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Spherical bearing ring
Spherical bearing ring
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Spherical bearing ring
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Spherical bearing ring
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Spherical bearing ring
| Part Category | Part Name | Material Recommendation | Specifications and Models (National Standard / Example) | Core Dimension Parameters (Example, Unit: mm) | Key Performance Parameters | Applicable Scenarios | Remarks |
| Radial Self-Aligning Type | Self-Aligning Ball Bearing Inner Ring | - Bearing Steel (GCr15SiMn)- Stainless Steel (440C)- Case-Charged Steel (20CrMnTi) | GB/T 281 (Self-Aligning Ball Bearing) Example: 2205 Inner Ring, 2210 Inner Ring | Inner diameter (d): 25 (G5), 50 (G5); Outer ring matching diameter (d2): 38 (r6), 72 (r6); Width (B): 15, 21; Spherical radius (R): 18 ± 0.1, 32 ± 0.1. | Hardness: HRC 60-64 (GCr15SiMn), HRC 58-62 (440C); Contact fatigue life: ± 1000h (at rated load); Surface roughness: Ra ± 0.2 μm (raceway surface). | Mainly bears radial loads and can compensate for shaft installation deviations, such as textile machinery main shafts and conveyor roller shafts. | Inner ring has an interference fit with the shaft (H7/k5); GCr15SiMn requires full hardening. + Low-temperature tempering |
| Radial self-aligning type | Self-aligning ball bearing outer ring | - Bearing steel (GCr15SiMn) - Stainless steel (440C) - High-temperature alloy (GH4169, special conditions) | GB/T 281 (self-aligning ball bearings) Example: 2205 outer ring, 2210 outer ring | Outer Diameter (D): 52 (m6), 90 (m6); Inner Raceway Diameter (D1): 42 (H7), 78 (H7); Width (B): 15, 21; Spherical Radius (R): 18 ± 0.1, 32 ± 0.1 | Hardness: HRC 60-64 (GCr15SiMn), HRC 58-62 (440°C); Temperature Resistance: ≤150°C (GCr15), ≤300°C (440°C); Radial Clearance: 0.008-0.025mm (C3 Group) | Matched with the inner ring to achieve self-alignment, suitable for medium- and low-speed (≤3000 rpm) and dusty operating conditions, such as mining machinery drive shafts | Transition fit between outer ring and bearing seat (H7/H6); GH4169 is preferred for high temperature conditions. |
| Axial spherical type | Thrust spherical roller bearing race | - Bearing steel (GCr15) - Case-hardened steel (20CrNiMoA) - Stainless steel (316L, for corrosion-resistant conditions) | GB/T 5859 (Thrust spherical roller bearing) Example: 29320 race, 29330 race | Inner Diameter (d): 100 (H7), 150 (H7) Outer Diameter (D): 170 (H8), 250 (H8) Thickness (T): 32, 45 Spherical Radius (R): 85 ± 0.2, 125 ± 0.2 | Hardness: HRC 58-62 (GCr15), HRC 56-60 (316L) Axial Dynamic Load Rating: ± 580 kN (29320), ± 1250 kN (29330) Impact Resistance: Capable of withstanding 1.5 times the rated static load | Mainly designed to withstand heavy axial loads and compensate for axial shaft deflection, such as in crane slewing mechanisms and press tables | The seat ring mounting surface must be flat (flatness ±0.01mm/m); 316L is suitable for humid and corrosive environments. |
| Axial aligning type | Thrust spherical roller bearing shaft washer | - Bearing steel (GCr15) - Case-hardened steel (20CrMnTi) - High-temperature bearing steel (GCr15SiMo, for high-temperature operating conditions) | GB/T 5859 (Thrust spherical roller bearings) Example: 29320 shaft washer, 29330 shaft washer | Inner Diameter (d): 100 (k6), 150 (k6) Mating Diameter (d1): 120 (s7), 180 (s7) Thickness (T): 32, 45 Spherical Radius (R): 85 ± 0.2, 125 ± 0.2 td> Hardness: HRC 60-64 (GCr15), HRC 58-62 (GCr15SiMo) Temperature Resistance: ≤ 250°C (GCr15SiMo), ≤ 150°C (GCr15) Wear Loss: ≤ 0.005mm/100h (Oil Lubrication) td> | Rigidly connected to the shaft, transmits axial force, and is suitable for low-speed (≤ 1500 rpm) and heavy-load applications, such as forging equipment spindles. td> | The shaft washer and shaft have an interference fit (H7/u6); periodic lubrication with extreme pressure gear oil is required. |
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