WD Bearing Group - Standard Combined Roller Bearings

Unit of Measure

Items	WD053/52.5-2RS	WD054/62.5-ZRS	WD055/70.1-ZRS	WD056/77.7-ZRS	WD057/77.7-ZRS
Bore Diameter	N/A 30 mm	N/A 30 mm	N/A 35 mm	N/A 40 mm	N/A 40 mm
Outside Diameter	N/A 52.5 mm	N/A 62.5 mm	N/A 70.1 mm	N/A 77.7 mm	N/A 77.7 mm
Dimension C	N/A 17 mm	N/A 20 mm	N/A 23 mm	N/A 23 mm	N/A 23 mm
Dimension H	N/A 33 mm	N/A 37.5 mm	N/A 44 mm	N/A 48 mm	N/A 40.7 mm
Dimension H1	N/A 27 mm	N/A 30.5 mm	N/A 36 mm	N/A 36.5 mm	N/A 29 mm
Dimension H2	N/A 6 mm	N/A 7 mm	N/A 8 mm	N/A 11.5 mm	N/A 11.7 mm
Outside Diameter	N/A	N/A 50 mm	N/A 57 mm	N/A 61 mm	N/A 61 mm
Dimension C1	N/A 15 mm	N/A 20 mm	N/A 22 mm	N/A 26 mm	N/A 26 mm
Dimension d1	N/A 40 mm	N/A 42 mm	N/A 48 mm	N/A 53 mm	N/A 53 mm
Dimension S	N/A 2 mm	N/A 2.5 mm	N/A 2.5 mm	N/A 3 mm	N/A 3 mm
Angle	N/A	N/A 20 º	N/A 20 º	N/A 20 º	N/A 20 º
Dimension r	N/A 2 mm	N/A 3 mm	N/A 4.5 mm	N/A 4.5 mm	N/A 4.5 mm
Dimension R	N/A 500 mm	N/A 500 mm	N/A 500 mm	N/A 700 mm	N/A 700 mm
Dimension R1	N/A 500 mm	N/A 500 mm	N/A 500 mm	N/A 700 mm	N/A 700 mm
Dimension V	N/A	N/A M6X1 mm	N/A M6X1 mm	N/A M6X1 mm	N/A M6X1 mm
Basic (C) Load Rating	N/A 24 kN	N/A 31 kN	N/A 45.5 kN	N/A 48 kN	N/A 48 kN
Basic (Co) Load Rating	N/A 32 kN	N/A 35.5 kN	N/A 51 kN	N/A 56.8 kN	N/A 56.8 kN
Dynamic (Ca) Basic Load Rating	N/A 7 kN	N/A 11 kN	N/A 13 kN	N/A 18 kN	N/A 18 kN
Static (Coa) Basic Load Rating	N/A 7 kN	N/A 11 kN	N/A 14 kN	N/A 18 kN	N/A 18 kN
Optional Outer Diameter	N/A	N/A 62 mm64.8 mm	N/A 70.7 mm73.8 mm	N/A 78.1 mm81.8 mm	N/A 78.1 mm78.3 mm
Reference Code - Germany	N/A 4.053	N/A 4.054	N/A 4.055	N/A 4.056	N/A 4.057
Reference Code - Italy A	N/A	N/A 4.0054-62.5	N/A 4.0055-70.1	N/A 4.0056-77.7	N/A 4.0057-77.7
Reference Code - Italy B	N/A	N/A MR.001	N/A MR.002	N/A MR.003	N/A MR.004