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Roller Follower


Roller Follower
THK NAST25 needle roller follower, 25mm ID, 37mm OD, 20mm width. Large roller follower for heavy industrial guide applications.
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Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
This bearing is priced on application. Our team will get back to you with competitive pricing within 24 hours, no obligation.
THK NAST25 needle roller follower, 25mm ID, 37mm OD, 20mm width. Large roller follower for heavy industrial guide applications.
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Confirm these values match your shaft, housing and application requirements before ordering.
| Bore Diameter (d) | 25mm |
| Outer Diameter (D) | 37mm |
| Width (B) | 20mm |

Roller Follower
| Part Number | THK NAST25 |
| Brand | THK |
| Bearing Type | Roller Follower |
| Seal Type | Open |
| Bore (Inner Diameter) | 25 mm |
| Outer Diameter | 37 mm |
| Width / Thickness | 20 mm |
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The THK THK NAST25, is a roller follower, in an open configuration for maximum speed and easy relubrication, featuring a 25mm bore, 37mm outer diameter, and 20mm width, and is extended stock at Buy Bearings.
THK NAST25 needle roller follower, 25mm ID, 37mm OD, 20mm width. Large roller follower for heavy industrial guide applications.
The THK NAST25 roller follower is specified with 25mm bore (inner diameter), 37mm outer diameter, 20mm width. The Open sealing arrangement protects against contamination and retains lubricant for extended service life.
Roller Followers are commonly used in:
The THK NAST25 is a THK Roller Follower with a 25mm bore, 37mm outer diameter and 20mm width. It is Extended Stock at Buy Bearings.
The THK NAST25 measures 25mm bore (inner diameter) × 37mm outer diameter × 20mm width.
Open bearings have no seals or shields, allowing maximum speed and easy relubrication — best for clean, lubricated environments.
The THK NAST25 is Extended Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Matching seals and bushings for 25mm shaft diameter — complementary components for your bearing.







