SKF · mounted bearings
SKF SY 40 TF/VA228
Ball bearing units — manufacturer technical reference and quotation support in Saudi Arabia.
لطلب عرض سعر في السعودية، أرسل رقم القطعة أو المقاس والكمية والمدينة. يُرجى تأكيد التوافق والتوفر والسعر مع فريقنا.
| Shaft diameter | 40 mm |
|---|---|
| Centre height (pillow block) | 49.2 mm |
| Housing overall width | 48 mm |
| Centre distance between bolt holes | 135.5 mm |
| Bearing width, total | 49.2 mm |
| Attachment bolt diameter | 12 mm |
| Basic dynamic load rating | 30.7 kN |
| Basic static load rating | 19 kN |
| Limiting speed | 150 r/min |
| Maximum operating temperature | 350 °C |
| Housing type | Pillow block, normal base |
| Number of bolt holes for fasteners | 2 |
| Fastening bolt hole type | Plain |
| Retaining feature, inner ring | Set screws |
| Bore type | Cylindrical |
| Rubber seating ring | Without |
| Material, housing | Cast iron |
| Material, bearing | High temperature steel |
| Coating | Zinc-coated housing and manganese phosphate coated bearing |
| Sealing, bearing | Shield and flinger on both sides |
| Sealing type | Non-contact |
| Sealing, unit | Without |
| Lubricant | Solid lubricant |
| Relubrication hole | Without |
| Grease fitting | Without |
| Unit system | Metric |
| Product net weight | 1.93 kg |
| eClass code | 23-05-90-90 |
| UNSPSC code | 31171536 |
| Running in required | No |
| Dimensions · Shaft diameter · (d) | 40 mm |
| Dimensions · Shoulder diameter inner ring · (d_1) · ≈ | 51.8 mm |
| Dimensions · Base width · (A) | 48 mm |
| Dimensions · Top width · (A_1) | 30 mm |
| Dimensions · Width inner ring · (B) | 49.2 mm |
| Dimensions · Distance from locking device side face to thread centre · (B_4) | 8 mm |
| Dimensions · Spherical seat centre height · (H) | 49.2 mm |
| Dimensions · Step height · (H_1) | 19 mm |
| Dimensions · Overall height · (H_2) | 99 mm |
| Dimensions · Distance between attachment bolts · (J) | 135.5 mm |
| Dimensions · Minimum distance between attachment bolts · (J) · min. | 125 mm |
| Dimensions · Maximum distance between attachment bolts · (J) · max. | 146 mm |
| Dimensions · Overall width · (L) | 175 mm |
| Dimensions · Width of attachment bolt hole · (N) | 14 mm |
| Dimensions · Length of attachment bolt hole · (N_1) | 24.5 mm |
| Dimensions · Distance from locking device side face to raceway centre · (s_1) | 30.2 mm |
| Calculation data · Basic dynamic load rating · (C) | 30.7 kN |
| Calculation data · Basic static load rating · (C_0) | 19 kN |
| Calculation data · Limiting speed | 150 r/min |
| Calculation data · Operating temperature · (T) · max. | 350 °C |
| Mounting information · Set screw · (G_2) | M8x1 |
| Mounting information · Hexagonal key size for set screw | 4 mm |
| Mounting information · Recommended tightening torque for set screw | 6.5 N·m |
| Mounting information · Attachment bolts, recommended metric size · (G) | 12 mm |
| Mounting information · Attachment bolts, recommended inch size · (G) | 0.5 in |
Family specifications and selection conditions
| Product description | Pillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface. This variant is suitable for high temperature applications, and for both constant and alternating directions of rotation. It has an inner ring extended on both sides and is locked onto the shaft by tightening a set screw on the inner ring, making it easy to mount. |
|---|---|
| Manufacturer features | Strong • For high temperature applications • Designed for a constant and alternating rotation • Ready to mount • Lubricated and sealed bearing • Quick locking onto the shaft |
Manufacturer references
Follow the complete manufacturer documentation for application restrictions, materials, tolerances and installation requirements. Limits may not apply simultaneously. We do not publish inferred stock, pricing or ratings.