Top of page
Case studies
Inch POM composite bushings – shaft and housing tolerances, operating clearance

Inch POM composite bushings – shaft and housing tolerances, operating clearance

Bushing dimensions				Diameter limits						Operating
Bore	Outside	Wall		Shaft		Housing bore		Bore diameter of		clearance
diameter	diameter	thickness						mounted bushing
d	D	max.	min.	max.	min.	max.	min.	max.	min.	min.	max.
in / mm				in / mm						in / μm
³/₈	¹⁵/₃₂	0,051	0,050	0,3648	0,3639	0,4694	0,4687	0,3694	0,3667	0,0019	0,0055
9,525	11,906	1,295	1,270	9,266	9,243	11,922	11,904	9,382	9,314	48	139
⁷/₁₆	¹⁷/₃₂	0,051	0,050	0,4273	0,4263	0,5320	0,5313	0,4320	0,4293	0,0020	0,0057
11,113	13,494	1,295	1,270	10,853	10,828	13,512	13,494	10,974	10,904	50	142
¹/₂	¹⁹/₃₂	0,051	0,050	0,4897	0,4887	0,5944	0,5937	0,4944	0,4917	0,0020	0,0057
12,7	15,081	1,295	1,270	12,438	12,413	15,098	15,080	12,558	12,490	52	145
⁹/₁₆	²¹/₃₂	0,051	0,050	0,5522	0,5512	0,6569	0,6562	0,5569	0,5543	0,0021	0,0057
14,288	16,669	1,295	1,270	14,026	14,001	16,685	16,667	14,145	14,078	52	144
⁵/₈	²³/₃₂	0,051	0,050	0,6146	0,6136	0,7195	0,7187	0,6195	0,6167	0,0021	0,0059
15,875	18,256	1,295	1,270	15,611	15,585	18,275	18,255	15,735	15,665	54	150
¹¹/₁₆	²⁵/₃₂	0,051	0,050	0,6770	0,6760	0,7821	0,7812	0,6821	0,6793	0,0023	0,0061
17,463	19,844	1,295	1,270	17,196	17,170	19,865	19,842	17,325	17,254	58	155
³/₄	⁷/₈	0,0669	0,0657	0,7390	0,7378	0,8758	0,8750	0,7444	0,7412	0,0022	0,0066
19,05	22,225	1,699	1,669	18,771	18,740	22,245	22,225	18,907	18,827	56	167
⁷/₈	1	0,0669	0,0657	0,8639	0,8627	1,0008	1,0000	0,8694	0,8662	0,0023	0,0067
22,225	25,4	1,699	1,669	21,943	21,913	25,421	25,400	22,083	22,002	59	170
1	1¹/₈	0,0669	0,0657	0,9888	0,9876	1,1258	1,1250	0,9944	0,9912	0,0024	0,0068
25,4	28,575	1,699	1,669	25,116	25,085	28,595	28,575	25,258	25,177	61	173
1¹/₈	1⁹/₃₂	0,0824	0,0810	1,1138	1,1126	1,2822	1,2813	1,1203	1,1165	0,0027	0,0077
28,575	32,544	2,093	2,057	28,291	28,260	32,569	32,544	28,455	28,358	67	195
1¹/₄	1¹³/₃₂	0,0824	0,0810	1,2387	1,2371	1,4072	1,4063	1,2453	1,2415	0,0028	0,0082
31,75	35,719	2,093	2,057	31,463	31,422	35,743	35,719	31,639	31,533	70	208
1³/₈	1¹⁷/₃₂	0,0824	0,0810	1,3635	1,3619	1,5322	1,5313	1,3703	1,3664	0,0029	0,0084
34,925	38,894	2,093	2,057	34,633	34,592	38,919	38,894	34,805	34,708	75	213
1¹/₂	1²¹/₃₂	0,0824	0,0810	1,4884	1,4868	1,6572	1,6562	1,4953	1,4915	0,0031	0,0085
38,1	42,069	2,093	2,057	37,805	37,765	42,097	42,069	37,980	37,883	78	215
1⁵/₈	1²⁵/₃₂	0,0824	0,0810	1,6133	1,6117	1,7822	1,7813	1,6203	1,6165	0,0032	0,0086
41,275	45,244	2,093	2,057	40,978	40,937	45,269	45,244	41,155	41,058	80	218
1³/₄	1¹⁵/₁₆	0,098	0,0962	1,7383	1,7367	1,9385	1,9375	1,7461	1,7415	0,0032	0,0086
44,45	49,213	2,489	2,443	44,153	44,112	49,238	49,213	44,352	44,235	82	240
1⁷/₈	2¹/₁₆	0,098	0,0962	1,8632	1,8616	2,0637	2,0625	1,8713	1,8665	0,0033	0,0086
47,625	52,388	2,489	2,443	47,325	47,285	52,418	52,388	47,532	47,410	85	247
2	2³/₁₆	0,098	0,0962	1,9881	1,9863	2,1887	2,1875	1,9963	1,9915	0,0034	0,0100
50,8	55,563	2,489	2,443	50,498	50,452	55,593	55,563	50,707	50,585	87	255
2¹/₄	2⁷/₁₆	0,098	0,0962	2,2378	2,2360	2,4387	2,4375	2,2463	2,2415	0,0037	0,0103
57,15	61,913	2,489	2,443	56,840	56,794	61,943	61,913	57,057	56,935	95	263
2¹/₂	2¹¹/₁₆	0,098	0,0962	2,4875	2,4857	2,6887	2,6875	2,4963	2,4915	0,0040	0,0106
63,5	68,263	2,489	2,443	63,183	63,137	68,293	68,263	63,407	63,285	102	270
2³/₄	2¹⁵/₁₆	0,0991	0,0965	2,7351	2,7333	2,9387	2,9375	2,7457	2,7393	0,0042	0,0124
69,85	74,613	2,517	2,451	69,472	69,426	74,643	74,613	69,741	69,579	107	315
3	3³/₁₆	0,0991	0,0965	2,9849	2,9831	3,1889	3,1875	2,9959	2,9893	0,0044	0,0128
76,2	80,963	2,517	2,451	75,817	75,771	80,998	80,963	76,096	75,929	112	325
3¹/₂	3¹¹/₁₆	0,0991	0,0965	3,4844	3,4822	3,6889	3,6875	3,4959	3,4893	0,0049	0,0137
88,9	93,663	2,517	2,451	88,504	88,448	93,698	93,663	88,796	88,629	125	348
4	4³/₁₆	0,0991	0,0965	3,9839	3,9817	4,1889	4,1875	3,9959	3,9893	0,0054	0,0142
101,6	106,363	2,517	2,451	101,191	101,135	106,398	106,363	101,496	101,329	138	361

List of case studies

Support/Inquiries