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Table 27:
Ball bearings Special sizes
Part I
Uni Type d D Bi Be W Load ratings
tNumber nominal Tol.+0 nominal Tol.+0 nominal Tol.+0 nominal Tol.+0 nominal Tol.+0 r Dynamic Static
to minus to minus to minus to minus to minus
In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm Lbf/N Lbf/N
203KRR2 1 0.64 0.005 1.5748 0.0005 0.72 0.005 0.472 0.005 0.962 0.0008 0.024 2450 1060
16.26 0.127 40 0.013 18.288 0.127 12 0.127 24.435 0.02 0.61 10900 4700
203KRR5 1 0.515 0.005 1.5748 0.0005 0.72 0.005 0.472 0.005 0.962 0.0008 0.024 2450 1060
13.081 0.127 40 0.013 18.288 0.127 12 0.127 24.435 0.02 0.61 10900 4700

 

Table 28:
Ball bearings Special sizes
Part II
Farm radial Bore O.D. Outer Ring Inner Ring Description of special features
specials Width Width
In. mm In. mm In. mm In. mm
202NPP9 0.505 15000 0.4331 0.4331 O.D.turned to 3/4 radius.Trash seals.
12.827 38.1 11 11
202RRE 0.5906 1.378 0.4331 0.88 Special bore,extended inner ring.
15 35 11 22.352 Trash seals.
203JD 0.6693 1.5748 0.4724 0.5512 Inner ring extended one side.
17 40 12 14 Trash seals.
Z9504RST 0.75 1.7805 0.61 0.61 Basic 6204-2RS with 3/4 bore and 0.6100 width.
19.05 45.225 15.494 15.494 Trash seals.
Z9504AB 0.75 1.7805 0.61 0.61 Basic 6204-2RS with 3/4 bore and 0.6100 width.
19.05 45.225 15.494 15.494 Rubber seals.
204KRD4 0.63 1.8504 0.5512 0.689 Special bore.Trash seals.
16 47 14 17.5
204RY2 0.631 1.7805 0.61 0.735 Gothic arch race.Double lip trash seal ectended side,
16.027 45.225 15.494 18.669 single lip trash seal opposite.
205E-2RST 0.756 2.0472 0.5906 0.831 Special bore,extended inner ring.
19.202 52 15 21.107 Trash seals
205KR3 0.751 2.0472 0.7 0.64 Special shroud seal one side only.
19.075 52 17.78 16.256
205PPB7 0.9375 2.0472 0.591 1.378 Bevelled O.D.Triple lip seals.
23.813 52 15 35
204-FREN 0.631 1.7805 0.735 Special 204 with Wide I.R., double Sealed.
205R3 0.625 52 15 35 Ttiple seals
203KRR3 0.625 2 0.6 0.6 Two shields
205RTRAN 0.75 52 15 0.828 Two shields extended on one side w/snapring groove