1988/1922 yil rulmani tavsifi:
d: 28,575 mm
D: 57,15 mm
T: 19,845 mm
Massa: 0.22 kg
Cr (N): 40000
Cor (N): 44500
Rulman turi: bitta qatorli stakan va konusning yig'ilishi, imperatorlik
O'zaro almashinuv: 1988/1922, 1988/22, 1988/1922 / Q, 4T-1988/1922, set21, 1988-1922 va boshqalar.