i want to make sure i am reading this correctly, it is 10 pieces, and EACH peice is 48 inches in length, so 480 in total? thanks

10 pieces, 48” each for total length of 480 inches

what is the width of each piece, not the length but the width? Not the package, but the width of each metal piece.

2020 stock is 20mm by 20mm. 2030 would be 20mm by 30mm. and so on. You need to be careful as this only gives you the gross external dimensions. The PROFILE may be different from one supplier to the another AND the purpose may be slightly different. For example, a "V" slot extrusion is specifically for a linear rail system. What you see here is specifically for a T slot hold dawn. In practice I've seen people use the different profiles interchangeably but performance may suffer.

Is it possible to bend these beams on the pipe bender so that the rollers can roll freely on them? A circle with a diameter of half a meter

It is unlikely you could bend it well. This is T5 meaning the hardened level. T6 is typically the maximum. The harness provides strength but makes bending difficult. With all the structure you may not get the channel fit that it has pre bend. If the bend radius is shallow enough you might be able to make it work. As a wild guess I would think it would be well under 10 degree bend. The anodizing also will not like being bent.

Manufacturer	IXGNIJ
Part number	6880
Item Weight	5.74 Kilograms
Product Dimensions	122 x 2 x 2 cm; 5.74 kg
Item model number	2020T
Size	10PCS 1220mm(48'')
Color	Silver
Style	2020
Finish	Smooth
Material	Aluminum
Shape	Rectangular
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

IXGNIJ 10pcs 48inch T Slot 2020 Aluminum Extrusion European Standard Anodized Linear Rail for 3D Printer Parts and CNC DIY 1220mm Silver(48inch)

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