DIN981 Locknuts For Use with Rolling Bearings Supplier In China
Ningbo Teng Qi Fasteners Co., Ltd. is a reliable supplier of DIN981 Locknuts For Use with Rolling Bearings, providing high-quality locking solutions designed for applications requiring secure bearing positioning and accurate axial adjustment. Manufactured according to DIN981 standards, our locknuts feature precise thread dimensions, excellent mechanical strength, and stable locking performance to prevent loosening caused by vibration or continuous operation. With advanced production processes, strict quality control, and professional inspection procedures, we ensure every locknut delivers consistent performance and dependable service in demanding industrial environments.
Unlike standard locking nuts, DIN981 locknuts are engineered specifically for rolling bearing assemblies where precision, durability, and repeatability are critical. We support various sizes, materials, and surface treatments to meet different application requirements, including heavy machinery, gear systems, electric motors, industrial equipment, and automation systems. With extensive experience in customized fastener manufacturing, we provide not only reliable products but also technical support, flexible production solutions, and stable supply capabilities to help customers improve equipment reliability and reduce maintenance costs.


Specification:
DIN981 Locknuts For Use with Rolling Bearings are manufactured according to DIN standards and are specially designed for securing rolling bearings on shafts and ensuring accurate axial positioning. These locknuts are typically produced from high-quality carbon steel, alloy steel, or stainless steel materials, offering excellent mechanical strength, wear resistance, and long-term stability. The precision-machined thread and accurately positioned locking features allow the locknuts to maintain reliable fastening performance under vibration, heavy loads, and continuous operating conditions.
| Product name | DIN981 Locknuts For Use with Rolling Bearings |
|---|---|
| Thread Diameter: | M10-M200 |
| Material: | SS304 SS316 C45 Q235 20# |
| Surface Treatment | Black Oxidation/Plain/Bright Pickling |
| Packaging: | Boxes/cartons into wooden pallets |
Dimension Chart of DIN981 Locknuts For Use with Rolling Bearings:
The dimension chart of DIN981 Locknuts For Use with Rolling Bearings provides detailed information on key parameters, including thread size, outer diameter, width, locking hole dimensions, and other critical specifications. These dimensional requirements ensure proper compatibility with rolling bearings, adapter sleeves, shafts, and related mechanical components. By following DIN981 standard dimensions, manufacturers and users can achieve accurate installation, reliable locking performance, and stable operation in various bearing assemblies.

| Mon | M10 | M12 | M15 | M17 | M20 | M25 | M30 | M35 | M40 | M45 | M50 | M55 | M60 | M65 | M70 | M75 | M80 | M85 | M90 |
| P | 0.75 | 1 | 1 | 1 | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| dk max | 18 | 22 | 25 | 28 | 32 | 38 | 45 | 52 | 58 | 65 | 70 | 75 | 80 | 85 | 92 | 98 | 105 | 110 | 120 |
| dk min | 17.73 | 21.67 | 24.67 | 27.67 | 31.61 | 37.61 | 44.61 | 51.54 | 57.54 | 64.54 | 69.54 | 74.54 | 79.54 | 84.46 | 91.46 | 97.46 | 104.46 | 109.46 | 119.46 |
| k max | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 12 | 12 | 13 | 15 | 16 | 16 |
| k min | 3.82 | 3.82 | 4.82 | 4.82 | 5.82 | 6.78 | 6.78 | 7.78 | 8.78 | 9.78 | 10.73 | 10.73 | 10.73 | 11.73 | 11.73 | 12.73 | 14.73 | 15.73 | 15.73 |
| n max | 3.125 | 3.125 | 4.15 | 4.15 | 4.15 | 5.15 | 5.15 | 5.15 | 6.15 | 6.15 | 6.15 | 7.18 | 7.18 | 7.18 | 8.18 | 8.18 | 8.18 | 8.18 | 10.18 |
| n min | 2.875 | 2.875 | 3.85 | 3.85 | 3.85 | 4.85 | 4.85 | 4.85 | 5.85 | 5.85 | 5.85 | 6.82 | 6.82 | 6.82 | 7.82 | 7.82 | 7.82 | 7.82 | 9.82 |
| t max | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 | 4.7 | 4.7 | 4.7 | 4.7 | 5.2 |
| t min | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3.5 | 3.5 | 3.5 | 3.5 | 4 |
| Mon | M95 | M100 | M105 | M110 | M115 | M120 | M125 | M130 | M135 | M140 | M145 | M150 | M155 | M160 | M165 | M170 | M180 | M190 | M200 |
| P | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| dk max | 125 | 130 | 140 | 145 | 150 | 145 | 160 | 155 | 175 | 165 | 190 | 180 | 200 | 190 | 210 | 200 | 210 | 220 | 240 |
| dk min | 124.37 | 129.37 | 139.37 | 144.37 | 149.37 | 144.37 | 159.37 | 154.37 | 174.37 | 164.37 | 189.28 | 179.37 | 199.28 | 189.28 | 209.28 | 199.28 | 209.28 | 219.28 | 239.28 |
| k max | 17 | 18 | 18 | 19 | 19 | 20 | 21 | 21 | 22 | 22 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 29 |
| k min | 16.73 | 17.73 | 17.73 | 18.67 | 18.67 | 19.67 | 20.67 | 20.67 | 21.67 | 21.67 | 23.67 | 23.67 | 24.67 | 24.67 | 25.67 | 25.67 | 26.67 | 27.67 | 28.67 |
| n max | 10.18 | 10.18 | 12.215 | 12.215 | 12.215 | 12.215 | 12.215 | 12.215 | 14.215 | 12.215 | 14.215 | 14.215 | 16.215 | 14.215 | 16.215 | 16.215 | 16.215 | 16.215 | 18.215 |
| n min | 9.82 | 9.82 | 11.785 | 11.785 | 11.785 | 11.785 | 11.785 | 11.785 | 13.785 | 11.785 | 13.785 | 13.785 | 15.785 | 13.785 | 15.785 | 15.785 | 15.785 | 15.785 | 17.785 |
| t max | 5.2 | 5.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 7.2 | 6.2 | 7.2 | 6.2 | 8.5 | 6.2 | 8.5 | 6.2 | 6.2 | 6.2 | 9.5 |
| t min | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 5 | 6 | 5 | 7 | 5 | 7 | 5 | 5 | 5 | 8 |
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Application of DIN981 Locknuts For Use with Rolling Bearings:
Stainless Steel DIN 7983 Cross Recessed Raised Countersunk Head Tapping Screws are widely used in applications where reliable fastening, corrosion resistance, and a clean appearance are required. Made from stainless steel A2 (304) or A4 (316), these screws provide excellent resistance to rust and corrosion, making them suitable for both indoor and outdoor environments.
| Application | Details |
|---|---|
| Automotive Industry | Used for fixing interior components, panels, brackets, and lightweight metal parts due to their strong and secure fastening performance. |
| Electrical & Electronics Equipment | Ideal for assembling control cabinets, electrical enclosures, appliances, and electronic devices where corrosion resistance and precise fastening are important. |
| Sheet Metal Fabrication | Commonly used for fastening thin metal sheets without the need for pre-threaded holes, providing efficient and stable assembly. |
| Machinery & Industrial Equipment | Applied in mechanical assemblies, equipment housings, and components requiring durable and vibration-resistant connections. |
| Furniture & Hardware | Used in metal furniture, fittings, and hardware products where a neat countersunk appearance is preferred. |
| Construction & Building Applications | Suitable for various metal-to-metal and metal-to-plastic fastening tasks in environments requiring stainless steel performance. |
