DIN 5417 (M3200/SP):2011 Fastener for rolling bearings with ring grooves is used for axial positioning in bearing systems. Its design is intended for grooved bearings or related mounting components and helps prevent unintended displacement of the bearing on the shaft or in the housing.
The product is suitable for motors, gearboxes, precision drives, pumps, and rotating machinery. A retaining ring occupies little space in bearing assemblies and creates a mechanical stop with the groove, helping maintain bearing operating position and assembly clearance.
Selection should consider bearing size, groove dimensions, speed, load, and lubrication environment. Material and surface condition can be matched to corrosion-resistance or cleanliness requirements.

Dimensions unit: mm
| Used in | 30 | 32 | 35 | 37 | 40 | 42 | 44 | 47 | 50 | 52 | 55 | 56 | 58 | 62 | ||
| d1 | Min. | 27.5 | 29.5 | 32.5 | 34.1 | 37.4 | 39 | 41 | 43.8 | 46.8 | 48.9 | 51.8 | 52.6 | 54.6 | 58.4 | |
| Max. | 27.9 | 29.9 | 32.9 | 34.5 | 37.8 | 39.5 | 41.5 | 44.3 | 47.3 | 49.4 | 52.3 | 53.2 | 55.2 | 59 | ||
| dc | Max. | 34.7 | 36.7 | 39.7 | 41.3 | 44.6 | 46.3 | 48.3 | 52.7 | 55.7 | 57.9 | 60.7 | 61.7 | 63.7 | 67.7 | |
| h | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.12 | 1.7 | ||
| n | ≈ | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| Code name | SP 30 | SP 32 | SP 35 | SP 37 | SP 40 | SP 42 | SP 44 | SP 47 | SP 50 | SP 52 | SP 55 | SP 56 | SP 58 | SP 62 | ||
| Weight per thousand pieces (steel)≈kg | 2.8 | 3 | 3.2 | 3.4 | 3.6 | 3.8 | 4 | 5.3 | 5.8 | 5.9 | 6.2 | 6.5 | 6.7 | 10.5 | ||
| Used in | 65 | 68 | 72 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 115 | 120 | 125 | 130 | ||
| d1 | Min. | 61.4 | 63.6 | 67.6 | 70.6 | 75.6 | 80.6 | 85.6 | 90.6 | 95.4 | 105.4 | 110.4 | 113.8 | 118.8 | 123.8 | |
| Max. | 62 | 64.2 | 68.2 | 71.2 | 76.2 | 81.2 | 86.2 | 91.2 | 96.2 | 106.2 | 111.2 | 114.6 | 119.6 | 124.6 | ||
| dc | Max. | 70.7 | 74.6 | 78.6 | 81.6 | 86.6 | 91.6 | 96.5 | 101.6 | 106.5 | 116.6 | 121.6 | 129.7 | 134.7 | 139.7 | |
| h | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 2.46 | 2.46 | 2.46 | 2.46 | 2.46 | 2.82 | 2.82 | 2.82 | ||
| n | ≈ | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 7 | |
| Code name | SP 65 | SP 68 | SP 72 | SP 75 | SP 80 | SP 85 | SP 90 | SP 95 | SP 100 | SP 110 | SP 115 | SP 120 | SP 125 | SP 130 | ||
| Weight per thousand pieces (steel)≈kg | 11 | 12.6 | 14.7 | 15.3 | 16.3 | 17.5 | 26.6 | 28.2 | 29.2 | 32.8 | 34.4 | 60.6 | 63 | 65.6 | ||
| Used in | 140 | 145 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 215 | 225 | 230 | 240 | 250 | ||
| d1 | Min. | 133.4 | 138.4 | 143.3 | 153.3 | 161.7 | 171.6 | 181.4 | 191.4 | 201.3 | 206.3 | 214.7 | 219.6 | 229.6 | 239.6 | |
| Max. 11 |
134.6 | 139.6 | 144.5 | 154.5 | 162.9 | 172.8 | 182.8 | 192.8 | 202.7 | 207.7 | 216.1 | 221 | 231 | 241 | ||
| dc | Max. | 149.7 | 154.7 | 159.7 | 169.7 | 182.9 | 192.9 | 202.9 | 212.9 | 222.8 | 227.8 | 237 | 242 | 252 | 262 | |
| h | 2.82 | 2.82 | 2.82 | 2.82 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.5 | 3.5 | 3.5 | 3.5 | ||
| n | ≈ | 7 | 7 | 7 | 7 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Code name | SP 140 | SP 145 | SP 150 | SP 160 | SP 170 | SP 180 | SP 190 | SP 200 | SP 210 | SP 215 | SP 225 | SP 230 | SP 240 | SP 250 | ||
| Weight per thousand pieces (steel)≈kg | 70.6 | 73 | 77.2 | 81 | 122 | 128 | 139 | 148 | 156 | 160 | 196 | 200 | 209 | 220 | ||
| Used in | 260 | 270 | 280 | 290 | 300 | 310 | 320 | 340 | 360 | 370 | 380 | 400 | ||
| d1 | Min. | 247.5 | 257.5 | 267.5 | 277.5 | 284.5 | 294 | 304 | 324 | 343 | 353 | 363 | 383 | |
| Max. | 250 | 260 | 270 | 280 | 287 | 297 | 307 | 327 | 346 | 356 | 366 | 386 | ||
| dc | Max. | 272 | 282 | 292 | 302 | 314 | 324 | 334 | 354 | 374 | 384 | 394 | 414 | |
| h | 3.5 | 3.5 | 3.5 | 3.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | ||
| n | ≈ | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Code name | SP 260 | SP 270 | SP 280 | SP 290 | SP 300 | SP 310 | SP 320 | SP 340 | SP 360 | SP 370 | SP 380 | SP 400 | ||
| Weight per thousand pieces (steel)≈kg | 230 | 240 | 250 | 260 | 400 | 412 | 420 | 446 | 475 | 485 | 500 | 525 | ||
① Material: spring strip steel with hardness of 450 HV~520 HV
FAQ
A: We take every inquiry seriously. On working days, we will respond within 12 hours after receiving your inquiry.
A: We focus on the production of fasteners made of carbon steel, stainless steel, and low-alloy steel. We are a direct manufacturer with independent production capacity. DIN 5417 (M3200/SP):2011 Fastener Factory. We own several fastener manufacturing facilities and have an international sales department, providing full-process services from production to export.
A: Customized production is our core business. We can develop and manufacture products based on the drawings or samples you provide.
A: Yes. In addition to custom products, we also produce general construction machinery parts (GET parts) for equipment such as excavators, including bucket teeth, tooth holders, corner blades, pins, clips, bolts and nuts. DIN 5417 (M3200/SP):2011 Fastener Wholesale.
A: We have 12 energy-efficient and environmentally friendly modern production lines (including one fully automatic shell molding line and four heat treatment lines), with an annual production capacity exceeding 20,000 tons, enabling us to steadily meet various order requirements.
A: Trade terms (such as FOB, CIF, etc.) are confirmed when quoting. For batch production, we typically require a 30% deposit, with the balance paid against the copy of the bill of lading. T/T is the main payment method accepted, and L/C can also be negotiated.
A: We are only 35 km away from Shanghai Port and Ningbo Port, so sea freight is the main mode of transportation, which is convenient and efficient. For urgent deliveries, we can also arrange air freight via Ningbo or Shanghai airports.
About Us
Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010. DIN 5417 (M3200/SP):2011 Fastener Suppliers in China.
The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.
With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.
Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time deliveryNEWS