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| Bore diameter | d | Nominal bore diameter | |||
| ds | Single bore diameter | ||||
| dmp |
1.Bore diameter,arithmetrical mean of the largest and smallest single bore diameters in one plane 2.Diameter of the small end of a tapered bore,arithmetrical |
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| △ds | Deviation of a single bore diameter form the nomainal △ds = ds - d | ||||
| △dmp | Deviation of the mean bore diameter from the nomainal △dmp = dmp - d | ||||
| Vdp | Bore diameter variation;difference between the largest and smallest single bore diameters in one plane | ||||
| Vdmp | Bore diameter variation;difference between the largest and smallest mean bore diameter | ||||
| d1 | Nominal diameter at theroretical large end of a tapered bore | ||||
| d1mp | Diameter at theoretical large end of tapered bore;arithmetica mean of the largest and smallest single bore diameters | ||||
| △d1mp | Deviation of the mean bore diameter at the theoretical large end of a tapered bore from the nominal △dimp = d1mp - d1 |
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| Outside diameter | D | Nominal outside diameter | |||
| Ds | Single outside diameter | ||||
| Dmp | Outside diameter;arithmetical mean of the largest and smallest single outside diameters in one plane | ||||
| △Ds | Deviation of a single outside diameter from the nominal △Ds = Dmp - D |
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| △Dmp | Deviation of the mean outside diameter from the nominal △Dmp = Dmp - D |
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| VDp | Outside diameter variation;difference between the largest and smallest single outside diameters in one plane | ||||
| Vdmp | Outside diameter variation;difference between the largest and smallest mean outside diameters of one ring or washer | ||||
| Chamfer. Limits | rs | Single chamfer diension | |||
| rsmin | Smallest single chamfer diamension of rs,r1,r2,r3,r4 | ||||
| r1,r3 | Radial direction chamfer dimensions | ||||
| r2,r4 | Axial direction chamfer dimensions | ||||
| Width or height | B,C | Nominal width of inner ring and outer ring,respectively | |||
| Bs,Cs | Single width of inner ring and outer ring,respectively | ||||
| B1s,C1s | Single width of inner ring and outer ring,respectively,of a bearing specially manufactured for paired mounting | ||||
| △Bs,△Cs etc. | Deviation of single inner ring width or single outer ring width from the nominal △Bs = Bs - B,cs=Cs-C △B1s = B1s - B1,C1s = C1s - C1 |
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| VBs,VCs | Ring width variation;difference bwtween the largest and smallest single widths of inner ring and of outer ring,respectively | ||||
| T | 1.Nominal width(abutment width) of tapered roller bearings;Distance bwtween inner ring(cone) back face and outer ring(cup) back face 2.Nominal height(H) of single direction thrust bearing(Except spherical roller thrust bearing,see T4) |
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| T1 | 1.Nominal width of taper roller bearing,cone assembled with master cup 2.Nominal height(H1) of double direction thrust ball bearing with seating washer |
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| T2 | 1.Nominal width of tapered roller bearing,cup assembled with master cone 2.Nominal height(H) of double direction thrust bearing |
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| T3 | Nominal height(H1) of double direction thrust ball bearing with seating washers | ||||
| T4 | Nominal height(H) of spherical roller thrust bearing | ||||
| △Ts | 1. Deviation of effective width of tapered roller bearing from the nominal 2. Deviation of height of single direction thrust bearing from the nominal.(except spherical roller thrust bearing,see T4s) |
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| △T1s | 1.Deviation of effective single width of cone from the nominal 2.Deviation of height of single direction thrust ball bearing with seating washer from the nominal |
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| △T2s | 1.Deviation of effective single width of cup from the nominal 2.Deviation of height of double direction thrust bearing from the nominal |
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| △T3s | Deviation of height of double direction thrust ball bearing with seating washers from the nominal | ||||
| △T4s | Deviation of height of spherical roller thrust bearing from the nominal | ||||
| Running accuracy | Kia,Kea | Radial runout of inner ring and outer ring,respectively,of assembled bearing | |||
| Sd | Side face runout with reference to bore (of inner ring) | ||||
| SD | Outside inclination variation;variation in inclination of outside cylindrical surface to outer ring side face | ||||
| Sia,Sea | Axial runout of inner ring and outer ring,respectively,of assembled bearing | ||||
| Si,Se | Thickness variation,measured from middle of raceway to back(seating) face of shaft washer and of housing washer,respectively (Axial runout) | ||||
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蘇ICP - 06000995
