jbt 7048-1993 滚动轴承 工程塑料保持架技术条件

J11JB/T704819931993-09-231994-07-0111–30~+120dn0.6×106mmr/min240mm320mmdn0.6×106mmr/min40°2GB1039GB1040GB8597JB/T663866ZBJ1102033.1DC1DCDCPBCSφ∆aJZCLC121993-09-23JB/T704819931994-07-01JB/T704819932123.2σt44.1JB/T6638GRPA66—254.2JB/T7048199334.380~904.4100±21h4.5111σt65MPa234a.b.c.55.1A5.25.35.45.55.5.1Sφ∆a0.01mm5.5.2JDC1DCBC0.01mm66.16.2100%6.3ZBJ11020σtAQL2.5AQL4.0S–3AcReJB/T70481993477.1GB85977.27.37.47.5JB/T704819935AA1A1.11%15%~85%10±5mm/minA1.2A1A1JB/T704819936A2GB1039A2.125±265±5%A2.2A2.2.124hA2.2.2100~1106h24hA3100005A4A1GB1040A5σtA5.1σtA1SP/t=σA1σtMPaN/mm2PNSmm2A5.2SA5.2.1SA2A2)2(2ABCDSSS−=A22222/ααα−−=SRSRSSRAB2/arcsin180/2πα=A5.2.2SA3A2))((2CC1CCLDDDS−−=A3A2JB/T704819937A5.2.3SA4A3)(2EFGHABCDSSS+=A4A5.2.4SA5A4[]bSSSSSSS)(221GFOEHGODAOABCO2211+−−+−=A5S=αSR/2SRB/arcsin180/πα=A3A4JB/T70481993JB/T70481993*2100044*88012301/165/812,0001994519945110006.001291