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Retaining rings
Axially mounting

2101-5101
Retaining rings for shafts - bowed

Retaining rings 2101-5101 are safety elements for shafts in inch dimensions. Their geometric shape is similar to 2100-5100 but the ring is bowed. This feature provides the ring with more elasticity in order to compensate small axial plays.
They can be produced and supplied only upon customer's request.

Assembly instructions

Scheda prodotto - 2101-5101
SIZE RING DIMENSIONS GROOVE DIMENSIONS SUPPLEMENTARY DATA WEIGHT PLIERS
 
no.
 
d1
 
 d1 fraz 
 
S
 
tol
 
d3
 
tol
 
a
 
tol
 
b
 
tol
 
c
 
tol
 
L
 
tol
 
d5
 
tol
 
d2
 
tol
 
m
 
tol
 
n
 
FN
 
FR
 
g
 
FRg
 
nabl
Y
min
Y
max
Y min
-
Y max
FL
max
Lbr
 
lbs/1000
 
straight
 
bent
25 ,250   1/4 ,025 ,002 -,002 ,225 ,002 -,004 ,080 ,003 -,003 ,035 ,003 -,003 ,025 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,230 ,002 -,002 ,040 ,003 ,000 ,030 175 599 ,011 470 80.000 ,030 ,038 ,008 50 ,211 A0 A01
27 ,276 - ,025 ,002 -,002 ,250 ,002 -,005 ,081 ,003 -,003 ,035 ,003 -,003 ,024 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,255 ,002 -,002 ,040 ,003 ,000 ,031 195 660 ,011 470 76.000 ,030 ,038 ,008 50 ,220 A0 A01
28 ,281   9/32 ,025 ,002 -,002 ,256 ,002 -,005 ,080 ,003 -,003 ,038 ,003 -,003 ,025 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,261 ,002 -,002 ,040 ,003 ,000 ,030 200 670 ,012 470 74.000 ,030 ,038 ,008 50 ,264 A0 A01
31 ,312   5/16 ,025 ,002 -,002 ,281 ,002 -,005 ,087 ,003 -,003 ,040 ,003 -,003 ,026 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,290 ,002 -,002 ,040 ,003 ,000 ,033 240 751 ,012 470 70.000 ,030 ,038 ,008 50 ,284 A0 A01
34 ,344  11/32 ,025 ,002 -,002 ,309 ,002 -,005 ,087 ,003 -,003 ,042 ,003 -,003 ,027 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,321 ,002 -,002 ,040 ,003 ,000 ,033 265 812 ,013 470 64.000 ,030 ,038 ,008 45 ,308 A0 A01
35 ,354 - ,025 ,002 -,002 ,320 ,002 -,005 ,087 ,003 -,003 ,046 ,003 -,003 ,029 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,330 ,002 -,002 ,040 ,003 ,000 ,036 300 832 ,014 470 62.000 ,030 ,038 ,008 45 ,352 A0 A01
37 ,375   3/8 ,025 ,002 -,002 ,338 ,002 -,005 ,088 ,003 -,003 ,050 ,003 -,003 ,031 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,352 ,002 -,002 ,040 ,003 ,000 ,036 320 883 ,016 470 60.000 ,030 ,038 ,008 45 ,372 A0 A01
39 ,394 - ,025 ,002 -,002 ,354 ,002 -,005 ,087 ,003 -,003 ,052 ,003 -,003 ,031 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,369 ,002 -,002 ,040 ,003 ,000 ,037 335 954 ,016 470 56.500 ,030 ,038 ,008 40 ,396 A0 A01
40 ,406  13/32 ,025 ,002 -,002 ,366 ,002 -,005 ,087 ,003 -,003 ,054 ,003 -,003 ,033 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,382 ,002 -,002 ,040 ,003 ,000 ,036 350 964 ,017 470 55.000 ,030 ,038 ,008 40 ,418 A0 A01
43 ,438   7/16 ,025 ,002 -,002 ,395 ,002 -,005 ,088 ,003 -,003 ,055 ,003 -,003 ,033 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,412 ,002 -,002 ,040 ,003 ,000 ,039 400 1.035 ,018 470 50.000 ,030 ,038 ,008 35 ,453 A0 A01
46 ,469  15/32 ,025 ,002 -,002 ,428 ,002 -,005 ,088 ,003 -,003 ,060 ,003 -,003 ,035 ,003 -,003 ,047 ,006 -,006 ,041 ,010 -,002 ,443 ,002 -,002 ,040 ,003 ,000 ,039 450 1.117 ,018 470 42.000 ,030 ,038 ,008 35 ,572 A0 A01
50 ,500   1/2 ,035 ,002 -,002 ,461 ,002 -,005 ,108 ,003 -,003 ,065 ,004 -,004 ,040 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,468 ,002 -,002 ,055 ,003 ,000 ,048 550 1.675 ,020 910 40.000 ,042 ,053 ,011 90 ,902 A0 A01
55 ,551 - ,035 ,002 -,002 ,509 ,005 -,010 ,108 ,003 -,003 ,053 ,004 -,004 ,036 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,519 ,002 -,002 ,055 ,003 ,000 ,048 600 1.800 ,017 910 36.000 ,042 ,053 ,011 85 ,814 A0 A01
56 ,562   9/16 ,035 ,002 -,002 ,521 ,005 -,010 ,108 ,003 -,003 ,072 ,004 -,004 ,041 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,530 ,002 -,002 ,055 ,003 ,000 ,048 650 1.878 ,023 910 35.000 ,042 ,053 ,011 80 1,100 A0 A01
59 ,594  19/32 ,035 ,002 -,002 ,550 ,005 -,010 ,109 ,003 -,003 ,076 ,004 -,004 ,043 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,559 ,003 -,003 ,055 ,003 ,000 ,052 750 1.979 ,024 910 32.000 ,042 ,053 ,011 70 1,188 A0 A01
62 ,625   5/8 ,035 ,002 -,002 ,579 ,005 -,010 ,110 ,003 -,003 ,080 ,004 -,004 ,045 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,588 ,003 -,003 ,055 ,003 ,000 ,055 800 2.091 ,025 910 30.000 ,042 ,053 ,011 60 1,311 A0 A01
66 ,669 - ,035 ,002 -,002 ,621 ,005 -,010 ,110 ,003 -,003 ,082 ,004 -,004 ,043 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,629 ,003 -,003 ,055 ,003 ,000 ,060 950 2.233 ,024 910 29.000 ,042 ,053 ,011 50 1,408 A0 A01
66 ,672  43/64 ,035 ,002 -,002 ,621 ,005 -,010 ,110 ,003 -,003 ,082 ,004 -,004 ,043 ,004 -,004 ,063 ,007 -,007 ,047 ,010 -,002 ,631 ,003 -,003 ,055 ,003 ,000 ,060 950 2.233 ,024 910 29.000 ,042 ,053 ,011 50 1,408 A0 A01
68 ,688  11/16 ,042 ,002 -,002 ,635 ,005 -,010 ,136 ,004 -,004 ,084 ,005 -,005 ,048 ,005 -,005 ,073 ,008 -,008 ,052 ,010 -,002 ,646 ,003 -,003 ,062 ,003 ,000 ,063 1.000 3.451 ,025 1.340 28.000 ,049 ,060 ,011 70 1,760 A0 A01
75 ,750   3/4 ,042 ,002 -,002 ,693 ,005 -,010 ,136 ,004 -,004 ,092 ,005 -,005 ,051 ,005 -,005 ,073 ,008 -,008 ,052 ,010 -,002 ,704 ,003 -,003 ,062 ,003 ,000 ,069 1.200 3.756 ,028 1.340 26.500 ,049 ,060 ,011 65 2,112 A0 A01
78 ,781  25/32 ,042 ,002 -,002 ,722 ,005 -,010 ,136 ,004 -,004 ,094 ,005 -,005 ,052 ,005 -,005 ,073 ,008 -,008 ,052 ,010 -,002 ,733 ,003 -,003 ,062 ,003 ,000 ,072 1.300 3.959 ,028 1.340 25.500 ,049 ,060 ,011 60 2,156 A0 A01
81 ,812  13/16 ,042 ,002 -,002 ,751 ,005 -,010 ,136 ,004 -,004 ,096 ,005 -,005 ,054 ,005 -,005 ,073 ,008 -,008 ,052 ,010 -,002 ,762 ,003 -,003 ,062 ,003 ,000 ,075 1.450 4.060 ,028 1.340 24.500 ,049 ,060 ,011 55 2,354 A0 A01
87 ,875   7/8 ,042 ,002 -,002 ,810 ,005 -,010 ,137 ,004 -,004 ,104 ,005 -,005 ,057 ,005 -,005 ,073 ,008 -,008 ,052 ,010 -,002 ,821 ,003 -,003 ,062 ,003 ,000 ,081 1.650 4.365 ,031 1.340 23.000 ,049 ,060 ,011 45 2,772 A0 A01
93 ,938  15/16 ,042 ,002 -,002 ,867 ,005 -,010 ,166 ,004 -,004 ,110 ,005 -,005 ,063 ,005 -,005 ,073 ,008 -,008 ,078 ,015 -,002 ,882 ,003 -,003 ,062 ,003 ,000 ,084 1.850 4.720 ,033 1.340 21.500 ,049 ,060 ,011 40 3,168 A1 A11
98 ,984  63/64 ,042 ,002 -,002 ,910 ,005 -,010 ,167 ,004 -,004 ,114 ,005 -,005 ,064 ,005 -,005 ,073 ,008 -,008 ,078 ,015 -,002 ,926 ,003 -,003 ,062 ,003 ,000 ,087 2.000 4.923 ,034 1.340 20.500 ,049 ,060 ,011 40 3,388 A1 A11
100 1,000     1      ,042 ,002 -,002 ,925 ,005 -,010 ,167 ,004 -,004 ,116 ,005 -,005 ,065 ,005 -,005 ,073 ,008 -,008 ,078 ,015 -,002 ,940 ,003 -,003 ,062 ,003 ,000 ,090 2.100 5.024 ,034 1.340 20.000 ,049 ,060 ,011 35 3,483 A1 A11
102 1,023 - ,042 ,002 -,002 ,946 ,005 -,010 ,168 ,004 -,004 ,118 ,005 -,005 ,066 ,005 -,005 ,073 ,008 -,008 ,078 ,015 -,002 ,961 ,003 -,003 ,062 ,003 ,000 ,093 2.250 5.126 ,035 1.340 19.500 ,049 ,060 ,011 35 3,740 A1 A11
106 1,062 1  1/16 ,050 ,002 -,002 ,982 ,010 -,015 ,181 ,004 -,004 ,122 ,006 -,006 ,069 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 ,998 ,004 -,004 ,070 ,003 ,000 ,096 2.400 6.293 ,036 1.950 19.000 ,057 ,068 ,011 60 4,884 A1 A11
112 1,125 1  1/8 ,050 ,002 -,002 1,041 ,010 -,015 ,182 ,004 -,004 ,128 ,006 -,006 ,071 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,059 ,004 -,004 ,070 ,003 ,000 ,099 2.600 6.699 ,038 1.950 18.800 ,057 ,068 ,011 55 6,138 A2 A21
118 1,188 1  3/16 ,050 ,002 -,002 1,098 ,010 -,015 ,182 ,004 -,004 ,132 ,006 -,006 ,072 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,118 ,004 -,004 ,070 ,003 ,000 ,105 2.950 7.105 ,039 1.950 18.000 ,057 ,068 ,011 50 7,344 A2 A21
125 1,250 1  1/4 ,050 ,002 -,002 1,156 ,010 -,015 ,183 ,004 -,004 ,140 ,006 -,006 ,076 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,176 ,004 -,004 ,070 ,003 ,000 ,111 3.250 7.460 ,041 1.950 17.000 ,057 ,068 ,011 45 7,834 A2 A21
131 1,312 1  5/16 ,050 ,002 -,002 1,214 ,010 -,015 ,183 ,004 -,004 ,146 ,006 -,006 ,076 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,232 ,004 -,004 ,070 ,003 ,000 ,120 3.700 7.866 ,041 1.950 16.500 ,057 ,068 ,011 40 7,546 A2 A21
137 1,375 1  3/8 ,050 ,002 -,002 1,272 ,010 -,015 ,184 ,004 -,004 ,152 ,006 -,006 ,082 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,291 ,004 -,004 ,070 ,003 ,000 ,126 4.100 8.222 ,043 1.950 16.000 ,057 ,068 ,011 35 8,257 A2 A21
143 1,438 1  7/16 ,050 ,002 -,002 1,333 ,010 -,015 ,184 ,004 -,004 ,160 ,006 -,006 ,086 ,006 -,006 ,085 ,012 -,012 ,078 ,015 -,002 1,350 ,004 -,004 ,070 ,003 ,000 ,132 4.500 8.628 ,045 1.950 15.000 ,057 ,068 ,011 30 8,382 A2 A21
150 1,500 1  1/2 ,050 ,002 -,002 1,387 ,010 -,015 ,214 ,004 -,004 ,168 ,006 -,006 ,091 ,006 -,006 ,085 ,012 -,012 ,120 ,015 -,002 1,406 ,004 -,004 ,070 ,003 ,000 ,141 5.000 8.932 ,047 1.950 14.800 ,057 ,068 ,011 30 8,536 A2 A21
162 1,625 1  5/8 ,062 ,003 -,003 1,503 ,013 -,020 ,235 ,004 -,004 ,180 ,006 -,006 ,097 ,006 -,006 ,115 ,015 -,015 ,125 ,015 -,002 1,529 ,005 -,005 ,096 ,005 ,000 ,144 5.500 12.028 ,052 3.000 13.200 ,069 ,094 ,025 55 15,620 A3 A31
175 1,750 1  3/4 ,062 ,003 -,003 1,618 ,013 -,020 ,237 ,004 -,004 ,188 ,006 -,006 ,101 ,006 -,006 ,115 ,015 -,015 ,125 ,015 -,002 1,650 ,005 -,005 ,096 ,005 ,000 ,150 6.200 12.992 ,054 3.000 12.200 ,069 ,094 ,025 50 17,512 A3 A31
Dimensions in inches 
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Materials used

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Spring steel SAE 1060 / EN 10132 - 1/4 (DIN 17222)
From n. 25 to n. 106: strip C60S (C60)

Spring steel SAE 1074 / EN 10132 - 1/4 (DIN 17222)
From n. 112 to n. 175: wire C75S (C75)

Hardness

Spring steel SAE 1060/1074 / EN 10132 - 1/4 (DIN 17222)
From n. 25 to n. 46:  scale 30N 69.5 ÷ 73 (HRC 51 ÷ 55)
From n. 50 to n. 81:  scale 30N 66 ÷ 71 (HRC 47 ÷ 53)
From n. 87 to n. 102:  scale C  47 ÷ 53
From n. 106 to n. 175:  scale C  47 ÷ 52

Standard surface finish

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From n. 25 to n. 175: phosphated and oiled

Packaging

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To be defined in the order.

Additional information

Special requests
For different materials or surface finishes, please send here your request.
Price and minimum quantity to be established.