Adopting a journal bearing form, the surface of the tooth palm bearing is welded with a hard alloy layer, and the tooth wheel bearing is silver plated, providing load-bearing capacity and anti bite ability. Choosing a suitable sealing structure based on different usage conditions can make metal sealed bearings suitable for higher speeds.
Alloy teeth are covered on the back of the dental palm, and high exposed ball head teeth are used near the oil storage hole to significantly improve the working condition of the drilling tool during horizontal drilling and effectively protect the dental palm and oil storage hole.
The optimized design of the number of tooth rows, tooth numbers, and exposed height of wedge-shaped or conical spherical teeth fully utilizes the cutting ability and cutting speed of the drill bit.
Drill Bit Size | Drill Bit Type | |
in | mm | |
8 1/2 | 130 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
9 7/8 | 150 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
12 1/4 | 180 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
13 3/4 | 205 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
17 1/2 | 260 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
20 | 300 | XME127GL 、 XME537GL 、 XME617GL 、 XME637GL 、 XMEJ537GL 、 XMEJ617GL 、 XMEJ637GL |
Note: The size and model of drill bits not shown in the table are designed according to user needs.