8PM2515/990M Poly-Vee Belt Deep Groove Ball Bearings CE-63 (Full Ceramic) S 70 = Medium series

S 70 = Medium series bearing USO = Standard double row spindle bearing DB with steel balls / fibre cage 55 = 55mm bore A21 = 21 degree contact angle 0 = Tolerance class inner ring: more accurate than P2 or ABEC 9 I = Tolerance class outer ring: more accurate than P4 or ABEC 7 S = Heavy prelaod

Standard Type Crossed Roller Bearings

Bearing Number = B7017-E-2RSD-T-P4S-UL B = Standard steel balls 70 = Medium series 17 = 85mm bore diameter E = 25 degrees contact angle 2RSD = Sealed at both sides and lubricated T = Textile laminated phenolic resin outer ring guided P4S = FAG standard

1mm Max speed in grease = 12800 rpm Max speed in oil = 19500 rpm Fitting dimensions da min = 81mm Da max = 99mm Db max = 100mm ra max = 1mm rb max = 0

4 kN Contact angle = 15 degrees Factor fo = 15

8PM2515/990M Poly-Vee Belt Deep Groove Ball Bearings CE-63 (Full Ceramic) S 70 = Medium series8PM2515 990M Poly Vee Belt Manufacturer Product Code 8PM2515 990M Basic Product Description Poly Vee Belt Measurement Metric UOM Each Nominal Length Ln (mm) 2515 Rib Pitch (mm) 9. 4 Depth (mm) 12 Nominal Length Ln (in) 99 Weight (Kg) 2. 464 No. of Ribs 8 Rib Section PM 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.