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NTN 4T-30311D
Taper Roller Bearing
NTN 4T-30311D
Taper Roller Bearing
NTN 4T-30311D - Taper Roller Bearing Metric with Parallel Shaft - ID 55 OD 120 W 31.5mm
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NTN 4T-30311D - Taper Roller Bearing Metric with Parallel Shaft - ID 55 OD 120 W 31.5mm
Price Match Promise
Found it cheaper elsewhere? We’ll match any UK competitor’s price on bearings in stock — call us before you buy.
Technical Dimensions & Load Ratings
Confirm these values match your shaft, housing and application requirements before ordering.
Dimensions
| Bore Diameter (d) | 55mm |
| Outer Diameter (D) | 120mm |
| Width (B) | 31.5mm |
| Weight | 1580kg |
NTN 4T-30311D
Taper Roller Bearing
Technical Specifications
| Part Number | NTN 4T-30311D |
| Brand | NTN/SNR |
| Bearing Type | Taper Roller Bearing |
| Seal Type | Open |
| Bore (Inner Diameter) | 55 mm |
| Outer Diameter | 120 mm |
| Width / Thickness | 31.5 mm |
| Approximate Weight | 1580 kg |
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Technical Datasheet
Download full specifications for NTN 4T-30311D — dimensions, load ratings, and material data.
NTN/SNR Technical Resources
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About the NTN/SNR NTN 4T-30311D
The NTN/SNR NTN 4T-30311D, is a taper roller bearing, in an open configuration for maximum speed and easy relubrication, featuring a 55mm bore, 120mm outer diameter, and 31.5mm width, and is in stock at Buy Bearings.
NTN 4T-30311D - Taper Roller Bearing Metric with Parallel Shaft - ID 55 OD 120 W 31.5mm
Key Specifications
The NTN 4T-30311D taper roller bearing is specified with 55mm bore (inner diameter), 120mm outer diameter, 31.5mm width, 1580kg approximate weight. The Open sealing arrangement protects against contamination and retains lubricant for extended service life.
Common Applications
Taper Roller Bearings are commonly used in:
Why Buy the NTN 4T-30311D from Buy Bearings?
- UK-authorised distributor with genuine NTN/SNR products
- Expert technical support from our engineering team
- Competitive pricing with fast UK dispatch
- Full technical datasheet and cross-reference support
- 30-day returns on standard products
Frequently Asked Questions
What is a NTN 4T-30311D bearing?
The NTN 4T-30311D is a NTN/SNR Taper Roller Bearing with a 55mm bore, 120mm outer diameter and 31.5mm width. It is In Stock at Buy Bearings.
What are the NTN 4T-30311D dimensions?
The NTN 4T-30311D measures 55mm bore (inner diameter) × 120mm outer diameter × 31.5mm width.
What does Open mean on a bearing?
Open bearings have no seals or shields, allowing maximum speed and easy relubrication — best for clean, lubricated environments.
Is the NTN 4T-30311D in stock?
The NTN 4T-30311D is In Stock at Buy Bearings. Submit an enquiry or call our sales team for current stock and pricing (POA).
Related & Compatible Bearings
Same taper roller bearing, closest dimensions first — useful if you need a slightly different size or this part is unavailable.
Related Parts — Seals & Bushings
Matching seals and bushings for 55mm shaft diameter — complementary components for your bearing.
