MIDWESTWHEEL.COM MEMBER KANSAS CITY 5801 E. Front St. Main ....(816) 471-1552 Parts....(800) 821-7402 JOPLIN 2424 Stephens Blvd. Main ....(417) 717-6022 Parts....(866) 318-9111 SPRINGFIELD 812 Lillian Dr. ∙ Strafford, MO Main ....(417) 429-2476 Parts....(800) 785-3705 SIOUX CITY 1819 4th St. Main ....(712) 252-7969 Parts....(800) 943-3534 CEDAR RAPIDS 200 50th Ave. S.W. Main ....(319) 365-4453 Parts....(800) 332-5435 DES MOINES 1436 E. Ovid Ave. Main ....(515) 265-1491 Parts....(800) 888-0248 CLEAR LAKE 840 Hwy. 18 W. Main ....(641) 357-7101 Parts....(800) 397-5630 DAVENPORT 8502 Northwest Blvd. Main ....(563) 322-2671 Parts....(800) 553-1886 OMAHA 5822 F St. Main ....(531) 239-3050 Parts....(800) 322-8757 NEBRASKA IOWA MISSOURI August 2023 (04Meritor Axles) The Support You Deserve. Our highly trained Customer Care team is equipped with the product specification, warranty and service information you need. For the right support right when you need it, call our Customer Care Center at 888-725-9355 (in Canada, call 800-387-3889). Or visit MeritorPartsOnline.com, our industry-leading online catalog, ordering and tracking system, with real-time access to parts information resources, including a reference library with a variety of technical drawings on components and systems. Brake Diameter 0 = Brake flange/torque plate 2 = 12¼” (31cm) 5 = 15” (38cm) (1) 6 = 16½” (42cm) 7 = 17” (43cm) 8 = 18” (46cm) Beam Capacity lbs. (kg) N = 22,500 (10,206) Q = 25,000 (11,340) 30,000 (13,608) P = 22,500 (10,206) 25,000 (11,340) R = 22,500 (10,206) 25,000 (11,340) B = 22,500 (10,206) 25,000 (11,340) L = See Sec. 3 of SP-8320 T P* P - 4 6 7 1 - L R - 1 1 2 0 * Bearings N = HM218248 / HM212049 P = HM518445 / HM518445 Q = HM218248 / HM212049 R = 594A / 580 B = Unitized hub and bearings Modification 1 = Single wheel 2 = Intermodal 3 = Bolted on brake/disc brakes 4 = Standard wall thickness 5 = MPA38 WALL (.430) 6 = Positive bearing adj. (obsolete) 8 = Heavy wall thickness (5/8”) 9 = Heavy wall thickness (3/4”) (1) Drum or rotor (2) Denotes brake shoe width or pad size (3) Service beam only (4) Equipped with brake shoes and camshafts (5) Equipped with camshafts but no brake shoes (6) Not available in crank or drop center axles (7) All axles will have ABS block installed RHP/MPA & RFS/MTA 0 = Less seat brackets 1 = 16½” Front RHP/MPA 2 = 16½” Rear RHP/MPA 3 = 17½” Front RHP 4 = 17½” Rear RHP 5 = 18½” Front RHP 6 = 18½” Rear RHP 7 = 17½”-18½”-Front MPA 8 = 17½”-18½”-Rear MPA 9 = Trailing arms, w/bushings Brake Width 0 = Brake flange/torque plate 1 = 10” (25cm) 6 = 6” (15cm) 7 = 7” or 7½” (18-19cm) 8 = 8-5/8” (22cm) Brake, (Service axles) L = Q+ Cam brake - standard service axles NA = No brakes & no TCH, with ABS sensors (5) NR = Less brakes and less TCH (5) LR = With brakes, less TCH (4) NM = Meritor tire inflation prepped, less brakes (5) LM = Meritor tire inflation prepped, with brakes (4) RHP/MPA Service axles w/suspension seats NS = Less brakes (5) LS = With brakes (4) NP = Less brakes (5), PSI prep LP = With brakes (4), PSI prep NT = Less brakes (5), thermalert prep LT = With brakes (4), thermalert prep TS = Torque plates for disc brakes TP = Torque plates for disc brakes, PSI prep TT = Torque plates for disc brakes, thermalert prep NU = Less brakes, vented LU = With brake, vented TU = Torque plates, vented RFS/MTA w/trailing arm service axles LA = RFS23T, with brakes LB = RFS25T, with brakes LC = RFS30T, with brakes *See PB-0226, for standard RFS replacement specs Miscellaneous 0 = FMVSS121 Brake certification (obsolete) 1 = Equipped for ABS (7) 6 = Wabash MBS2 prepared Track (TAC) 1 = 71.50 (35.00”) 7 = 77.50 (41.00”) 8 = 83.50 (47.00”) *TAC = Trailing arm centers (applicable for RFS/MTA only) Lining Mix 0 = No brake 1 = R202 (obsolete) 2 = R301 3 = R201 (obsolete) 4 = SOR615 5 = MA212 6 = MA312 6 = MA312 Note: The last four digit designations apply to Aftermarket Axle Model Numbers only. These designations do not apply to Production Axle Model Numbers. Please refer to SP-8320. 4-5-12 Added RFS axle nomenclature option for generic beam, trailing arm, bushing, and brake specs. See PB-0226 for Standard RFS service nomenclature. Cam Length/Spline 0 = No cams 1 = Short 28T 2 = Intermediate 28T 3 = Long 28T 4 = Short 10T 5 = Intermediate 10T 6 = Long 10T Design Variations C = Crank D = Drop (BLANK) = Straight Beam Type T = Tubular Aftermarket Trailer Axle Nomenclature. The Support You Deserve. Our highly trained Customer Care team is equipped with the product specification, warranty and service information you need. For the right support right when you need it, call our Customer Care Center at 888-725-9355 (in Canada, call 800-387-3889). Or visit MeritorPartsOnline.com, our industry-leading online catalog, ordering and tracking system, with real-time access to parts information resources, including a reference library with a variety of technical drawings on components and systems. Brake Diameter 0 = Brake flange/torque plate 2 = 12¼” (31cm) 5 = 15” (38cm) (1) 6 = 16½” (42cm) 7 = 17” (43cm) 8 = 18” (46cm) Beam Capacity lbs. (kg) N = 22,500 (10,206) Q = 25,000 (11,340) 30,000 (13,608) P = 22,500 (10,206) 25,000 (11,340) R = 22,500 (10,206) 25,000 (11,340) B = 22,500 (10,206) 25,000 (11,340) L = See Sec. 3 of SP-8320 T P* P - 4 6 7 1 - L R - 1 1 2 0 * Bearings N = HM218248 / HM212049 P = HM518445 / HM518445 Q = HM218248 / HM212049 R = 594A / 580 B = Unitized hub and bearings Modification 1 = Single wheel 2 = Intermodal 3 = Bolted on brake/disc brakes 4 = Standard wall thickness 5 = MPA38 WALL (.430) 6 = Positive bearing adj. (obsolete) 8 = Heavy wall thickness (5/8”) 9 = Heavy wall thickness (3/4”) (1) Drum or rotor (2) Denotes brake shoe width or pad size (3) Service beam only (4) Equipped with brake shoes and camshafts (5) Equipped with camshafts but no brake shoes (6) Not available in crank or drop center axles (7) All axles will have ABS block installed RHP/MPA & RFS/MTA 0 = Less seat brackets 1 = 16½” Front RHP/MPA 2 = 16½” Rear RHP/MPA 3 = 17½” Front RHP 4 = 17½” Rear RHP 5 = 18½” Front RHP 6 = 18½” Rear RHP 7 = 17½”-18½”-Front MPA 8 = 17½”-18½”-Rear MPA 9 = Trailing arms, w/bushings Brake Width 0 = Brake flange/torque plate 1 = 10” (25cm) 6 = 6” (15cm) 7 = 7” or 7½” (18-19cm) 8 = 8-5/8” (22cm) Brake, (Service axles) L = Q+ Cam brake - standard service axles NA = No brakes & no TCH, with ABS sensors (5) NR = Less brakes and less TCH (5) LR = With brakes, less TCH (4) NM = Meritor tire inflation prepped, less brakes (5) LM = Meritor tire inflation prepped, with brakes (4) RHP/MPA Service axles w/suspension seats NS = Less brakes (5) LS = With brakes (4) NP = Less brakes (5), PSI prep LP = With brakes (4), PSI prep NT = Less brakes (5), thermalert prep LT = With brakes (4), thermalert prep TS = Torque plates for disc brakes TP = Torque plates for disc brakes, PSI prep TT = Torque plates for disc brakes, thermalert prep NU = Less brakes, vented LU = With brake, vented TU = Torque plates, vented RFS/MTA w/trailing arm service axles LA = RFS23T, with brakes LB = RFS25T, with brakes LC = RFS30T, with brakes *See PB-0226, for standard RFS replacement specs Miscellaneous 0 = FMVSS121 Brake certification (obsolete) 1 = Equipped for ABS (7) 6 = Wabash MBS2 prepared Track (TAC) 1 = 71.50 (35.00”) 7 = 77.50 (41.00”) 8 = 83.50 (47.00”) *TAC = Trailing arm centers (applicable for RFS/MTA only) Lining Mix 0 = No brake 1 = R202 (obsolete) 2 = R301 3 = R201 (obsolete) 4 = SOR615 5 = MA212 6 = MA312 6 = MA312 Note: The last four digit designations apply to Aftermarket Axle Model Numbers only. These designations do not apply to Production Axle Model Numbers. Please refer to SP-8320. 4-5-12 Added RFS axle nomenclature option for generic beam, trailing arm, bushing, and brake specs. See PB-0226 for Standard RFS service nomenclature. Cam Length/Spline 0 = No cams 1 = Short 28T 2 = Intermediate 28T 3 = Long 28T 4 = Short 10T 5 = Intermediate 10T 6 = Long 10T Design Variations C = Crank D = Drop (BLANK) = Straight Beam Type T = Tubular Aftermarket Trailer Axle Nomenclature.
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