YDTech® manufacturer of high super ultra thin stainless steel SS440C SS420C SS304 needle roller bearing pins for electric toothbrushes, medical equipment; supplier of stainless steel SS440C SS420C SS304 short cylindrical rollers for (cages,fishing gear, one-way, wheel) bearings in china.

standard sizes: 1series super short cylindrical rollers: D0.3*L3.5, D0.7*L3.8, D1*L0.5, D1.47*L4.8, D1*L0.90, D1.5*1.40, D1.5*1.43, D1.5*1.45, D1.5*1.5,D1.6*3.2 ;

2series thin rollers:2*L4.3, D2*L4.8, D2.3*L4.6, D2.3*L4.8, D2.5*L4, D2.5*L4.5, D2.5*L4.8, D2.5*L5, D2.5*L5.2, D2.5*L5.8, D2.5*L6.8, D2*1.90, D2*1.93, D2*1.95, D2*2, D2*1.50, D2.05*1.98;

3series short bearing pins: D3*L4.7, D3.6*L6.5, D3*2.85, D3*2.90, D*2.93, D3*2.95, D3*3, D3*1.9;

4series thin needle rollers: D4*3.85, D4*3.90, D4*3.93, D4*3.95, D4*4, D4*2.7;

5series miniature thin shafts : D5*4.8, D5*5, D5*5.5, D5*6, D5.5*6;

P6series crossed rollers: D6*5.8, D6*5.9, D6*5.93, D*5.95, D6*6, D*4.1;

material: SS440C SS420C SS304 hardness: HRC52~58 diameter tolerance: 0.005mm, 0.003mm, 0.002mm, 0.001mm, 0.0005mm length tolerance:+/-0.05,+/-0.03, +0/-0.015,+/-0.01, +0/-0.005 chamfer:R0.03-R0.3mm or customize parallelism:0.01mm, 0.005mm. perpendicularity:0.01mm, 0.005mm. face runout:0.01mm, 0.005mm. circularity:0.001mm, 0.0005mm cylindricity:0.001mm, 0.0005mm roughness:Ra0.08um, Ra0.04um.

application: cross roller linear guides, cross rail cage, cross roller bearings, projector rails, grinder rails, roller linear guides, wire cutting guides, bearing type linear guides, linear guides.

optical machine, CNC machine, surface grinding machine, precision machines, robots, microscope, precision table, computer embroidery machinee, electronic pattern machinee, automatic production line, linear modulee, linear unit, precision cylinders, pneumatic fingers,

we are professional manufacture of bearing rollers and cylindrical needle rollers. we produce rollers of diameter 0.5 mm to 60 mm. the rollers could satisfy the request of DIN 5402 G2 rollers.