In house
Cut, machine, and assemble together
Gear cutting, shaft machining, bearing pouring, and final assembly all happen here. Your crusher or mill drive is never handed off to a third party shop between steps, so the fit is held end to end.
Houston, TX ยท Mining, aggregate, and quarry equipment repair
Mining Equipment Gearbox and Gear Repair in Houston TX
Aggregate is the most punishing duty a gear ever sees. Grit, shock load, and round the clock running chew through crusher drives, mill gears, and pump ends until the line stops. Solution Gear Co. rebuilds the heavy iron of mining, sand, quarry, gravel, and asphalt plants in house in Houston. We rebuild rock crushers, ball mills, bull gears, ring gears, trunion gears, planetary gearboxes, and pumps, and we cut new gears when the old ones are gone. Free shipping, free inspection, free pickup and delivery, and an up to 24 month warranty on every job.
Solution Gear Co. is a Houston, Texas mining and aggregate equipment repair shop, family owned and operated for over 20 years. We rebuild rock crushers, ball mills, bull gears, ring gears, trunion gears, slurry pumps, and planetary gearboxes for mining, sand, quarry, gravel, and asphalt operations. We cut new gears, regrind shafts, pour bearings, and reassemble the complete drive in house, so the unit ships back ready to run with free shipping, free inspection, free pickup and delivery, and an up to 24 month workmanship warranty. You can save up to 50 percent versus a new OEM unit.
One shop for the whole drive
From the crusher to the pump end, rebuilt under one roof.
A mining drive is a chain of parts, the bull gear, the pinion, the trunion, the bearings, and the gear case. When one fails, the rest are usually worn too. We cut gears, machine shafts, pour bearings, and rebuild gear cases here in Houston, so the complete unit comes back true to itself instead of stitched together from three different shops.
20+ years
Proven on heavy aggregate duty
For over two decades Houston, Pasadena, and Gulf Coast plants have trusted us to rebuild the crushers, mills, and gear drives that run sand, gravel, quarry, and asphalt around the clock.
Up to 50%
Less than a new OEM unit
A rebuilt crusher drive or mill gear comes back to size for a fraction of a new casting, often saving up to 50 percent versus OEM, with a faster turnaround than a long lead replacement.
What we rebuild
The heavy iron that keeps an aggregate plant running.
Every machine on this list comes through our Houston shop. We rebuild it, cut new gears for it when the old ones are spent, and ship it back ready to load.
Rock Crushers
Jaw, cone, gyratory, and impactor drives rebuilt. We replace and recut pinions and eccentric gears, regrind shafts, and pour the bearings so the crusher holds setting under shock load again.
Ball Mills & SAG Mills
Mill drive trains rebuilt end to end. We recut bull gears and pinions, true the trunion journals, and re babbitt the trunion bearings so the mill runs concentric and the gear mesh carries evenly.
Bull Gears & Pinions
Large bull gears and their pinions cut new or repaired in place. We reverse engineer the tooth form when no prints exist and can upgrade the material to harden the new gear against grit and abrasion.
Ring Gears
Mill and kiln ring gears, the girth gears that wrap the shell, rebuilt or cut fresh in segments. We match the pitch, helix, and bore so the new ring seats true on the flange.
Trunion Gears & Journals
Trunion gears recut and trunion journals remachined to round. We restore the bearing fit and the gear seat together so the mill turns on a true axis instead of pounding the babbitt.
Planetary Gearboxes
Planetary drives for crushers, conveyors, and mills rebuilt with new sun gears, planet gears, ring gears, and carriers. See our dedicated planetary gearbox repair work for the full process.
Slurry & Process Pumps
Slurry, sand, and process pumps rebuilt, with shafts remachined, sleeves replaced, and bearings poured, so the pump end carries the abrasive flow without walking off true.
Crane Wheels & Drives
Overhead and gantry crane wheels and travel drives are common in a quarry. We remachine and rebuild them too. See our crane wheel repair page for details.
Bearings of Every Kind
The babbitt, sleeve, and journal bearings that carry crusher, mill, and pump shafts poured and machined to the exact size. See our bearing repair and pouring service.
How a mining rebuild works
Our crusher and mill rebuild process, step by step.
This is exactly what happens from the moment a worn crusher, mill, or drive arrives at the shop to the day it ships back, rebuilt, machined, and ready to load.
01
Free pickup and inspection
We pick up the unit, including crating and rigging, and tear it down. We measure the gears, shafts, bearings, and case, and we check the tooth form and the journals. The inspection is free and tells you the real condition before any work begins.
02
Reverse engineer the gears
When no prints exist, we reverse engineer the bull gear, pinion, ring, or trunion gear from the worn part, capturing the pitch, pressure angle, helix, and tooth profile so the new gear matches the mesh exactly. This is the heart of our gearbox repair work.
03
Cut new gears
We cut spur, helical, bevel, and herringbone gears on our own machines, and we can upgrade the material to harden the new gear against the grit and shock of aggregate duty.
04
Remachine shafts and journals
Worn crusher eccentrics, mill trunions, and pump shafts are reground and remachined to round, so the new gears and bearings seat on a true surface instead of a worn one.
05
Pour and machine bearings
The babbitt and sleeve bearings that carry the drive are poured and bored to the exact journal size and clearance, so the shaft rides on a full oil film again.
06
Rebuild the gear case
Cracked or worn gear cases and housings are repaired and line bored so the bearings and gears sit true to the centerline, not to where the case wore.
07
Assemble and check mesh
The complete drive is reassembled, the backlash and contact pattern are checked, and the running clearance is set for the load and speed your equipment calls for, not a generic number.
08
Final inspection and up to a 24 month warranty
Every dimension is checked one last time and the unit is crated for free delivery back to your site. The completed work carries an up to 24 month workmanship warranty.
Who we keep running
Built for the operations that cannot afford a down day.
Aggregate runs on uptime. A crusher or mill that is down stops the whole plant, so we rebuild for the operations where every hour of production counts.
Mining & Quarry
Hard rock and quarry crushers, ball and SAG mills, ring gears, and trunion drives rebuilt and recut so the plant keeps moving rock through the cycle.
Sand, Gravel & Aggregate
Wash plant drives, screen gearboxes, slurry pumps, and conveyor drives rebuilt for the abrasive, wet duty that wears sand and gravel equipment fast.
Asphalt & Material Plants
Drum drives, pug mill gearboxes, and material handling drives rebuilt and recut so the asphalt plant holds production through the paving season.
A mining rebuild usually touches more than the gears. We also handle the shaft and roll remachining, the bearing pouring, and the planetary gearbox work as part of the same job, so the whole drive ships back ready to run.
Why aggregate gears fail early
Grit and shock, and what we do about them.
Mining duty fails gears in ways office machinery never sees. Knowing the failure mode is what lets us rebuild a gear that lasts instead of one that wears out the same way again.
Abrasion
Grit in the mesh
Rock dust gets past the seals and laps the tooth flanks like sandpaper. We can upgrade the gear material and hardness on the recut so the new tooth resists abrasive wear far longer than the original.
Shock
Tramp iron and impact
An uncrushable in a jaw or cone shock loads the whole train and chips teeth or cracks the case. We repair and line bore the case and recut the gear so the mesh carries the next slug of load evenly.
Wear
Worn journals and trunions
A mill that runs on a worn trunion pounds the babbitt and throws the gear mesh out of pattern. We remachine the journal to round first, then pour the bearing and seat the gear to the true axis.
Straight from the floor
Cut, machined, and ready to load.
Not stock photos. This is heavy iron we rebuilt and recut in our Houston shop, the same quality that goes back into your crusher, mill, or pump.
No risk to you
Why there is no reason to scrap a worn crusher or mill drive.
Restore
Rebuild, do not replace
A rebuilt drive comes back to original size and clearance for a fraction of a new casting, and you can save up to 50 percent versus OEM. No machine is beyond repair.
Free
Pickup, shipping, and inspection
Free pickup and delivery including crating and rigging, free shipping both ways, and a free inspection on every job. You see the real condition before you commit.
Backed
up to a 24 month warranty
An up to 24 month workmanship warranty on the gears, the machining, and the assembly. Built to carry aggregate load the way the original did, or better.
24/7
Emergency turnaround
Crusher down at 2am? Our 24 hour emergency line answers at 832 270 2009. Rush rebuilds turn in days, not the weeks an OEM replacement takes.
Questions, answered
What aggregate plants ask before they ship us a drive.
What mining and aggregate equipment do you repair?
We rebuild rock crushers, ball mills, bull gears, ring gears, trunion gears, planetary gearboxes, slurry and process pumps, and the bearings that carry them. We serve mining, sand, quarry, gravel, and asphalt operations across Houston and the Texas Gulf Coast. We can rebuild a single gear or a complete drive, and everything is done in house with free shipping, free inspection, and an up to 24 month workmanship warranty.
Can you make a new bull gear or ring gear without drawings?
Yes. When no prints exist we reverse engineer the gear from the worn part, measuring the pitch, pressure angle, helix, and tooth profile, then cut a new gear to match or improve on the original. This is common on older crushers and mills where the OEM is gone or quoting months of lead time. We cut spur, helical, bevel, and herringbone gears, and we can upgrade the material to harden the new gear against abrasive wear. See our gear cutting service for the full capability.
How fast can you turn around a crusher or mill that is down?
When an aggregate plant is down, every hour is lost production, so we run rush rebuilds on crushers, mills, and gearboxes. Our 24 hour emergency line answers at 832 270 2009, and we offer free pickup and delivery including crating and rigging so the unit gets to the shop fast. Many rebuilds turn in days rather than the weeks an OEM replacement takes, and you can save up to 50 percent versus a new OEM unit.
Do you rebuild planetary gearboxes and the bearings inside mining drives?
Yes. We rebuild planetary gearboxes for crusher, conveyor, and mill drives, replacing sun gears, planet gears, ring gears, and carriers, and we pour and machine the babbitt and sleeve bearings that support the shafts. Because we cut gears, machine shafts, and pour bearings under one roof, the complete drive ships back assembled and ready to run with one warranty covering the whole job.
Get a fast quote on your crusher, mill, or drive.
Free pickup and delivery, free shipping, free inspection, and an up to 24 month warranty on every rebuild. Tell us about your equipment and we will reply fast, often the same day. You can save up to 50 percent versus OEM.