25X12X52mm Woodworking Parts Cardan Universal Joint For Nanxing Automatic CNC Edgebander

Need the cardan joint for a Nanxing automatic edgebander? Play in a worn cardan joint shows up as feed that stutters, and stuttering feed bonds banding unevenly. This part is 25 x 12 x 52 mm: 25 mm outer diameter, 12 mm inner diameter, 52 mm length, metal body, catalogued as machine parts for Nanxing automatic edge banding machines. Two longer versions run on the same bore — φ25 x φ12 x 238 mm and φ25 x φ12 x 198 mm — and other sizes are made to order. Send the three numbers and the quantity for the price.

When an automatic edgebander starts feeding banding unevenly, the fault is often upstream of the glue pot: a cardan joint in the drive line has worn and the feed now stutters. The banding still advances, just not evenly, so the problem hides until panels come off with banding bonded across part of its width.

This is the replacement: a cardan joint in 25 x 12 x 52 mm — 25 mm outside diameter, 12 mm inside diameter, 52 mm long. A cardan joint is a cross-and-yoke coupling. It passes rotation from one shaft to the next and keeps passing it while the two shafts run at an angle, which a straight coupling cannot do.

The part is listed for the Nanxing automatic edgebander and sold as a woodworking machinery spare part, not a generic hardware item. The same 25 mm outside and 12 mm inside diameters also come in φ25 x φ12 x 238 mm and φ25 x φ12 x 198 mm, so one drive line can be rebuilt at whichever of the three lengths that machine uses.

The body is metal, the material the part is specified in. Sizes outside the listed three are made as custom spare parts. Price is on request from Shunhongyu. Measure the joint that came off the machine before ordering: 25, 12 and 52 are the whole fit specification.

What decides whether this joint fits, and keeps feeding:

• 25 mm outer diameter. The joint measures 25 mm across the outside, the figure to compare with the space it turns in.
• 12 mm inner diameter. A 12 mm bore at each end takes a 12 mm pin or shaft end.
• 52 mm overall length. End to end the part is 52 mm long, so the joint's length in the drive line is one number.
• Two longer lengths, same bore. φ25 x φ12 x 238 mm and φ25 x φ12 x 198 mm share the same 25 mm outer and 12 mm inner diameters.
• Metal body. The joint is specified in metal, the material that carries the rotation rather than covering it.
• Cross-and-yoke, not a rigid sleeve. A cardan joint carries rotation through an angle, where a solid coupling would bind.
• Listed for the Nanxing automatic edgebander. It is catalogued as machine parts for Nanxing automatic edge banding machines.
• A woodworking machinery spare part. The part type is listed as woodworking machinery spare parts, so it is ordered as a replacement for a machine in service.
• Custom spare parts. Anything outside the three listed lengths is produced to the customer's requirements, from a drawing or three measurements.

With a worn joint the choice is usually an imported assembly or a one-off that may not fit. What this part gives a buyer:

• Matched by size, not by serial number. 25 mm outer, 12 mm inner and 52 mm length identify it, so a replacement is ordered from three numbers off a caliper.
• Three lengths from one supplier. The 238 mm and 198 mm versions share the 25/12 mm diameters, so one order covers the joints this drive line uses.
• Fits the machine brand it is listed for. It is catalogued for the Nanxing automatic edgebander, so the bore and diameter already belong to that machine.
• Metal at the load path. The part is specified in metal because it is the piece that carries rotation between the two shafts.
• Steady feed, even banding. A joint with no free play keeps the feed at one rate, and one feed rate keeps banding bonded along the full panel edge.
• A change measured in one shift. A 52 mm joint on the shelf turns a stopped line into a swap the same shift.
• Non-standard is a normal request. Lengths between the three listed sizes are produced as custom spare parts to your requirements.
• One part, one price question. The quote needs only the size 25X12X52mm and the quantity, so pricing does not wait on a machine serial.

25 x 12 x 52 mm — 25 mm outer diameter, 12 mm inner diameter, 52 mm length. Those three numbers are the complete fit specification, so check them against the joint you are replacing.

Yes, the same part under two names. 'Cardan joint' and 'universal joint' both describe the cross-and-yoke coupling that carries rotation between two shafts working at an angle to each other.

The Nanxing automatic edgebander. The part is catalogued as machine parts for Nanxing automatic edge banding machines and sold as a woodworking machinery spare part.

Yes, two. φ25 x φ12 x 238 mm and φ25 x φ12 x 198 mm use the same 25 mm outer and 12 mm inner diameters, so measure the old joint before choosing between the three.

Metal. That is the material the part is specified in; the listing gives no alloy grade, so the fit is decided by the three dimensions rather than by material data.

Yes. Custom spare parts are produced to the customer's requirements, so a length or bore outside the three listed sizes is quoted from your drawing or from the measurements.

Price is on request. Send the size 25X12X52mm with the quantity you need and the quote follows from those two lines.

Check for free play at the joint first. A worn cardan joint lets the feed stutter, and stuttering feed bonds banding unevenly along the panel, so a joint with no play is not the cause.