Locking Assemblies RfN 7515 for Bending Loads

Especially for the bending moment transmission designed 3 part Locking Assembly with reduced stresses in the Locking Assembly itself.

Special Features - Through the long and flat cones one Locking Assembly RfN 7515 can transmit torques and axial forces and bending loads. At mounting is a small axial movement from Locking Assembly and hub.

Bending moment and radial loads – combined loads can be transmitted (Please contact our specialists for assistance).
Excellent centering ability – with a relatively wide design.
Example applications: Belt drums, gear wheels

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Calculation

Technical Data & CAD Models

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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
60	95	58	50	41	4299	186	118	2800	228	144	3262
70	110	70	60	83	7280	197	125	5040	242	154	5253
80	120	70	60	83	10399	216	144	7210	272	181	7494
90	130	70	60	83	12869	211	146	8890	272	189	9305
100	145	82	70	145	18881	209	144	10080	254	175	15965
110	155	82	70	145	20769	190	135	11070	235	167	17573
120	165	82	70	145	24923	191	139	14490	246	179	20278
130	180	91	79	145	34364	207	150	19710	262	190	28150
140	190	91	79	145	39651	206	152	19440	257	189	34558
150	200	91	79	145	42483	193	144	27270	259	194	32575
160	210	91	79	145	48336	193	147	22050	243	185	43014
170	225	106	92	230	65790	195	147	30900	243	183	58082
180	235	106	92	230	69660	184	141	44820	250	191	53327
190	250	116	102	230	78432	165	125	54460	226	172	56442
200	260	116	102	230	92880	176	135	40470	219	169	83600
220	285	126	110	355	116459	173	133	75870	236	182	88353
240	305	124	108	355	169394	211	166	43460	245	193	163724
260	325	127	111	355	183510	176	141	67410	221	177	170681
280	355	131	111	690	230199	205	162	112140	277	219	201038
300	375	131	111	690	263085	204	163	125280	279	223	231341
320	405	156	136	690	350780	189	150	170050	252	199	306805
340	425	156	136	690	372704	178	143	206820	250	200	310054
360	455	177	155	930	487557	174	137	265770	239	189	408752
380	475	177	155	930	514644	164	132	350820	247	197	376541
400	495	177	155	930	595903	172	139	369270	254	205	467697
420	515	177	155	930	682580	179	146	286396	239	195	619591
440	535	177	155	930	715084	170	140	387810	249	205	600790
460	555	177	155	930	747588	163	135	463939	253	210	586215
480	575	177	155	930	812595	163	136	437178	244	204	684972
500	595	177	155	930	846453	156	131	436816	234	197	725034
520	615	177	155	930	985949	168	142	506360	255	216	845987
540	635	177	155	930	1023870	162	138	629600	266	226	807412
560	655	177	155	930	1137633	167	143	541600	254	217	1000439
580	675	177	155	930	1178263	162	139	664900	264	227	972734
600	695	177	155	930	1218893	156	135	782334	272	235	934694
620	715	177	155	930	1259522	151	131	909163	282	244	871676
640	735	177	155	930	1300152	146	128	631858	234	204	1136288

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
2.362	3.740	2.283	1.969	30	3171	26957	17101	2065	33043	20870	2406
2.756	4.331	2.756	2.362	61	5370	28551	18116	3717	35072	22319	3874
3.150	4.724	2.756	2.362	61	7670	31304	20870	5318	39420	26232	5527
3.543	5.118	2.756	2.362	61	9492	30580	21159	6557	39420	27391	6863
3.937	5.709	3.228	2.756	107	13926	30290	20870	7435	36812	25362	11775
4.331	6.102	3.228	2.756	107	15319	27536	19565	8165	34058	24203	12961
4.724	6.496	3.228	2.756	107	18383	27681	20145	10687	35652	25942	14956
5.118	7.087	3.583	3.110	107	25346	30000	21739	14538	37971	27536	20763
5.512	7.480	3.583	3.110	107	29245	29855	22029	14338	37246	27391	25489
5.906	7.874	3.583	3.110	107	31334	27971	20870	20114	37536	28116	24026
6.299	8.268	3.583	3.110	107	35651	27971	21304	16263	35270	26852	31725
6.693	8.858	4.173	3.622	170	48525	28261	21304	22791	35270	26562	42840
7.087	9.252	4.173	3.622	170	51379	26667	20435	33058	36232	27681	39332
7.480	9.843	4.567	4.016	170	57849	23913	18116	40168	32803	24965	61660
7.874	10.236	4.567	4.016	170	68506	25507	19565	29849	31787	24530	62003
8.661	11.220	4.961	4.331	262	85897	25072	19275	55960	34203	26377	65167
9.449	12.008	4.882	4.252	262	124940	30580	24058	32054	35561	28013	120757
10.236	12.795	5	4.370	262	142120	26667	21449	49719	32077	25691	125888
11.024	13.976	5.157	4.370	509	169788	29710	23478	82711	40205	31739	148280
11.811	14.764	5.157	4.370	509	194044	29565	23623	92403	40495	32367	170631
12.598	15.945	6.142	5.354	509	258725	27391	21739	125422	36577	28884	226288
13.386	16.732	6.142	5.354	509	274896	25797	20725	152545	36232	28986	228687
14.173	17.913	6.968	6.102	686	359608	25217	19855	196024	34638	27391	301484
14.961	18.701	6.968	6.102	686	379587	23768	19130	258755	35797	28551	277726
15.748	19.488	6.968	6.102	686	439521	24928	20145	272363	36812	29710	344960
16.535	20.276	6.968	6.102	686	503452	25942	21159	211235	34690	28303	456987
17.323	21.063	6.968	6.102	686	527426	24638	20290	286034	36141	29710	443120
18.110	21.850	6.968	6.102	686	551400	23623	19565	342184	36722	30480	432370
18.898	22.638	6.968	6.102	686	599347	23623	19710	322446	35415	29610	505209
19.685	23.425	6.968	6.102	686	624320	22609	18986	322179	33964	28594	534758
20.472	24.213	6.968	6.102	686	727208	24348	20580	373472	37012	31351	623968
21.260	25.000	6.968	6.102	686	755178	23478	20000	464375	38551	32754	595524
22.047	25.787	6.968	6.102	686	839086	24203	20725	399464	36867	31496	737886
22.835	26.575	6.968	6.102	686	869054	23478	20145	490405	38318	32948	717452
23.622	27.362	6.968	6.102	686	899021	22609	19565	577020	39479	34109	689395
24.409	28.150	6.968	6.102	686	928988	21884	18986	670564	40870	35415	642915
25.197	28.937	6.968	6.102	686	958956	21159	18551	466034	33964	29610	838083

Images & Drawings

Dimensions

Location

Conveyor pulleys

Product Characteristics

Especially for the bending moment transmission designed 3 part Locking Assembly with reduced stresses in the Locking Assembly itself.

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 7515

Instruction Manual Locking Assemblies RINGFEDER® RfN 7515

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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