The 1633 is a deep groove ball bearing with bore 15.875mm, outer diameter 44.45mm, and width 12.7mm rated for dynamic load 9.4 kN.

| Bearing type | Deep Groove Ball Bearings |
| Series | Inch R / 1600 Series |
| Seal type | Confirm per inquiry |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Confirmed per drawing |
| Dimension unit | millimeter (mm) |
Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.
| Seal Type | Model Code | Typical Use | |
|---|---|---|---|
| Double metal shields | 1633ZZ | General dust protection | Quote → |
| Double contact rubber seals | 1633 2RS | Dust and moisture protection at moderate speed | Quote → |
| Double non-contact rubber seals | 1633 2RZ (inquiry only) | Lower-friction sealing at higher speed | Quote → |
| C3 radial clearance | 1633 C3 (inquiry only) | Motors and applications with higher operating temperature | Quote → |
| Bore diameter (d) | 15.875 |
| Outer diameter (D) | 44.45 |
| Width (B) | 12.7 |
Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.
Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).
The models below share the 15.875x44.45x12.7 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.
NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.
About NLHB →Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.
Request Quote →