It is very difficult to grind tapered bore in a large diameter gear without dedicated equipment.
由于没有专用设备，大直径齿轮锥孔磨削非常困难。
The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a tapered bore (taper 1:12).
自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。
The latest extension to the sealed spherical roller bearing range includes 11 new variants, with both cylindrical and tapered bore versions available, depending on specific application requirements.
最新的扩展，密封球面滚子轴承范围包括11个新变种，与圆柱和圆锥孔版本，这取决于特定的应用需求。
B1101 Bach USA - Key of F, . 468" bore, tapered rotors and bearings, clear lacquer, Bach 336-11 mouthpiece, 7514C deluxe hardshell case. Optional Eb tuning slide available".
B1101 吧哈美国-F键，.468“内腔，锥形转片和轴承，透明亮漆，吧哈336-11吹口，7514C豪华硬箱子，选配降E可调音调滑块。
B1101 Bach USA - Key of F, . 468" bore, tapered rotors and bearings, clear lacquer, Bach 336-11 mouthpiece, 7514C deluxe hardshell case. Optional Eb tuning slide available".
B1101 吧哈美国-F键，.468“内腔，锥形转片和轴承，透明亮漆，吧哈336-11吹口，7514C豪华硬箱子，选配降E可调音调滑块。
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