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Spherical bearing ring


Spherical bearing ring

Category:

Spherical bearing ring

Key words:

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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