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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Oscillation special bearings and common bearings "function large PK" Oscillation special bearings and common bearings "function large PK"
1. Select the special bearing for data oscillation: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
.1) adhere to the selection of aluminum iron manganese bronze materials; high strength; good elasticity; better wear resistance.
.2) The inner and outer rings and the rolling body are selected from vacuum degassing bearing steel; the fatigue resistance is good.
Usually bearings:
.1) adhere to the selection of zinc brass raw materials; low strength; poor elasticity.
.2) The inner and outer rings and the rolling body are usually made of bearing steel.
2. Special bearings for internal clearance oscillation:
The clearance is produced according to the demand of the oscillating machinery; the scale control is on a small scale; the consistency is good.
Usually bearings:
The play is usually produced according to the specification group or the C3 group; the clearance or the 蚴 段 螅 螅 螅 肷 (12) source.
3, the use of special bearings for oscillation:
Low noise; temperature rise. 榷ã„院茫皇褂 倜ム倜ム倜ム缙谄 缙谄 窒 窒 @ drag 窒.
Usually bearings:
High noise; elevated temperature; poor stability; short service life; early fatigue appearance.
4. Depicting the layout oscillation special bearing:
.1) Use the inner ring rib to guide the roller; improve the roller operation.
.2) The outer diameter of the aligning bearing is marked with oil groove oil hole; smooth effect is good.
.3) Cylindrical roller bearing retaining frame adopts integral layout; the strength is greatly improved.
.4) Persist the frame to guide the roller by the outer ring rib; reduce the force on the roller.
.5) The diameter of the roll body is increased; the length of the roll body is increased.
Usually bearings:
.1) The outer diameter of the aligning bearing has no oil groove oil hole; the smoothing effect is poor.
.2) Cylindrical roller bearing brackets use rivet layout; simply loose and cover.
.3) Roller diameter and roll length are both. 4) Adhere to the roller or inner ring guide.
5, heat treatment method oscillation special bearings:
.1) When working within 150C temperature; good stability.
.2) The inner and outer rings are selected from Bay-Machine mixed quenching or Martens quenching + high temperature tempering; uniform hardness; internal stress. è—托院茫豢 hook 寤骱 camel.
Usually bearings:
The inner and outer rings are usually quenched; the resistance is poor; the impact resistance and oscillation function are poor; the thermal stability is not good.
6. Special bearings for public service and production process oscillation:
.1) The rolling scales are different from each other ≤ 0. 002 (2) tumbling super-fine finishing; high finish.
.3) Strictly produced according to P6 precision specifications; special internal and external OD is very small.
.4) The outer diameter of the cylindrical roller has a convexity; the stress is prevented.
Usually bearings:
.1) Roller grouping ≤ 0. 005.
.2) Some raceways are only polished; the finish is low.
.3) Usually PO level precision public service (some P6 level specifications) production.
.4) Cylindrical roller without convexity.
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Source: China Bearing Network Time: 2018-05-22