS - The W51LXT is a 5" inch wheel with 4.65 inch width with an additional 1.39 inch caliper spacing. Bearing spacing is 2.98 inches and axle spacing is 1.36 inches. The total weight of this wheel and brake assembly is 9.2 pounds. The bearing axle diameter is 1.25 inches.

FEATURES - The W51LT is centrifugally cast utilizing 535 aluminum alloy for superior strength and corrosion resistance. This alloy provides a light weight wheel and affords many years of efficient performance. The W51LT features the WHLB5T brake assembly and high energy disc for increased braking performance. The WHLB5T brake uses three 1.25 inch diameter pistons in a single caliper to provide maximum torque low profile package. This internal caliper design is favored for use in many retractable gear systems for it's low profile compared to external caliper designs when low drag and clean lines are desired. The wheel is designed to use 5.00-5 aircraft style tires. (Specify the W50LT for use with 11x400x5 'Lamb' type tires). The WHLA1A axle or WHLAXLE1A axle assembly (includes axle, nut, and washer) are designed to be used with the W51LT. (Please see the W51LXT for a higher torque version of this wheel & brake).

 

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