A nice photo of all of the gears meshing. The sun and ring gears are pulled back slightly for the view.

A side view of the sun gear and planet gears meshing. The sun gear is slightly pulled back here.

Both shafts, a ring gear, a welded sun gear assembly with large bearing, full planet loads.

This is a slightly closer view of the shafts with a full load of planet gears on them. One has sun and ring gears too.

Close up of a shaft with a full load of planet gears. The grooves in the foreground are snapring grooves.

Close up of a welded sun gear assembly. The welds were done by David Hyde, one of the NPL instrument makers.

Left and right hub halves with a ring gear. This is the inside view of the hub halves. Left hub half is part 1 drawing 4 and actually is the left hub half. Right hub half is part 2 drawing 4 and actually is the right hub half.

Left and right hub halves with a ring gear. This is the outside view of the hub halves. Left hub half is part 1 drawing 4 and actually is the left hub half. Right hub half is part 2 drawing 4 and actually is the right hub half.

Hub halves stacked on ring gear. Side view. Top hub half is the right half, part 2 drawing 4. Bottom hub half is the left half, part 1 drawing 4.

Hub halves stacked on ring gear, inner or top view. Top hub half is the right half, part 2 drawing 4. Bottom hub half is the left half, part 1 drawing 4.