![[THK] — Separable Needle Roller Bearing NAST-ZZ (with Side Plates)](https://prosourcemro.com/wp-content/uploads/2026/05/001-1058-1024x1024.png)
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THK
[THK] — Separable Needle Roller Bearing NAST-ZZ (with Side Plates)
Family ID: THK-NAST-ZZ
THK NAST-ZZ type Separable Needle Roller Bearing with side plates. Side plates on both sides of NAST inner ring form labyrinth seal for improved dust/contamination resistance. Inner diameter di = 6~50mm, outer diameter D = 19~90mm. Seal (UU) option available in addition to labyrinth side plates. NAST45ZZ: carbon steel only. Options: M (stainless, except NAST45ZZ), UU (seal), R (spherical outer ring R500).
13 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| NAST6ZZ | THK Needle Roller Bearing NAST6ZZ (side plates), di=6mm, D=19mm, C=4.12kN | THK | Inner Diameter (di): 6 mm | Outer Diameter (D): 19 mm | Width (B): 14 mm | Effective Width (C): 13.8 mm | Lube Port Diameter (a): 14.0 mm | Side Plate Thickness (e1): 2.5 mm | Basic Dynamic Load Rating C: 4.12 kN | Basic Static Load Rating C0: 4.55 kN | Track Load Capacity (cylindrical): 3.53 kN | Track Load Capacity (spherical): 1.37 kN | Limit Speed: 20000 min⁻¹ | Mass: 24.5 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST8ZZ | THK Needle Roller Bearing NAST8ZZ (side plates), di=8mm, D=24mm, C=5.68kN | THK | Inner Diameter (di): 8 mm | Outer Diameter (D): 24 mm | Width (B): 14 mm | Effective Width (C): 13.8 mm | Lube Port Diameter (a): 17.5 mm | Side Plate Thickness (e1): 2.5 mm | Basic Dynamic Load Rating C: 5.68 kN | Basic Static Load Rating C0: 5.89 kN | Track Load Capacity (cylindrical): 4.51 kN | Track Load Capacity (spherical): 1.86 kN | Limit Speed: 17000 min⁻¹ | Mass: 39.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST10ZZ | THK Needle Roller Bearing NAST10ZZ (side plates), di=10mm, D=30mm, C=9.7kN | THK | Inner Diameter (di): 10 mm | Outer Diameter (D): 30 mm | Width (B): 16 mm | Effective Width (C): 15.8 mm | Lube Port Diameter (a): 23.5 mm | Side Plate Thickness (e1): 2.5 mm | Basic Dynamic Load Rating C: 9.7 kN | Basic Static Load Rating C0: 9.67 kN | Track Load Capacity (cylindrical): 6.86 kN | Track Load Capacity (spherical): 2.45 kN | Limit Speed: 15000 min⁻¹ | Mass: 65.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST12ZZ | THK Needle Roller Bearing NAST12ZZ (side plates), di=12mm, D=32mm, C=10.4kN | THK | Inner Diameter (di): 12 mm | Outer Diameter (D): 32 mm | Width (B): 16 mm | Effective Width (C): 15.8 mm | Lube Port Diameter (a): 25.5 mm | Side Plate Thickness (e1): 2.5 mm | Basic Dynamic Load Rating C: 10.4 kN | Basic Static Load Rating C0: 10.9 kN | Track Load Capacity (cylindrical): 7.35 kN | Track Load Capacity (spherical): 2.74 kN | Limit Speed: 13000 min⁻¹ | Mass: 75.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST15ZZ | THK Needle Roller Bearing NAST15ZZ (side plates), di=15mm, D=35mm, C=12.3kN | THK | Inner Diameter (di): 15 mm | Outer Diameter (D): 35 mm | Width (B): 16 mm | Effective Width (C): 15.8 mm | Lube Port Diameter (a): 29.0 mm | Side Plate Thickness (e1): 2.5 mm | Basic Dynamic Load Rating C: 12.3 kN | Basic Static Load Rating C0: 14.3 kN | Track Load Capacity (cylindrical): 8.04 kN | Track Load Capacity (spherical): 3.14 kN | Limit Speed: 10000 min⁻¹ | Mass: 83.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST17ZZ | THK Needle Roller Bearing NAST17ZZ (side plates), di=17mm, D=40mm, C=17.4kN | THK | Inner Diameter (di): 17 mm | Outer Diameter (D): 40 mm | Width (B): 20 mm | Effective Width (C): 19.8 mm | Lube Port Diameter (a): 32.5 mm | Side Plate Thickness (e1): 3.0 mm | Basic Dynamic Load Rating C: 17.4 kN | Basic Static Load Rating C0: 20.9 kN | Track Load Capacity (cylindrical): 11.8 kN | Track Load Capacity (spherical): 3.72 kN | Limit Speed: 9500 min⁻¹ | Mass: 135.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST20ZZ | THK Needle Roller Bearing NAST20ZZ (side plates), di=20mm, D=47mm, C=19.2kN | THK | Inner Diameter (di): 20 mm | Outer Diameter (D): 47 mm | Width (B): 20 mm | Effective Width (C): 19.8 mm | Lube Port Diameter (a): 38.0 mm | Side Plate Thickness (e1): 3.0 mm | Basic Dynamic Load Rating C: 19.2 kN | Basic Static Load Rating C0: 24.5 kN | Track Load Capacity (cylindrical): 13.8 kN | Track Load Capacity (spherical): 4.61 kN | Limit Speed: 8500 min⁻¹ | Mass: 195.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST25ZZ | THK Needle Roller Bearing NAST25ZZ (side plates), di=25mm, D=52mm, C=20.7kN | THK | Inner Diameter (di): 25 mm | Outer Diameter (D): 52 mm | Width (B): 20 mm | Effective Width (C): 19.8 mm | Lube Port Diameter (a): 43.0 mm | Side Plate Thickness (e1): 3.0 mm | Basic Dynamic Load Rating C: 20.7 kN | Basic Static Load Rating C0: 28.4 kN | Track Load Capacity (cylindrical): 15.3 kN | Track Load Capacity (spherical): 5.29 kN | Limit Speed: 7000 min⁻¹ | Mass: 225.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST30ZZ | THK Needle Roller Bearing NAST30ZZ (side plates), di=30mm, D=62mm, C=30.3kN | THK | Inner Diameter (di): 30 mm | Outer Diameter (D): 62 mm | Width (B): 25 mm | Effective Width (C): 24.8 mm | Lube Port Diameter (a): 50.5 mm | Side Plate Thickness (e1): 4.0 mm | Basic Dynamic Load Rating C: 30.3 kN | Basic Static Load Rating C0: 45.4 kN | Track Load Capacity (cylindrical): 22.1 kN | Track Load Capacity (spherical): 6.66 kN | Limit Speed: 5500 min⁻¹ | Mass: 400.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST35ZZ | THK Needle Roller Bearing NAST35ZZ (side plates), di=35mm, D=72mm, C=32.2kN | THK | Inner Diameter (di): 35 mm | Outer Diameter (D): 72 mm | Width (B): 25 mm | Effective Width (C): 24.8 mm | Lube Port Diameter (a): 53.5 mm | Side Plate Thickness (e1): 4.0 mm | Basic Dynamic Load Rating C: 32.2 kN | Basic Static Load Rating C0: 50.6 kN | Track Load Capacity (cylindrical): 25.7 kN | Track Load Capacity (spherical): 8.13 kN | Limit Speed: 5000 min⁻¹ | Mass: 550.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST40ZZ | THK Needle Roller Bearing NAST40ZZ (side plates), di=40mm, D=80mm, C=35.7kN | THK | Inner Diameter (di): 40 mm | Outer Diameter (D): 80 mm | Width (B): 26 mm | Effective Width (C): 25.8 mm | Lube Port Diameter (a): 61.5 mm | Side Plate Thickness (e1): 4.0 mm | Basic Dynamic Load Rating C: 35.7 kN | Basic Static Load Rating C0: 61.6 kN | Track Load Capacity (cylindrical): 30.3 kN | Track Load Capacity (spherical): 9.31 kN | Limit Speed: 4000 min⁻¹ | Mass: 710.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST45ZZ | THK Needle Roller Bearing NAST45ZZ (side plates), di=45mm, D=85mm, C=37.1kN | THK | Inner Diameter (di): 45 mm | Outer Diameter (D): 85 mm | Width (B): 26 mm | Effective Width (C): 25.8 mm | Lube Port Diameter (a): 66.5 mm | Side Plate Thickness (e1): 4.0 mm | Basic Dynamic Load Rating C: 37.1 kN | Basic Static Load Rating C0: 66.4 kN | Track Load Capacity (cylindrical): 31.1 kN | Track Load Capacity (spherical): 10.1 kN | Limit Speed: 4000 min⁻¹ | Mass: 760.0 g | Material: Carbon steel only (stainless not available) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) | ||
| NAST50ZZ | THK Needle Roller Bearing NAST50ZZ (side plates), di=50mm, D=90mm, C=38.7kN | THK | Inner Diameter (di): 50 mm | Outer Diameter (D): 90 mm | Width (B): 26 mm | Effective Width (C): 25.8 mm | Lube Port Diameter (a): 76.0 mm | Side Plate Thickness (e1): 4.0 mm | Basic Dynamic Load Rating C: 38.7 kN | Basic Static Load Rating C0: 71.8 kN | Track Load Capacity (cylindrical): 34.0 kN | Track Load Capacity (spherical): 11.0 kN | Limit Speed: 3500 min⁻¹ | Mass: 830.0 g | Material: Carbon steel or stainless (M option) | Options: M=stainless, UU=seal, R=spherical outer ring (R500) | Type: Separable with side plates (labyrinth seal) |
