The 60B was catalogued as a separates item in the UK and Australia, though listed with lower stature than its cousin the SL65B...you had to look for it!
The original poster being in Malaysia, it could be from the Australian distributor.
Burned-out motor bobbins could be replaced, back in the day when Garrard was still in business. You could order them from Service and Spares in Swindon, but not from the USA importer. Here in the States, it was always easier to get a used motor off a unit which had been dropped, or abused and broken.
If the OP can locate a proper-voltage or dual-voltage four-pole motor for 50/60 Mk II, SL55/65, SL55B/SL65B, SP25 Mk I-IV, it can probably be swapped in directly, by using the plugs. Older models may require exchanging the entire wiring harness. But the motor and its original pulley must remain together...the SL models and SP25 Mk IV have synchronous motors which spin faster, but they would be an upgrade. DSJR has done that, and I upgraded a 50 Mk II with SL55 motor, SL65 tonearm and heavy cast platter, and for appearance, an overarm from an AT60. It is now effectively an SL65 except for its nameplate badge and not having antiskate, which with the lateral friction in the Autoslim chassis, I would turn off at 3 grams or less anyway.