20PJ1992/784J Poly-Vee Belt Self-Aligning Ball Bearings 23 Bearing Number = 7912CTRDUMP3 7

Bearing Number = 7912CTRDUMP3 7 = Angular contact series bearing 9 = Dimension series 12 = 60mm bore diameter C = 15 Degree contact angle TR = Phenolic cage outer ring guided DU = Set of 2 for universal arrangement M = Medium preload P3 = Special class (dimensional accuracy ISO Class 4

0018"– 0" Outer Dia 17

Product Attributes Manufacturer Product Code 1344-14M-85-HP Basic Product Description Timing Belt HTD Measurement Metric UOM Each Nominal Length Ln (mm) 1344 Tooth Pitch (mm) 14 Width (mm) 85 Weight (Kg) 1

offers the best possible ceramic bearing for each application

d = 65mm D = 100mm B = 18mm Dynamic load Co = 28600 N Static load C = 32500 N Speed in Grease = 11000 rpm Speed in Oil = 17500 rpm ra = 1mm da = 72mm Da = 93mm Axial Preload Fv L = 250 N Axial Preload Fv M = 760 N Axial Preload Fv S = 1540 N Axial Rigidity Ra L = 115 N/μm Axial Rigidity Ra M = 170 N/μm Axial Rigidity Ra S = 205 N/μm Radial Rigidity Rr L = 455 N/μm Radial Rigidity R r M = 660 N/μm Radial Rigidity r S = 830 N/μm Weight = 0

20PJ1992/784J Poly-Vee Belt Self-Aligning Ball Bearings 23 Bearing Number = 7912CTRDUMP3 720PJ1992 784J Poly Vee Belt Manufacturer Product Code 20PJ1992 784J Basic Product Description Poly Vee Belt Measurement Metric UOM Each Nominal Length Ln (mm) 1992 Rib Pitch (mm) 2. 34 Depth (mm) 3. 3 Nominal Length Ln (in) 78. 4 Weight (Kg) 0. 398 No. of Ribs 20 Rib Section PJ Material Rubber Technical Improved transmission ratio is possible (Poly V 1 : 60 vs V belt 1 : 20). Does away with the need for stepped pulleys.