PIVOT BEARINGS
MINIATURE AND INSTRUMENT BALL BEARINGS
TIMKEN MINIATURE AND THIN-SECTION BEARINGS CATALOG
69
PIVOT BEARINGS
TYPE PR AND A STANDARD SPECIFICATIONS
Material AISI 440C stainless-steel rings and balls. Lubrication Standard lubrication is dip and drain with Timken L01 lubricant. Other lubricants are available (see pages 28-30).
C S D r Y X SE W
TABLE 27. PIVOT BEARINGS
D W Chassis S SE X Y Pivot Angle C Radius
(1)
Ball Complement Load Ratings Approx. Weight Number Diameter Static Thrust r n d T
s
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbf N oz. g
TYPE PR
0.0590 0.0472 15PR 0.020 0.026 0.034 60 0.003 4
1/64
.2 0.0004 1.499 1.199 0.51 0.66 0.86 0.08 0.40 1 0.01 0.1181 0.0709 3PR 0.030 0.037 0.054 60 0.004 4
1/32
1 0.003 3.000 1.801 0.76 0.94 1.37 0.10 0.79 4 0.08 0.1575 0.0945 4PR 0.040 0.049 0.074 60 0.005 4
3/64
2 0.006 4.001 2.400 1.02 1.24 1.88 0.13 1.19 9 0.18 0.1968 0.1181 5PR 0.050 0.059 0.091 60 0.006 4
1/16
3.5 0.012 4.999 3.000 1.27 1.50 2.31 0.15 1.59 16 0.33 0.2953 0.1772 75PR 0.075 0.090 0.138 60 0.008 4
3/32
8 0.042 7.501 4.501 1.91 2.29 3.51 0.20 2.38 36 1.20 0.3937 0.2362 10PR 0.100 0.118 0.182 60 0.008 4
1/8
14 0.099 10.000 5.999 2.54 3.00 4.62 0.20 3.175 62 2.80
TYPE A
0.1250 0.0469 2A 0.042 0.032 0.001 0.034 60 0.003 6
1/32
2 0.002 3.175 1.191 1.07 0.81 0.03 0.86 0.08 0.79 9 0.06 0.1875 0.0700 3A 0.062 0.048 0.003 0.051 60 0.005 6
3/64
4 0.010 4.763 1.778 1.57 1.22 0.08 1.30 0.13 1.19 18 0.28 0.2500 0.0937 4A 0.085 0.065 0.002 0.066 60 0.008 6
1/16
7 0.014 6.350 2.380 2.16 1.65 0.05 1.68 0.20 1.59 31 0.40 0.3750 0.1406 6A 0.124 0.094 0.006 0.098 60 0.010 6
3/32
16 0.050 9.525 3.571 3.15 2.39 0.15 2.49 0.25 2.38 71 1.42 0.3750 0.1406 6A7B 0.150 0.125 0.014 0.104 60 0.010 7
3/32
20 0.046 9.525 3.571 3.81 3.18 0.36 2.64 0.25 2.38 89 1.30
(1)
The maximum radius of shaft or housing fillet that bearing corner will clear.
Type PR Type A
W D r C Y X S
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