Ball Bearings Catalog - Timken

ER INDUSTRIAL SERIES RELUBRICATABLE TyPE
• Designed for use in applications where low starting torque and low
running torque are necessary.
• ER-DD Series is for applications where extremely low-torque is
required.
• Test results indicate an average of 95 percent reductions in start-up
torque when using ER-DD over the standard ER bearing. Running
torque is reduced up to 85 - 90 percent.
Suggested shaft tolerances: 1 /2” - 1 15 /16”, nominal to -.013 mm, -.0005”;
2” - 2 15 /16”, nominal to -.025 mm, -.0010”.
Wide Inner Ring
Bearing Basic Bore (1) O.D. Ring S S1 F J D1 y T M x Setscrew Bearing Cross
Number Outer d D Widths ref ref Size Wt. Reference
Ring Number (2)
B C
Inner Outer
mm mm mm mm mm mm mm mm mm mm mm mm mm kg
in. in. in. in. in. in. in. in. in. in. in. in. in. in. lbs.
ER08* 1 /2 0.190 0.42
ER10* 204 5 /8 47 30.96 15.88 12.7 18.26 28.17 5.16 52.4 16.61 1.2 3.97 14.35 M5X.8 0.167 0.37 SM1012K
ER12* 3 /4 1.8504 1 7 /32 5 /8 1 /2 23 /32 1 7 /64 13 /64 2 1 /16 21 /32 3 /64 5 /32 9 /16 10 - 32 0.141 0.31
ER14* 7 /8 0.218 0.48
ER15 205 15 /16 52 34.13 19.05 14.29 19.84 33.73 6.35 57.5 16.61 1.2 3.57 17.50 M6X1 0.195 0.43 SM1013K
ER16* 1 2.0472 1 11 /32 3 /4 9 /16 25 /32 1 21 /64 1 /4 2 17 /64 21 /32 3 /64 9 /64 11 /16 1 /4 - 28 0.181 0.40
ER18 206 1 1 /8 62 38.1 22.23 15.87 22.22 40.48 7.54 67.5 17.93 1.6 5.56 20.17 M6X1 0.340 0.75 SM1101K
ER19 1 3 /16 2.4409 1 1 /2 7 /8 5 /8 7 /8 1 19 /32 19 /64 2 21 /32 45 /64 1 /16 7 /32 51 /64 1 /4 - 28 0.313 0.69
ER20* 1 1 /4 0.567 1.25
ER22* 207 1 3 /8 72 42.86 23.81 17.46 25.4 46.83 7.94 78.2 19.76 1.6 5.56 23.11 M8X1.25 0.499 1.10 SM1104K
ER23* 1 7 /16 2.8346 1 11 /16 15 /16 11 /16 1 1 27 /32 5 /16 3 5 /64 25 /32 1 /16 7 /32 29 /32 5 /16 - 24 0.476 1.05
ER24* 208 1 1 /2 80 49.21 27.78 19.05 30.16 52.38 7.94 86.5 21.16 1.6 6.35 28.07 M8X1.25 0.671 1.48 SM1108K
3.1496 1 15 /16 1 3 /32 3 /4 1 3 /16 2 1 /16 5 /16 3 13 /32 53 /64 1 /16 1 /4 1 7 /64 5 /16 - 24
ER27 209 1 11 /16 85 49.21 27.78 19.05 30.16 57.94 7.94 91.3 21.16 1.6 6.35 28.07 M8X1.25 0.735 1.62 SM1110K
ER28* 1 3 /4 3.3465 1 15 /16 1 3 /32 3 /4 1 3 /16 2 9 /64 5 /16 3 19 /32 53 /64 1 /16 1 /4 1 7 /64 5 /16 - 24 0.690 1.52
ER30 210 1 7 /8 90 51.59 28.58 19.05 32.54 55.66 9.92 96.4 24.66 2.4 7.14 27.31 M10X1.5 0.853 1.88 SM1113K
ER31 1 15 /16 3.5433 2 1 /32 1 1 /8 3 /4 1 9 /32 2 7 /16 25 /64 3 51 /64 31 /32 3 /32 9 /32 1 5 /64 3 /8 - 24 0.834 1.84
ER32* 211 2 100 55.56 30.16 22.22 33.34 69.85 9.92 106.4 24.28 2.4 7.14 31.27 M10X1.5 1.300 2.87 SM1200K
ER35 2 3/16 3.9370 2 3/16 1 3/16 7/8 1 5/16 2 3/4 25/64 4 3/16 61/64 3/32 9/32 1 15/64 3/8 - 24 1.084 2.39
ER39* 212 2 7/16 110 65.09 31.75 25.4 39.69 76.60 9.92 116.3 28.24 2.4 6.75 36.83 M10X1.5 1.450 3.20 SM1204K
4.3307 2 9/16 1 1/4 1 1 9/16 3 1/64 25/64 4 37/64 1 7/64 3/32 1 7/64 1 29/64 3/8 - 24
ER47 215 2 5/16 130 77.79 38.1 33.33 44.45 91.68 11.91 139.7 33.02 2.8 6.35 44.78 M12X1.75 2.210 4.88 SM1213K
5.1180 3 1/16 1 1/2 1 5/16 1 3/4 3 39/64 15/32 5 1/2 1 19/64 7/64 1/4 1 49/64 7/16 - 20
ER51 216 3 3/16 140 77.79 42.86 28.58 49.21 98.43 13.49 149.6 35.32 2.8 11.11 42.47 M12X1.75 3.450 7.61 SM1303K
5.5110 3 1/16 1 11/16 1 1/8 1 15/16 3 7/8 17/32 5 57/64 1 25/64 7/64 7/16 1 43/64 7/16 - 20
ER55 217 3 7/16 150 85.72 49.21 34.16 51.57 104.84 11.91 159.5 34.53 2.8 11.02 51.21 M12X1.75 — — SM1307K
5.9051 3 3/8 1 15/16 1 11/32 2 1/32 4 1/8 7/16 6 1/4 1 23/64 7/64 7/16 2 1/64 7/16 - 20
(1) Bore tolerance: 1/2” - 2 3/16”, nominal to .013 mm, +.0005”.
2 1/4” - 2 15/16”, nominal to .015 mm, +.0006”.
(2) Use cross reference bearing numbers to locate Load Ratings on page D70.
*ER-DD low drag/low-torque version available.
ER Industrial Series
D
d
M
X
C
S S 1
B
T
Y
J
TIMKEN PRODUCTS CATALOG D69
F
D1
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AD
A