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- FUN 20 Series
- FUN 32 Series
- Solid Section
- SUN 20 Series
- SUN 25 Series
- SUN X14 Crossed Roller Series
- Flanged
- FEG 20 Series
- FEG 32 Series
- Solid Section
- SEG 20 Series
- SEG 25 Series
- SEG X14 Crossed Roller Series
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- FIG 20 Series
- FIG 32 Series
- Solid Section
- SIG 20 Series
- SIG 25 Series
- SIG X14 Crossed Roller Series
Product Catalogue
Find Out More
Product Catalogue
Find Out More
- Flanged
- FUN 20 Series
- FUN 32 Series
- Solid Section
- SUN 20 Series
- SUN 25 Series
- SUN X14 Crossed Roller Series
- Flanged
- FEG 20 Series
- FEG 32 Series
- Solid Section
- SEG 20 Series
- SEG 25 Series
- SEG X14 Crossed Roller Series
- Flanged
- FIG 20 Series
- FIG 32 Series
- Solid Section
- SIG 20 Series
- SIG 25 Series
- SIG X14 Crossed Roller Series
SSB Flatback Stainless inserts
QCB SSB “Flatback” Series bearing inserts AISI 440 C Stainless Inset, filled with food-grade grease.
These can be used with either the QCB Thermoplastic bearing units or the QCB Stainless Steel bearing units
Our engineers design, manufacture, and supply components to your exact specification. Contact us to discuss your project.
SSB Series inserts AISI 440 C
QCB flatback stainless steel insert for use with the QCB Thermoplastic bearing housings
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| NBC ref | Dimensions | Dynamic | Static | ||||||||||
| Bi | Be | r | n | G | ds | C | Co | ||||||
| mm | inch | mm | mm | mm | mm | mm | mm | mm | mm | KN | KN | kg | |
| SSB201-08 | 1/2 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | M6x0.75 or 1/4″-28 | 7.5 | 4.54 | 0.1 | |
| SSB201 | 12 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.09 | ||
| SSB202-09 | 9/16 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.08 | ||
| SSB202 | 15 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.08 | ||
| SSB202-10 | 5/8 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.08 | ||
| SSB203 | 17 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.08 | ||
| SSB203-11 | 11/16 | 47 | 22 | 12 | 1 | 6 | 16 | 4 | 7.5 | 4.54 | 0.08 | ||
| SSB204-12 | 3/4 | 47 | 25 | 14 | 1.5 | 7 | 18 | 5 | 10 | 6.3 | 0.13 | ||
| SSB204 | 20 | 3/4 | 47 | 25 | 14 | 1.5 | 7 | 18 | 5 | 10 | 6.3 | 0.13 | |
| SSB205-14 | 7/8 | 52 | 27 | 15 | 1.5 | 7.5 | 19.5 | 5 | 11 | 7.1 | 0.18 | ||
| SSB205-15 | 15/16 | 52 | 27 | 15 | 1.5 | 7.5 | 19.5 | 5 | 11 | 7.1 | 0.17 | ||
| SSB205 | 25 | 52 | 27 | 15 | 1.5 | 7.5 | 19.5 | 5 | 11 | 7.1 | 0.16 | ||
| SSB205-16 | 1 | 52 | 27 | 15 | 1.5 | 7.5 | 19.5 | 5 | 11 | 7.1 | 0.16 | ||
| SSB206-18 | 1.1/8 | 62 | 30 | 16 | 1.5 | 8 | 22 | 6 | 15.2 | 10.2 | 0.26 | ||
| SSB206-19 | 1.3/16 | 62 | 30 | 16 | 1.5 | 8 | 22 | 6 | 15.2 | 10.2 | 0.26 | ||
| SSB206 | 30 | 62 | 30 | 16 | 1.5 | 8 | 22 | 6 | 15.2 | 10.2 | 0.26 | ||
| SSB206-20 | 1.1/4 | 62 | 30 | 16 | 1.5 | 8 | 22 | 6 | 15.2 | 10.2 | 0.26 | ||
| SSB207-20 | 1.1/4 | 72 | 32 | 17 | 2 | 8.5 | 23.5 | 7 | M8x1 or 5/16″-24 | 20.1 | 13.9 | 0.4 | |
| SSB207-21 | 1.5/16 | 72 | 32 | 17 | 2 | 8.5 | 23.5 | 7 | 20.1 | 13.9 | 0.4 | ||
| SSB207-22 | 1.3/8 | 72 | 32 | 17 | 2 | 8.5 | 23.5 | 7 | 20.1 | 13.9 | 0.4 | ||
| SSB207 | 35 | 72 | 32 | 17 | 2 | 8.5 | 23.5 | 7 | 20.1 | 13.9 | 0.4 | ||
| SSB207-23 | 1.7/16 | 72 | 32 | 17 | 2 | 8.5 | 23.5 | 7 | 20.1 | 13.9 | 0.4 | ||
| SSB208-24 | 1.1/2 | 80 | 34 | 18 | 2 | 9 | 25 | 8 | 23 | 16 | 0.6 | ||
| SSB208-25 | 1.9/16 | 80 | 34 | 18 | 2 | 9 | 25 | 8 | 23 | 16 | 0.6 | ||
| SSB208 | 40 | 80 | 34 | 18 | 2 | 9 | 25 | 8 | 23 | 16 | 0.6 | ||
| SSB209-26 | 1.5/8 | 85 | 41.2 | 19 | 2 | 10.2 | 31 | 9 | 25.6 | 18.1 | 0.8 | ||
| SSB209-27 | 1.11/16 | 85 | 41.2 | 19 | 2 | 10.2 | 31 | 9 | 25.6 | 18.1 | 0.8 | ||
| SSB209-28 | 1.3/4 | 85 | 41.2 | 19 | 2 | 10.2 | 31 | 9 | 25.6 | 18.1 | 0.8 | ||
| SSB209 | 45 | 85 | 41.2 | 19 | 2 | 10.2 | 31 | 9 | 25.6 | 18.1 | 0.8 | ||
| SSB210-30 | 1.7/8 | 90 | 43.5 | 20 | 2 | 10.9 | 32.6 | 9 | M10x1.25 or 3/8″-24 | 27.5 | 20.2 | 0.95 | |
| SSB210-31 | 1.15/16 | 90 | 43.5 | 20 | 2 | 10.9 | 32.6 | 9 | 27.5 | 20.2 | 0.95 | ||
| SSB210 | 50 | 90 | 43.5 | 20 | 2 | 10.9 | 32.6 | 9 | 27.5 | 20.2 | 0.95 | ||
| SSB210-32 | 2 | 90 | 43.5 | 20 | 2 | 10.9 | 32.6 | 9 | 27.5 | 20.2 | 0.95 | ||
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SUC insert limiting speeds
The limiting speed of any ball bearing insert is, for practical purposes, determined by the quality of fit between the inner ring and the shaft.
| QCB Ref | Shaft tolerance | |||
| j7 | h7 | h8 | h9 | |
| SUC 201 | 6700 | 5300 | 3800 | 1400 |
| SUC 202 | 6700 | 5300 | 3800 | 1400 |
| SUC 203 | 6700 | 5300 | 3800 | 1400 |
| SUC 204 | 6000 | 4800 | 3400 | 1200 |
| SUC 205 | 5600 | 4000 | 3000 | 1000 |
| SUC 206 | 4500 | 3400 | 2400 | 850 |
| SUC 207 | 4000 | 3000 | 2000 | 750 |
| SUC 208 | 3600 | 2600 | 1900 | 670 |
| SUC 209 | 3200 | 2400 | 1700 | 600 |
| SUC 210 | 3000 | 2200 | 1600 | 560 |
| SUC 211 | 2600 | 2000 | 1400 | 500 |
| SUC 212 | 2400 | 1800 | 1200 | 450 |
Setscrew tightening torque
The 2 setscrews should be tightened to the appropriate torque figure. Over tightening may result in a fracture developing in the inner ring.
Should the axial load be high, a small dimple in the shaft may improve the locking effect, but beware of introducing unwanted stress concentration factors.
For best axial load carrying capacity the bearings should be mounted against a shoulder in the shaft.
| Size | Torque (Nm) |
| M6 | 4 |
| M8 | 8 |
| M10 | 15 |
Materials
QCB® Stainless Steel bearing units are made in high quality stainless steel for maximum corrosion resistance.
All pillow blocks and flange units have a solid base and smooth exterior surface restrict the growth of bacteria.
| Part | Material | ||
| bearing insert | Inner and outer rings | Stainless steel | AISI 440C |
| Balls | AISI 440 C | ||
| Cage/retainer | AISI 321 | ||
| Flinger seal | AISI 321 | ||
| Set screws | SU 304 | ||
| Rubber seals | Nitrile rubber | ||
| Housing | Housing body | Stainless steel | AISI 440 C |
| Grease nipple | AISI 304 |
Food Grade Lubricant
QCB® Stainless Steel SUC inserts are lubricated with MOBIL FM 222 grease
Under normal operating conditions, the suggested relubrication intervals are tabulated below (ndm = average diameter x rpm)
| ndm value | Environmental conditions | Temperature | Relubrication interval |
| < 40 000 | Clean | -15 to +65 °C | 6 – 12 months |
| +65 to +100 °C | 2 – 6 months | ||
| < 70 000 | Clean | -15 to +65 °C | 2 – 6 months |
| +65 to +100 °C | 1 month | ||
| Any | Dirty / Water splash | Any | 1 month |
Operating temperature range
QCB® Stainless Steel inserts can operate in environments from -30 to + 120C
For any enquiries regarding SSB Flatback Stainless inserts, please complete our enquiry form, and a member of our technical team will respond promptly. Alternatively, you can reach out directly to one of our offices using the contact details here. Our specialists are ready to provide guidance and support tailored to your machinery and engineering needs.