This motor is double
Riccar RE572 Sewing Machine Instruction Manual (Model RE572) - 46 Pages
The quilt pattern has sizing instructions from 44in by 60in all the way up to king size
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Thread Take-Up Lever, Juki #229-18072 LVWarehouse This motor is doubleGuaranteed to fit Juki Sewing Machine Models: DDL 5550, DDL 5550N, DDL 8700, DDL 8700 7, DLN 5410N 7, DLN 5410NJ 7 Guaranteed to fit SunStar Sewing Machine Models: KM 530, KM 530 7N, KM 530 7S, KM 506, KM 506 7S, KM 350A, KM 350A 7N, KM 350A 7S, KM 350B, KM 350B 7N, KM 350B 7S Alternate Part Numbers: 110 39062, 110 39070