Short Report
ASLONG JGB37-520GB: A 72-Hour Turnaround After a “Stall” Alarm
ASLONG JGB37-520GB: A 72-Hour Turnaround After a “Stall” Alarm
28 Aug 2025, 01:37 —— A red @ALL pops up in ASLONG’s customer chat:
“JGB37-520GB stalls 3° after 96 h in high-temp aging. SOP is 5 Sept—help!”
“JGB37-520GB stalls 3° after 96 h in high-temp aging. SOP is 5 Sept—help!”
Problem Snapshot
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Test bed: 55 °C, 24 V, 4 kg·cm, 30 s forward-reverse cycles.
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Symptom: output shaft “hitches”, current ripple jumps from ±0.2 A to ±1.1 A.
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Root cause: grease flash-off → dry meshing → micro-cracks → stall.
72-Hour Lightning Action
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0–8 h
• Lab tear-down confirms 18 % grease weight loss.
• 5 kg of 220 °C fluorinated grease flown to the line. -
8–24 h
• Night shift swaps grease station; fill weight up from 0.35 g to 0.45 g.
• 100 fresh units go into 55 °C accelerated test—stall rate 0/100. -
24–48 h
• QA adds “high-temp + high-cycle” matrix: 55 °C / 12 rpm / 4 kg·cm / 1 000 cycles.
• Results: no tooth wear, grease loss < 2 %. -
48–72 h
• Release JGB37-520GB High-Temp Boundary V2.0 white paper, live online.
• Customer mail on 1 Sept: “Production green—thanks for 72-hour miracle.”
One-liner
A single grease refill saved a 30 k-unit order—JGB37-520GB proved in 72 hours that even small motors can deliver big reliability.
A single grease refill saved a 30 k-unit order—JGB37-520GB proved in 72 hours that even small motors can deliver big reliability.