Locking Assemblies RfN 7015.1 for Bending Loads

This version of the RfN 7015 is designed for high bending load applications such as conveyor pulleys, by providing lower shaft and hub pressures.

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RfN 7015.1

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d mm	D mm	L mm	L₁ mm	T_A Nm	T Nm	p_W N/mm²	p_N N/mm²	M_bmax Nm	p_Wmaxbei M_bmax N/mm²	p_Nmaxbei M_bmax N/mm²	T_res bei M_bmax Nm
100	145	75	65	83	6575	91	63	6540	125	86	681
110	155	75	65	83	8037	92	65	7900	130	92	1475
120	165	75	65	83	10521	101	74	10460	147	107	1128
130	180	84	74	83	14247	101	73	14170	145	105	1476
140	190	84	74	83	15343	94	69	15260	138	101	1589
150	200	84	74	83	17534	94	70	17440	140	105	1816
160	210	84	74	83	21041	99	75	20930	151	115	2160
170	225	93	81	145	27352	105	80	27210	159	120	2788
180	235	93	81	145	30892	106	81	30730	164	125	3161
190	250	106	94	145	36684	96	73	36500	144	109	3674
200	260	106	94	145	42906	101	78	42690	154	119	4298
220	285	116	104	145	49556	89	69	49300	135	104	5033
240	305	116	104	145	61784	93	73	61470	145	114	6225
260	325	116	104	145	75300	97	77	74920	155	124	7552
280	355	140	126	230	115034	106	84	114450	164	129	11574
300	375	140	126	230	123250	99	80	122630	157	125	12351
320	405	158	142	355	179962	110	87	179050	171	135	18093
340	425	158	142	355	191209	103	83	190250	164	131	19131
360	455	183	165	485	209622	84	67	208570	130	103	20978
380	475	183	165	485	248927	90	72	247670	141	113	24980
400	495	183	165	485	310552	101	82	308990	162	131	31104
420	515	183	165	485	326079	96	78	324440	157	128	32655
440	545	200	180	690	372775	91	74	370900	147	119	37338
460	565	200	180	690	389719	87	71	387760	143	117	39026
480	585	200	180	690	451848	93	76	449500	155	127	46004
500	605	200	180	690	470675	89	74	468300	151	125	47224
520	630	220	200	690	522135	80	66	519500	134	110	52395
540	650	220	200	690	542218	77	64	539400	131	109	55205
560	670	220	200	690	632587	84	70	629400	144	120	63421
580	690	220	200	690	655180	81	68	651890	141	119	65573
600	710	220	200	690	677772	78	66	674370	138	117	67823
620	730	220	200	690	700364	76	64	696850	136	115	70074
640	750	220	200	690	722957	73	63	705037	132	113	159967
660	770	220	200	690	828388	79	68	783300	142	122	269570
680	790	220	200	690	853491	77	66	783300	138	119	338951
700	810	220	200	690	878593	75	64	783300	134	116	397954
720	830	220	200	690	903696	73	63	783300	131	113	450675
740	850	220	200	690	975239	74	65	822500	133	116	524008
760	870	220	200	690	1001596	72	63	822500	130	113	571567
780	890	220	200	690	1027954	70	62	822500	127	111	616590
800	910	220	200	690	1054312	69	60	822500	123	108	659597

d inch	D inch	L inch	L₁ inch	T_A ft-lbs	T ft-lbs	p_W psi	p_N psi	M_bmax ft-lbs	p_Wmaxbei M_bmax psi	p_Nmaxbei M_bmax psi	T_res bei M_bmax ft-lbs
3.937	5.709	2.953	2.559	61	4850	13188	9130	4824	18116	12464	502
4.331	6.102	2.953	2.559	61	5928	13333	9420	5827	18841	13333	1088
4.724	6.496	2.953	2.559	61	7760	14638	10725	7715	21304	15507	832
5.118	7.087	3.307	2.913	61	10508	14638	10580	10451	21014	15217	1089
5.512	7.480	3.307	2.913	61	11317	13623	10000	11255	20000	14638	1172
5.906	7.874	3.307	2.913	61	12933	13623	10145	12863	20290	15217	1339
6.299	8.268	3.307	2.913	61	15519	14348	10870	15437	21884	16667	1593
6.693	8.858	3.661	3.189	107	20174	15217	11594	20069	23043	17391	2056
7.087	9.252	3.661	3.189	107	22785	15362	11739	22666	23768	18116	2331
7.480	9.843	4.173	3.701	107	27057	13913	10580	26921	20870	15797	2710
7.874	10.236	4.173	3.701	107	31646	14638	11304	31487	22319	17246	3170
8.661	11.220	4.567	4.094	107	36551	12899	10000	36362	19565	15072	3712
9.449	12.008	4.567	4.094	107	45570	13478	10580	45339	21014	16522	4591
10.236	12.795	4.567	4.094	107	55539	14058	11159	55259	22464	17971	5570
11.024	13.976	5.512	4.961	170	84846	15362	12174	84415	23768	18696	8537
11.811	14.764	5.512	4.961	170	90906	14348	11594	90448	22754	18116	9110
12.598	15.945	6.220	5.591	262	132735	15942	12609	132062	24783	19565	13345
13.386	16.732	6.220	5.591	262	141030	14928	12029	140323	23768	18986	14110
14.173	17.913	7.205	6.496	358	154611	12174	9710	153835	18841	14928	15473
14.961	18.701	7.205	6.496	358	183602	13043	10435	182674	20435	16377	18425
15.748	19.488	7.205	6.496	358	229054	14638	11884	227902	23478	18986	22941
16.535	20.276	7.205	6.496	358	240507	13913	11304	239298	22754	18551	24085
17.323	21.457	7.874	7.087	509	274948	13188	10725	273565	21304	17246	27539
18.110	22.244	7.874	7.087	509	287446	12609	10290	286001	20725	16957	28784
18.898	23.031	7.874	7.087	509	333270	13478	11014	331539	22464	18406	33931
19.685	23.819	7.874	7.087	509	347157	12899	10725	345405	21884	18116	34831
20.472	24.803	8.661	7.874	509	385112	11594	9565	383169	19420	15942	38645
21.260	25.591	8.661	7.874	509	399925	11159	9275	397846	18986	15797	40718
22.047	26.378	8.661	7.874	509	466578	12174	10145	464228	20870	17391	46778
22.835	27.165	8.661	7.874	509	483242	11739	9855	480816	20435	17246	48365
23.622	27.953	8.661	7.874	509	499906	11304	9565	497396	20000	16957	50024
24.409	28.740	8.661	7.874	509	516569	11014	9275	513977	19710	16667	51685
25.197	29.528	8.661	7.874	509	533233	10580	9130	520015	19130	16377	117987
25.984	30.315	8.661	7.874	509	610996	11449	9855	577740	20580	17681	198827
26.772	31.102	8.661	7.874	509	629511	11159	9565	577740	20000	17246	250001
27.559	31.890	8.661	7.874	509	648026	10870	9275	577740	19420	16812	293520
28.346	32.677	8.661	7.874	509	666541	10580	9130	577740	18986	16377	332405
29.134	33.465	8.661	7.874	509	719309	10725	9420	606653	19275	16812	386494
29.921	34.252	8.661	7.874	509	738749	10435	9130	606653	18841	16377	421572
30.709	35.039	8.661	7.874	509	758190	10145	8986	606653	18406	16087	454779
31.496	35.827	8.661	7.874	509	777631	10000	8696	606653	17826	15652	486500

Images & Drawings

Dimensions

Location

Conveyor Pulley

Characteristics

Version of the Locking Assembly RfN 7015.0 with lower surface pressure for reduction of the stresses at soft end discs.

Explanation to table

A bending moment, created by radial forces, results in an additional load for the Locking Assembly, shaft and hub. This load creates an additional pressure, works in rotation and has to be superpositioned with the pressure resulting from the Locking Assembly. For a viable connection, a minimum surface pressure at the contact areas between Locking Assembly, shaft and hub must be maintained, as soon as shaft and hub have to take up the maximal pressures. Additionally, the listed torque values (T) have been reduced due to the additional bending moments. To achieve lower stresses for the Locking Assemblies the screw tightening torques (T_A) have also been reduced.

RINGFEDER® Locking Assemblies – How to Use Them?

Downloads

Product Paper RINGFEDER® Locking Assemblies Bending Loads

Tech Paper Locking Assemblies Bending Loads RINGFEDER® RfN 7015.1

Instruction Manual Locking Assemblies RINGFEDER® RfN 7015.0, RfN 7015.1

If indicated pressures are too high for your specific application, please refer to the corresponding Tech Papers with reduced bending loads (M_b 20% to M_b 80%).

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