1、 WORLDWIDE FASTENER STANDARDWL 900 Date: 2005-11-01 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 4 Material and Performance Requirements of Retainer Rings FOREWORD: During the November 2005 update, section 3.2.1 was added to clarify the spiral flatness. Thi
2、s requirement is in line with Industry Standards. 1. SCOPE: This standard covers the material and performance requirements of E type, external and internal retainer rings for use on shafts and in bores. Assembly information is covered in the Appendix. 1.1 REFERENCES: WSD-M1A283-B50/51/52 Steel, cros
3、s reference for standard parts. 2. MATERIAL: Retainer rings shall be made from steel to WSD-M1A283-B50/51/52 hardened and tempered or austempered to 430 - 580HV. 3. PERFORMANCE: 3.1 PERMANENT SET 3.1.1 PERMANENT SET - EXTERNAL RETAINER RINGS A sample ring shall be expanded until it will just assembl
4、e on a shaft that has a diameter 1% larger than the nominal shaft diameter d1for the retainer ring to be tested. The ring shall show no signs of cracking when viewed at 10x magnification. Measure the ring in 3 places as shown in Figure 1 and compute the average of the 3 dimensions obtained. The aver
5、age diameter shall be less than the minimum groove diameter specified in Table A2 of the Appendix for the nominal size of the ring. Repeat this procedure 3 more times with the same ring. No increase in permanent set is acceptable. Figure 1 WORLDWIDE FASTENER STANDARDWL 900 Date: 2005-11-01 Printed c
6、opies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 4 3.1.2 PERMANENT SET - INTERNAL RETAINER RINGS: A sample ring shall be compressed until the lugs touch. The ring shall show no signs of cracking when viewed at 10x magnification. Measure the ring in 3 places as shown in
7、Figure 2 and compute the average of the 3 dimensions obtained. The average diameter shall be greater than the maximum groove diameter specified in Table A1 of the Appendix for the nominal size of the ring. Repeat this procedure 3 more times with the same ring. No increase in permanent set is accepta
8、ble. Figure 2. 3.1.3 PERMANENT SET - E TYPE RETAINER RINGS: The ring shall be assembled in the minimum groove diameter as specified in Table A3 appropriate to the size of retainer ring to be tested. There shall be contact of all 3 lug points. 3.2 DISHING: Dishing (See Figure 3) shall not exceed the
9、dimensions specified in Table 1 when received at Ford. 3.2.1 SPIRAL FLATNESS Spiral flatness, defined as misalignment of the ends shall meet the following: 1.5 x material thickness up to 100mm nominal diameter and 1.8 for sizes over 100mm. Figure 3. Table 1. Thickness s Permissible Dishing 0.25 - 0.
10、55 0.05 0.6 - 1 0.08 1.1 - 2.4 0.13 2.5 - 3.2 0.25 4 - 4.8 0.4 3.3 BENDING TEST: The retainer ring shall be clamped as shown in Figure 4 and bent through 30. There shall be no sign of fracture when view at 10x magnification. Figure 4. WORLDWIDE FASTENER STANDARDWL 900 Date: 2005-11-01 Printed copies
11、 are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 4 Assembly Information Internal Retaining Rings Bore Groove Table A1 Bore Dia. Bore Groove Axial Load d1d2Tol. m1H 13 m2Min. n Min. Nmax10 10.4 0.6 1570 11 11.4 1725 12 12.5 0.75 2350 13 13.6 0.9 3080 14 14.6 3925 15 15.7 1.1
12、4140 16 16.8 H 11 1.2 5050 17 17.8 5365 18 19 7110 19 20 1.1 1.2 7490 20 21 7650 21 22 1.5 7940 22 23 8190 24 25.2 11375 25 26.2 1.8 11770 26 27.2 12260 28 29.4 2.1 13040 30 31.4 1.3 1.4 13435 31 32.7 2.6 13530 32 33.7 H 12 13630 34 35.7 22750 35 37 26380 36 38 3.0 25900 37 39 1.6 1.7 26580 38 40 27
13、650 WORLDWIDE FASTENER STANDARDWL 900 Date: 2005-11-01 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 4 Assembly Information External Retaining Rings E Type Retaining Rings Shaft Groove Shaft Groove Table A2 Shaft Dia. Shaft Groove Axial Load1)d1/O d2m d1d2To
14、l. m1H 13 m2Min. n Min. NmaxRet. Min. 4 3.8 0.5 0.6 0.3 294 1.0 0.8 0.24 5 4.8 0.7 0.8 373 1.4 1.2 0.34 6 5.7 0.8 0.9 0.45 686 2.0 1.5 + .00 0.44 7 6.7 0.9 1 785 2.5 1.9 - .06 0.54 8 7.6 1177 3.0 2.3 0.64 9 8.6 0.6 1353 4.0 3.2 0.64 10 9.6 1500 5.0 4.0 + .00 0.74 11 10.5 0.75 2060 6.0 5.0 - .07 0.74
15、 12 11.5 2255 7.0 6.0 0.74 13 12.4 0.9 2941 8.0 7.0 0.94 14 13.4 h 11 1.1 1.2 3187 9.0 8.0 + .00 1.05 15 14.3 1.1 3922 10.0 9.0 - .09 1.15 16 15.2 1.2 4805 11.0 10.0 1.25 17 16.2 5100 13.0 12.0 + .00 1.35 18 17 6766 16.0 15.0 - .11 1.55 19 18 7110 20.0 19.0 + .00 1.80 20 19 7550 25.0 24.0 - .13 2.05
16、 21 20 1.5 7894 22 21 1.3 1.4 8286 1) The value shown are the axial loads the retainer ring will safely resist when seated in a groove as shown above on a shaft manufactured from a material with a yield point of not less than 295 N/mm2. 24 22.9 9905 25 23.9 1.7 10395 26 24.9 10787 28 26.6 14710 29 27.6 2.1 15298 30 28.6 1.6 1.7 15887 32 30.3 2.6 20594 34 32.3 21770 35 33 26184 36 34 h 12 3 27066 38 36 28537 40 37.5 37363 42 39.5 1.25 2 3.8 39277 45 42.5 42168 48 45.5 45110
