Precision Combination Bearings

Precision Combination Bearings

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Part Number d (mm) T (mm) D (mm) H (mm) h min-max (mm) B (mm) A (mm) S (mm) r (mm) C (kN) Co (kN) Ca (kN) Coa (kN) Reference Drawing Profile Type
PR4.054 30 42 64.8 37.5 30.5 20 2.5 20 3 31 35.5 11 11 1 ECC065
PR4.454 30 42 64.8 37.5 30.5-32 20 4 20 3 31 35.5 11 11 2 ECC065
PR4.055 35 48 73.8 44 36 23 4 20 4 45.5 51 13 14 1 ECC074
PR4.455 35 48 73.8 44 36-37.5 23 4 20 4 45.5 51 13 14 2 ECC074
PR4.056* 40 54 81.8 48 37 23 3.5 26 4 48 56.8 18 18 1 ECC082
PR4.456 40 54 81.8 48 37-38.5 23 3.5 26 4 48 56.8 18 18 2 ECC082
PR4.058* 45 59 92.8 57 44 30 4 26 4 68 72 23 23 1 ECC093
PR4.458 45 59 92.8 57 44-44.5 30 4 26 4 68 72 23 23 2 ECC093
PR4.061* 60 69 111.8 69 55 31 4 30 5 81 95 25 27 1 ECC112
PR4.461 60 69 111.8 69 55-57 31 4 30 5 81 95 25 27 2 ECC112
PR4.062* 60 80 127.8 72.3 56 37 4.5 34 5 110 132 31 36 1 ECC128
PR4.462 60 80 127.8 72.3 56-60 37 4.5 34 5 110 132 31 36 2 ECC128
PR4.063* 60 108 153.8 78.5 58.5 45 6 34 3 151 192 31 36 1 ECC154
PR4.463 60 108 153.8 78.5 58.5-62.5 45 6 34 3 151 192 31 36 2 ECC154
*PR4056, PR4058, PR4061, PR 4062 and PR4063 are regreasable through a grease fitting on the welding spigot.

Symbol Definition
C Dynamic Load
Co Static Load
Ca Axial Dynamic Load
Coa Axial Static Load
Note: Bearings have much higher load ratings than corresponding guide rail profiles. Always make selections based on Hertzian pressure calculations of the rails.