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

Loyal bearings

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
¹/₈	³/₁₆	0,0315	0,0305	0,1242	0,1236	0,1878	0,1873	0,1268	0,1243	0,0001	0,0032
3,175	4,763	0,800	0,775	3,155	3,139	4,769	4,757	3,219	3,157	2	80
³/₁₆	¹/₄	0,0315	0,0305	0,1867	0,1858	0,2503	0,2497	0,1893	0,1867	0	0,0035
4,763	6,350	0,800	0,775	4,743	4,719	6,358	6,343	4,792	4,743	0	89
¹/₄	⁵/₁₆	0,0315	0,0305	0,2490	0,2482	0,3128	0,3122	0,2518	0,2493	0,0003	0,0036
6,35	7,938	0,800	0,775	6,325	6,304	7,946	7,931	6,396	6,331	6	92
⁵/₁₆	³/₈	0,0315	0,0305	0,3115	0,3113	0,3753	0,3747	0,3143	0,3117	0,0002	0,0030
7,938	9,525	0,800	0,775	7,913	7,907	9,533	9,518	7,983	7,918	5	76
³/₈	¹⁵/₃₂	0,0471	0,0461	0,3740	0,3738	0,4691	0,4684	0,3769	0,3742	0,0002	0,0031
9,525	11,906	1,196	1,171	9,500	9,496	11,916	11,898	9,574	9,506	6	78
⁷/₁₆	¹⁷/₃₂	0,0471	0,0461	0,4363	0,4358	0,5317	0,5309	0,4394	0,4368	0,0005	0,0036
11,113	13,494	1,196	1,171	11,081	11,070	13,504	13,486	11,162	11,094	13	92
¹/₂	¹⁹/₃₂	0,0471	0,0461	0,4987	0,4983	0,5941	0,5934	0,5019	0,4992	0,0005	0,0036
12,7	15,081	1,196	1,171	12,668	12,657	15,091	15,073	12,749	12,681	13	92
⁹/₁₆	²¹/₃₂	0,0471	0,0461	0,5613	0,5608	0,6566	0,6559	0,5644	0,5618	0,0005	0,0036
14,288	16,669	1,196	1,171	14,256	14,245	16,679	16,661	14,337	14,269	13	92
⁵/₈	²³/₃₂	0,0471	0,0461	0,6237	0,6233	0,7192	0,7184	0,6270	0,6242	0,0005	0,0037
15,875	18,256	1,196	1,171	15,843	15,832	18,268	18,247	15,926	15,855	12	94
¹¹/₁₆	²⁵/₃₂	0,0471	0,0461	0,6863	0,6858	0,7817	0,7809	0,6895	0,6867	0,0005	0,0036
17,463	19,844	1,196	1,171	17,431	17,420	19,856	19,833	17,514	17,441	10	94
³/₄	⁷/₈	0,0627	0,0615	0,7484	0,7479	0,8755	0,8747	0,7525	0,7493	0,0009	0,0046
19,05	22,225	1,592	1,562	19,010	18,997	22,237	22,216	19,113	19,032	22	116
⁷/₈	1	0,0627	0,0615	0,8734	0,8729	1,0005	0,9997	0,8775	0,8743	0,0009	0,0046
22,225	25,4	1,592	1,562	22,185	22,172	25,412	25,391	22,288	22,207	22	116
1	1¹/₈	0,0627	0,0615	0,9984	0,9979	1,1255	1,1246	1,0025	0,9993	0,0009	0,0046
25,4	28,575	1,592	1,562	25,360	25,347	28,587	28,566	25,463	25,382	22	116
1¹/₈	1⁹/₃₂	0,0782	0,0770	1,1234	1,1229	1,2817	1,2813	1,1278	1,1245	0,0011	0,0049
28,575	32,544	1,991	1,955	28,535	28,522	32,555	32,544	28,645	28,562	27	123
1¹/₄	1¹³/₃₂	0,0782	0,0770	1,2480	1,2474	1,4067	1,4063	1,2528	1,2495	0,0015	0,0054
31,75	35,719	1,991	1,955	31,700	31,684	35,730	35,719	31,820	31,737	37	136
1³/₈	1¹⁷/₃₂	0,0782	0,0770	1,3730	1,3724	1,5317	1,5313	1,3778	1,3745	0,0015	0,0054
34,925	38,894	1,991	1,955	34,875	34,859	38,905	38,894	34,995	34,912	37	136
1¹/₂	1²¹/₃₂	0,0782	0,0770	1,4980	1,4974	1,6567	1,6563	1,5028	1,4995	0,0015	0,0054
38,1	42,069	1,991	1,955	38,050	38,034	42,080	42,069	38,170	38,087	37	136
1⁵/₈	1²⁵/₃₂	0,0782	0,0770	1,6230	1,6224	1,7817	1,7813	1,6278	1,6245	0,0015	0,0054
41,275	45,244	1,991	1,955	41,225	41,209	45,255	45,244	41,345	41,262	37	136
1³/₄	1¹⁵/₁₆	0,0941	0,0923	1,7480	1,7472	1,9381	1,9375	1,7535	1,7493	0,0013	0,0063
44,45	49,213	2,390	2,344	44,400	44,379	49,224	49,213	44,536	44,433	33	157
1⁷/₈	2¹/₁₆	0,0941	0,0923	1,8730	1,8724	2,0630	2,0625	1,8784	1,8743	0,0013	0,0060
47,625	52,388	2,390	2,344	47,575	47,559	52,401	52,388	47,713	47,608	33	154
2	2³/₁₆	0,0941	0,0923	1,9976	1,9969	2,1880	2,1875	2,0034	1,9991	0,0015	0,0065
50,8	55,563	2,390	2,344	50,739	50,721	55,575	55,557	50,887	50,777	38	166
2¹/₄	2⁷/₁₆	0,0928	0,0902	2,25	2,2493	2,4380	2,4375	2,2576	2,2519	0,0019	0,0083
57,15	61,913	2,357	2,291	57,15	57,131	61,926	61,913	57,344	57,199	49	213
2¹/₂	2¹¹/₁₆	0,0928	0,0902	2,5	2,4993	2,6880	2,6875	2,5076	2,5019	0,0019	0,0083
63,5	68,263	2,357	2,291	63,5	63,481	68,276	68,263	63,694	63,549	49	213
2³/₄	2¹⁵/₁₆	0,0928	0,0902	2,75	2,7493	2,9381	2,9375	2,7577	2,7519	0,0019	0,0084
69,85	74,613	2,357	2,291	69,85	69,832	74,628	74,613	70,046	69,899	49	214
3	3³/₁₆	0,0928	0,0902	3	2,9993	3,1881	3,1875	3,0077	3,0019	0,0019	0,0084
76,2	80,963	2,357	2,291	76,2	76,182	80,978	80,963	76,396	76,249	49	214
3¹/₂	3¹¹/₁₆	0,0928	0,0902	3,5	3,4991	3,6881	3,6875	3,5077	3,5019	0,0019	0,0086
88,9	93,663	2,357	2,291	88,9	88,878	93,678	93,663	89,096	88,949	49	218
4	4³/₁₆	0,0928	0,0902	4	3,9991	4,1881	4,1875	4,0077	4,0019	0,0019	0,0086
101,6	106,363	2,357	2,291	101,6	101,578	106,378	106,363	101,796	101,649	49	218
5	5³/₁₆	0,0928	0,0902	5	4,9990	5,1882	5,1875	5,0078	5,0019	0,0019	0,0088
127	131,763	2,357	2,291	127	126,975	131,781	131,763	127,199	127,049	49	224
6	6³/₁₆	0,0928	0,0902	6	5,9990	6,1882	6,1876	6,0078	6,0019	0,0019	0,0088
152,4	157,163	2,357	2,291	152,4	152,375	157,181	157,163	152,599	152,449	49	224
7	7³/₁₆	0,0928	0,0902	7	6,9990	7,1883	7,1875	7,0079	7,0019	0,0019	0,0089
177,8	182,563	2,357	2,291	177,800	177,775	182,583	182,563	178,001	177,849	49	226

1)
All ISO tolerance classes are valid with the envelope requirement (such as H7) in accordance with ISO 14405-1:2010.

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